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MATSUMOTO, Akiyoshi
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305-0047 1-2-1 Sengen Tsukuba Ibaraki JAPAN [Access]
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Research papers TSV

2019
  1. Tomohiro Miyajima, Ryo Teranishi, Syotaro Yasuyama, Yukio Sato, Kenji Kaneko, Valery Petrykin, Sergey Lee, Tatsunori Okada, Satoshi Awaji, Akiyoshi Matsumoto. Influence of joint pressure on superconducting and mechanical properties for jointed GdBa2Cu3Oy coated conductors via precursor films. Japanese Journal of Applied Physics. 58 [5] (2019) 050907 10.7567/1347-4065/ab0727
2018
  1. Y.C. Zhang, A. Matsumoto, K. Togano, Y. Takano, H. Kumakura. Enhancement of the critical current density of in-situ powder-in-tube processed MgB 2 wires with both xylene and SiC addition. Physica C: Superconductivity and its Applications. 551 (2018) 5-9 10.1016/j.physc.2018.05.004
  2. Takeshi Araki, Mariko Hayashi, Hirotaka Ishii, Daisaku Yokoe, Ryuji Yoshida, Takeharu Kato, Gen Nishijima, Akiyoshi Matsumoto. Clustered atom-replaced structure in single-crystal-like metal oxide. Superconductor Science and Technology. 31 [6] (2018) 065008 10.1088/1361-6668/aabb4b
  3. Akiyoshi Matsumoto, H. Kitaguchi, T. Kuwahara, S. Sakai, T. Sueyoshi, T. Fujiyoshi. Microstructure and Superconducting Properties of Doped Bi,Pb-2223 Thin Films Fabricated by Sputtering and Annealing. IEEE Transactions on Applied Superconductivity. 28 [4] (2018) 1-4 10.1109/tasc.2018.2799424
  4. T. Fujiyoshi, T. Sueyoshi, R. Kuwahara, S. Sakai, A. Matsumoto, H. Kitaguchi, N. Ishikawa. Flux Pinning Properties of Bi,Pb2223 Films With Columnar Defects by Xe Irradiation. IEEE Transactions on Applied Superconductivity. 28 [4] (2018) 1-4 10.1109/tasc.2018.2807809
  5. Mariko Hayashi, Takeshi Araki, Hirotaka Ishii, Gen Nishijima, Akiyoshi Matsumoto. Atom-replaced pins in a Y-based superconductor—single-crystalline perovskite structure including both PrBa2Cu3O7−x and YBa2Cu3O7−y. Superconductor Science and Technology. 31 [5] (2018) 055013 10.1088/1361-6668/aab673
  6. Yusuke Shimada, Satoshi Hata, Ken-ichi Ikeda, Hideharu Nakashima, Akiyoshi Matsumoto, Kazumasa Togano, Hiroaki Kumakura. Infiltration behavior of molten Mg and its influence on microstructural evolution in SiC-doped MgB 2 wires prepared by internal Mg diffusion process. Journal of Alloys and Compounds. 740 (2018) 305-311 10.1016/j.jallcom.2018.01.012
  7. Akiyoshi Matsumoto, Hiroaki Kumakura. Superconducting Joints Made With Internal-Magnesium-Diffusion-Processed MgB2 Wires. IEEE Transactions on Applied Superconductivity. 28 [3] (2018) 1-4 10.1109/tasc.2017.2772813
2017
  1. Hiroaki KUMAKURA, Zhaoshun GAO, Akiyoshi MATSUMOTO, Akihiro KIKUCHI, Kazumasa TOGANO. パウダー・イン・チューブ(PIT)法による(Ba(Sr),K)Fe2As2超電導線材の開発. TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 52 [6] (2017) 405-414 10.2221/jcsj.52.405
  2. Zhaoshun Gao, Kazumasa Togano, Yunchao Zhang, Akiyoshi Matsumoto, Akihiro Kikuchi, Hiroaki Kumakura. High transport Jc in stainless steel/Ag-Sn double sheathed Ba122 tapes. Superconductor Science and Technology. 30 [9] (2017) 095012 10.1088/1361-6668/aa7bb9
  3. Yusuke Saito, Masato Murakami, Akiyoshi Matsumoto, Hiroaki Kumakura. Improvement in microstructure and superconducting properties of single-filament powder-in-tube MgB2wires by cold working with a swaging machine. Superconductor Science and Technology. 30 [6] (2017) 065005 10.1088/1361-6668/aa6b48
  4. Hiroaki Kumakura, Akiyoshi Matsumoto, Hideyuki Yamada, Masazumi Hirakawa. Microstructure and Superconducting Properties of MgB<SUB>2</SUB> Tapes Fabricated with Boron Fibers. Journal of the Japan Institute of Metals. 67 [9] (2017) 487-493 10.2320/jinstmet1952.67.9_487
  5. Hiroaki Kumakura, Akiyoshi Matsumoto, Hiroki Fujii, Kazumasa Togano. Development of Powder-in-Tube Processed MgB<SUB>2</SUB> Tapes and Wires. Journal of the Japan Institute of Metals. 66 [4] (2017) 214-222 10.2320/jinstmet1952.66.4_214
  6. Akiyoshi Matsumoto, Hiroaki Kumakura, Hitoshi Kitaguchi, Kazumasa Togano. The Control of Microstructures for High-<I>J</I><SUB>C</SUB> Bi-2212/Ag Tapes. Journal of the Japan Institute of Metals. 66 [4] (2017) 242-246 10.2320/jinstmet1952.66.4_242
  7. Motomune Kodama, Takaaki Suzuki, Hideki Tanaka, Kenji Okishiro, Kazutaka Okamoto, Gen Nishijima, Akiyoshi Matsumoto, Akiyasu Yamamoto, Jun-ichi Shimoyama, Kohji Kishio. High-performance dense MgB2superconducting wire fabricated from mechanically milled powder. Superconductor Science and Technology. 30 [4] (2017) 044006 10.1088/1361-6668/aa5f36
  8. K Togano, Z Gao, A Matsumoto, A Kikuchi, H Kumakura. Fabrication of (Ba,K)Fe2As2tapes byex situPIT process using Ag-Sn alloy single sheath. Superconductor Science and Technology. 30 [1] (2017) 015012 10.1088/0953-2048/30/1/015012
2016
  1. Motomune Kodama, Hiroshi Kotaki, Hiroyuki Yamamoto, Tomohiro Iwane, Kazuhide Tanaka, Hideki Tanaka, Kenji Okishiro, Kazutaka Okamoto, Gen Nishijima, Akiyoshi Matsumoto, Hiroaki Kumakura, Akiyasu Yamamoto, Jun-ichi Shimoyama, Kohji Kishio. Electromagnetic properties and microstructures ofin situMgB2wires made from three types of boron powders. Superconductor Science and Technology. 29 [10] (2016) 105016 10.1088/0953-2048/29/10/105016
  2. Hiroaki Kumakura, Shujun Ye, Akiyoshi Matsumoto, Ryuji Nitta. Influence of Particle Size of Mg Powder on the Microstructure and Critical Currents of <i>In Situ</i> Powder-in-tube Processed MgB<sub>2</sub> Wires. Journal of the Japan Institute of Metals. 80 [7] (2016) 452-456 10.2320/jinstmet.jc201606
  3. Masayoshi Inoue, Hiroshi Tatara, Kazutaka Harada, Kohei Higashikawa, Shujun Ye, Akiyoshi Matsumoto, Hiroaki Kumakura, Takanobu Kiss. Three-Dimensional Analysis of MgB2Wire by use of X-ray Micro-Tomography. IEEE Transactions on Applied Superconductivity. 26 [3] (2016) 1-4 10.1109/tasc.2016.2542738
  4. Akiyoshi Matsumoto. Thin Films of Bi-2223. World Scientific Series in Applications of Superconductivity and Related Phenomena. 1 (2016) 123-134 10.1142/9789814749268_0009
2014
  1. K. Higashikawa, A. Yamamoto, T. Kiss, S. Ye, A. Matsumoto, H. Kumakura. Magnetic microscopy for characterization of local critical current in iron-sheathed MgB2 wires. Physica C: Superconductivity and its Applications. 504 (2014) 62-64 10.1016/j.physc.2014.04.009
  2. Shu Jun Ye, Akiyoshi Matsumoto, Yun Chao Zhang, Hiroaki Kumakura. Strong enhancement of high-field critical current properties and irreversibility field of MgB2superconducting wires by coronene active carbon source addition via the new B powder carbon-coating method. Superconductor Science and Technology. 27 [8] (2014) 085012 10.1088/0953-2048/27/8/085012
  3. Hiroaki Kumakura, Shujun Ye, Zhaoshim Gao, Yunchao Zhang, Akiyoshi Matsumoto, Kazumasa Togano. Microstructure and Critical Current Density of MgB2 and (Ba(Sr), K)Fe2As2 Wires and Tapes. Journal of the Japan Institute of Metals and Materials. 78 [8] (2014) 287-294 10.2320/jinstmet.j2014015
  4. ShuJun Ye, Akiyoshi Matsumoto, Kazumasa Togano, YunChao Zhang, Takahito Ohmura, Hiroaki Kumakura. Fabrication of MgB2superconducting wires with a hybrid method combining internal-Mg-diffusion and powder-in-tube processes. Superconductor Science and Technology. 27 [5] (2014) 055017 10.1088/0953-2048/27/5/055017
  5. Takuya YOSHIMURA, Toshiya DOI, Takemori IZUMI, Takumi OZAKI, Akiyoshi MATSUMOTO, Hitoshi KITAGUCHI, Takato KAJIHARA, Yusuke SHIMADA, Satoshi HATA*, Ken-ichi IKEDA, Hideharu NAKASHIMA, Yoshinori HAKURAKU. Fabrication of (Bi,Pb)2223 Films by a DC Magnetron Sputtering Method. TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 48 [2] (2014) 95-101 10.2221/jcsj.48.95
  6. Akiyoshi Matsumoto, Zhaoshun Gao, Kazumasa Togano, Hiroaki Kumakura. Critical current density enhancement of uniaxially pressed Ag-sheathed (Sr,K)Fe2As2superconducting wires. Superconductor Science and Technology. 27 [2] (2014) 025011 10.1088/0953-2048/27/2/025011
  7. A Matsumoto, H Kitaguchi. Critical current density enhancement of Bi, Pb-2223 thin film fabricated by RF sputtering and post-annealing processes. Superconductor Science and Technology. 27 [1] (2014) 015002 10.1088/0953-2048/27/1/015002
2013
  1. ShuJun Ye, Minghui Song, Akiyoshi Matsumoto, Kazumasa Togano, Masaki Takeguchi, Takahito Ohmura, Hiroaki Kumakura. High-performance MgB2superconducting wires for use under liquid-helium-free conditions fabricated using an internal Mg diffusion process. Superconductor Science and Technology. 26 [12] (2013) 125003 10.1088/0953-2048/26/12/125003
  2. Kazumasa Togano, Zhaoshun Gao, Akiyoshi Matsumoto, Hiroaki Kumakura. Enhancement in transport critical current density ofex situPIT Ag/(Ba, K)Fe2As2tapes achieved by applying a combined process of flat rolling and uniaxial pressing. Superconductor Science and Technology. 26 [11] (2013) 115007 10.1088/0953-2048/26/11/115007
  3. S J Ye, A Matsumoto, K Togano, T Ohmura, H Kumakura. The critical current properties of 37-filament internal Mg diffusion-processed MgB2wires. Superconductor Science and Technology. 26 [10] (2013) 105027 10.1088/0953-2048/26/10/105027
  4. Kazumasa Togano, Zhaoshun Gao, Hideaki Taira, Shigeyuki Ishida, Kunihiro Kihou, Akira Iyo, Hiroshi Eisaki, Akiyoshi Matsumoto, Hiroaki Kumakura. Enhanced high-field transport critical current densities observed forex situPIT processed Ag/(Ba, K)Fe2As2thin tapes. Superconductor Science and Technology. 26 [6] (2013) 065003 10.1088/0953-2048/26/6/065003
  5. T. Takeuchi, K. Nakagawa, K. Tsuchiya, N. Banno, A. Matsumoto, Y. Iijima, A. Kikuchi, T. Nakamoto. Applicability of Reel-to-Reel RHQ Treatments to $ \hbox{Nb}_{3}\hbox{Al}$ Precursors With a Ta/Cu/Ta Three-Layer Filament-Barrier Structure. IEEE Transactions on Applied Superconductivity. 23 [3] (2013) 6000805-6000805 10.1109/tasc.2012.2236876
  6. A. Matsumoto, H. Kitaguchi, T. Doi, T. Kajihara, S. Hata. The Microstructure and Superconducting Properties of Bi,Pb-2223 Thin Film Fabricated by RF Sputtering and Annealing Method. IEEE Transactions on Applied Superconductivity. 23 [3] (2013) 7500504-7500504 10.1109/tasc.2012.2233856
  7. T. Kajihara, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, T. Mochiku, H. Kitaguchi, T. Doi. Formation of Bi, Pb-2223 and Microstructural Evolution in Pb-Ca-Cu Deposited Bi-2212(001) Single Crystal by Heat Treatment. Physics Procedia. 45 (2013) 69-72 10.1016/j.phpro.2013.04.054
  8. H. Sosiati, S. Hata, T. Doi, A. Matsumoto, H. Kitaguchi, H. Nakashima. Nanostructure characterization of Ni and B layers as artificial pinning centers in multilayered MgB2/Ni and MgB2/B superconducting thin films. Physica C: Superconductivity. 488 (2013) 1-8 10.1016/j.physc.2013.02.011
  9. Yanwei Ma, Chao Yao, Xianping Zhang, He Lin, Dongliang Wang, A Matsumoto, H Kumakura, Y Tsuchiya, Y Sun, T Tamegai. Large transport critical currents and magneto-optical imaging of textured Sr1−xKxFe2As2superconducting tapes. Superconductor Science and Technology. 26 [3] (2013) 035011 10.1088/0953-2048/26/3/035011
  10. S.J. Ye, M. Song, A. Matsumoto, K. Togano, M. Takeguchi, H. Kumakura, R. Teranishi, T. Kiyoshi. Comparison of SiC and/or toluene additives to the critical current density of internal Mg diffusion-processed MgB2 wires. Physica C: Superconductivity. 484 (2013) 167-170 10.1016/j.physc.2012.03.012
  11. S. Hata, H. Sosiati, Y. Shimada, A. Matsumoto, K. Ikeda, H. Nakashima, H. Kitaguchi, H. Kumakura. Imperfection of microstructural control in MgB2 superconducting tapes fabricated using an in-situ powder-in-tube process: toward practical applications. Journal of Materials Science. 48 [1] (2013) 132-139 10.1007/s10853-012-6901-5
2012
  1. S J Ye, M Song, A Matsumoto, K Togano, Y Zhang, H Kumakura, M Takeguchi, R Teranishi, T Kiyoshi. Enhancing the critical current properties of internal Mg diffusion-processed MgB2wires by Mg addition. Superconductor Science and Technology. 25 [12] (2012) 125014 10.1088/0953-2048/25/12/125014
  2. Akiyoshi Matsumoto, Kazumasa Togano, Hiroaki Kumakura. Microstructure and superconducting properties of Ag-sheathed (Ba, K)Fe2As2+ Ag superconducting wires fabricated by anex situpowder-in-tube process. Superconductor Science and Technology. 25 [12] (2012) 125010 10.1088/0953-2048/25/12/125010
  3. Y. Yamada, M. Kanazawa, T. Ohno, K. Tachikawa, K. Kajikawa, T. Inoue, I. Aoki, A. Matsumoto, H. Kumakura. PIT Processed ${\rm MgB}_{2}$ Thin Wires Sheathed With Stainless Steel. IEEE Transactions on Applied Superconductivity. 22 [3] (2012) 6200304-6200304 10.1109/tasc.2011.2176295
  4. G Nishijima, S J Ye, A Matsumoto, K Togano, H Kumakura, H Kitaguchi, H Oguro. Mechanical properties of MgB2superconducting wires fabricated by internal Mg diffusion process. Superconductor Science and Technology. 25 [5] (2012) 054012 10.1088/0953-2048/25/5/054012
  5. K. Togano, A. Matsumoto, H. Kumakura. Fabrication and transport properties of ex situ powder-in-tube (PIT) processed (Ba,K)Fe2As2 superconducting wires. Solid State Communications. 152 [8] (2012) 740-746 10.1016/j.ssc.2011.12.014
  6. Jung Ho Kim, Sangjun Oh, Yoon-Uk Heo, Satoshi Hata, Hiroaki Kumakura, Akiyoshi Matsumoto, Masatoshi Mitsuhara, Seyong Choi, Yusuke Shimada, Minoru Maeda, Judith L MacManus-Driscoll, Shi Xue Dou. Microscopic role of carbon on MgB2 wire for critical current density comparable to NbTi. NPG Asia Materials. 4 [1] (2012) e3-e3 10.1038/am.2012.3
  7. Xifeng Pan, Akiyoshi Matsumoto, Hiroaki Kumakura, Yong Zhao, Guo Yan, Yong Feng. Combined Effect of Upper Critical Field and Flux Pinning on Enhancing Critical Current Density ofIn-situMgB$_{2}$/Fe Tapes with Various Carbon Sources Simultaneously Doped. Applied Physics Express. 5 [1] (2012) 013102 10.1143/apex.5.013102
2011
  1. Jung Ho Kim, Sangjun Oh, Hiroaki Kumakura, Akiyoshi Matsumoto, Yoon-Uk Heo, Kyeong-Se Song, Yong-Mook Kang, Minoru Maeda, Matt Rindfleisch, Mike Tomsic, Seyong Choi, Shi Xue Dou. Tailored Materials for High-Performance MgB2Wire. Advanced Materials. 23 [42] (2011) 4942-4946 10.1002/adma.201101243
  2. S.J. Ye, A. Matsumoto, K. Togano, H. Kumakura. Enhancement of the critical current density of internal Mg diffusion processed MgB2 wires by the addition of both SiC and liquid aromatic hydrocarbon. Physica C: Superconductivity and its Applications. 471 [21-22] (2011) 1133-1136 10.1016/j.physc.2011.05.142
  3. X.F. Pan, A. Matsumoto, H. Kumakura, C.H. Cheng, Y. Zhao. Cooperative doping effects of Ti and nano-SiC on transport critical current density and grain connectivity of in situ MgB2 tapes. Physica C: Superconductivity and its Applications. 471 [21-22] (2011) 1128-1132 10.1016/j.physc.2011.05.141
  4. Y. Shimada, Y. Kubota, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, K. Togano, H. Kumakura. Electron microscopy observations of MgB2 wire prepared by an internal Mg diffusion method. Physica C: Superconductivity and its Applications. 471 [21-22] (2011) 1137-1141 10.1016/j.physc.2011.05.143
  5. Hiroaki Kumakura, Jahmahn Hur, Kazumasa Togano, Akiyoshi Matsumoto, Hitoshi Wada, Kaoru Kimura. Superconducting Properties of Diffusion-Processed Multifilamentary ${\rm MgB}_{2}$ Wires. IEEE Transactions on Applied Superconductivity. 21 [3] (2011) 2643-2648 10.1109/tasc.2010.2100342
  6. Kazumasa Togano, Akiyoshi Matsumoto, Hiroaki Kumakura. Large Transport Critical Current Densities of Ag Sheathed (Ba,K)Fe2As2+Ag Superconducting Wires Fabricated by anEx-situPowder-in-Tube Process. Applied Physics Express. 4 [4] (2011) 043101 10.1143/apex.4.043101
2010
  1. A. Matsumoto, H. Kitaguchi, H. Kumakura. Superconducting properties of C-doped MgB2 thin film fabricated by the precursor and post-annealing method using the PLD process. Physica C: Superconductivity and its Applications. 470 [20] (2010) 1446-1448 10.1016/j.physc.2010.05.134
  2. J.H. Kim, A. Matsumoto, M. Maeda, Y. Yamada, K. Wada, K. Tachikawa, M. Rindfleisch, M. Tomsic, H. Kumakura. Influence of hot-pressing on MgB2/Nb/Monel wires. Physica C: Superconductivity and its Applications. 470 [20] (2010) 1426-1429 10.1016/j.physc.2010.05.129
  3. K Togano, J Hur, A Matsumoto, H Kumakura. Microstructures and critical currents of single- and multi-filamentary MgB2superconducting wires fabricated by an internal Mg diffusion process. Superconductor Science and Technology. 23 [8] (2010) 085002 10.1088/0953-2048/23/8/085002
  4. Kazumasa Togano, Akiyoshi Matsumoto, Hiroaki Kumakura. Synthesis of High-Density Polycrystalline (Ba, K)Fe2As2 Superconductor and Its Critical Properties. Journal of the Japan Institute of Metals. 74 [7] (2010) 453-459 10.2320/jinstmet.74.453
  5. Hiroaki Kumakura, Jah Mahn Hur, Kazumasa Togano, Akiyoshi Matsumoto, Hitoshi Wada, Kaoru Kimura. Fabrication and Superconducting Properties of Diffusion Processed 7-Core MgB2 Wires. Journal of the Japan Institute of Metals. 74 [7] (2010) 439-443 10.2320/jinstmet.74.439
  6. J H Kim, Yoon-Uk Heo, A Matsumoto, H Kumakura, M Rindfleisch, M Tomsic, S X Dou. Comparative study of mono- and multi-filament MgB2wires with different boron powders and malic acid addition. Superconductor Science and Technology. 23 [7] (2010) 075014 10.1088/0953-2048/23/7/075014
  7. A. Matsumoto, H. Kitaguchi, H. Kumakura, Y. Hikichi, T. Nakatsu, T. Hasegawa. The Developments of Bi2212 Round Wires with Different Nominal Composition Powders. Journal of the Japan Institute of Metals. 74 [7] (2010) 404-408 10.2320/jinstmet.74.404
  8. K Togano, A Matsumoto, H Kumakura. Critical properties of a dense polycrystalline (Ba, K)Fe2As2superconductor prepared by a combined process of melting and deformation. Superconductor Science and Technology. 23 [4] (2010) 045009 10.1088/0953-2048/23/4/045009
  9. H Yamada, M Igarashi, Y Nemoto, Y Yamada, K Tachikawa, H Kitaguchi, A Matsumoto, H Kumakura. Improvement of the critical current properties ofin situpowder-in-tube-processed MgB2tapes by hot pressing. Superconductor Science and Technology. 23 [4] (2010) 045030 10.1088/0953-2048/23/4/045030
2008
  1. Akiyoshi MATSUMOTO, Hideyuki YAMADA, Motohiro IGARASHI, Hitoshi KITAGUCHI, Hiroaki KUMAKURA. Grain Connectivity of MgB2 Tapes Fabricated by the PIT Method. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 43 [8] (2008) 317-322 10.2221/jcsj.43.317
  2. Anjana Asthana, A Matsumoto, H Kitaguchi, Y Matsui, T Hara, K Watanabe, H Yamada, N Uchiyama, H Kumakura. Structural–microstructural characteristics and its correlations with the superconducting properties ofin situPIT-processed MgB2tapes with ethyltoluene and SiC powder added. Superconductor Science and Technology. 21 [11] (2008) 115013 10.1088/0953-2048/21/11/115013
  3. Zon Mori, Toshiya Doi, Daishi Kawabata, Ken-ichi Ogata, Ken-ichiro Takahashi, Akiyoshi Matsumoto, Hitoshi Kitaguchi, Yoshinori Hakuraku. Growth of bi-axially textured Bi2Sr2Ca1Cu2O8+δ (2212) thin films on SrTiO3 substrate by sputtering method. Physica C: Superconductivity and its Applications. 468 [14] (2008) 1060-1063 10.1016/j.physc.2008.05.151
  4. A Matsumoto, H Kitaguchi, H Kumakura. Superconducting properties of MgB2/Fe tape heavily doped with nanosized SiC. Superconductor Science and Technology. 21 [6] (2008) 065007 10.1088/0953-2048/21/6/065007
  5. Masazumi HIRAKAWA, Hideyuki YAMADA, Hiroaki KUMAKURA, Akiyoshi MATSUMOTO, Hitoshi KITAGUCHI. Fabrication and Critical Current Properties of MgB2 Tapes using Nanometer-sized Mg Powder. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 39 [4] (2008) 144-147 10.2221/jcsj.39.144
  6. J M Hur, K Togano, A Matsumoto, H Kumakura, H Wada, K Kimura. Fabrication of high-performance MgB2 wires by an internal Mg diffusion process. Superconductor Science and Technology. 21 [3] (2008) 032001 10.1088/0953-2048/21/3/032001
  7. MATSUMOTO, Akiyoshi, KOBAYASHI, Yuki, TAKAHASHI, Kenichiro, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi. MgB2 Thin Films Fabricated by a Precursor and Post-annealing Method Have a High Jc in High Magnetic Fields. Applied Physics Express. 1 [2] (2008) 021702-1-021702-3
2007
  1. Akiyoshi Matsumoto, Hiroaki Kumakura. Recent Developments and Future Prospect of MgB2 Wires and Tapes. Journal of the Japan Institute of Metals. 71 [11] (2007) 928-933 10.2320/jinstmet.71.928
  2. Y. Zhu, A. Matsumoto, B. J. Senkowicz, H. Kumakura, H. Kitaguchi, M. C. Jewell, E. E. Hellstrom, D. C. Larbalestier, P. M. Voyles. Microstructures of SiC nanoparticle-doped MgB2∕Fe tapes. Journal of Applied Physics. 102 [1] (2007) 013913 10.1063/1.2750409
  3. H Yamada, N Uchiyama, A Matsumoto, H Kitaguchi, H Kumakura. The excellent superconducting properties of in situ powder-in-tube processed MgB2 tapes with both ethyltoluene and SiC powder added. Superconductor Science and Technology. 20 [6] (2007) L30-L33 10.1088/0953-2048/20/6/l02
  4. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, KITAGUCHI, Hitoshi. Fabrication and properties of powder-in-tube-processed MgB2 tape conductors. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS. 456 [1-2,1] (2007) 196-202
  5. Takeshi YOSHIDOME, Harini SOSIATI, Satoshi HATA, Noriyuki KUWANO, Akiyoshi MATSUMOTO, Hitoshi KITAGUCHI, Hiroaki KUMAKURA. TEM Analysis of Microstructures in Nano-sized SiC-doped MgB<sub>2</sub> Tapes. TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 41 [11] (2007) 510-518 10.2221/jcsj.41.510
  6. Hideyuki YAMADA, Nobuhito UCHIYAMA, Hiroaki KUMAKURA, Hitoshi KITAGUCHI, Akiyoshi MATSUMOTO. Fabrication and Evaluation of Superconducting Properties to Improve the Jc of MgB2 tapes. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 41 [11] (2007) 505-509 10.2221/jcsj.41.505
  7. H Yamada, N Uchiyama, A Matsumoto, H Kitaguchi, H Kumakura. Superconducting properties of in situ powder-in-tube-processed MgB2 tapes fabricated with sub-micrometre Mg powder prepared by an arc-plasma method. Superconductor Science and Technology. 20 [1] (2007) 1-4 10.1088/0953-2048/20/1/001
2006
  1. A. Matsumoto, H. Kumakura, H. Kitaguchi, B. J. Senkowicz, M. C. Jewell, E. E. Hellstrom, Y. Zhu, P. M. Voyles, D. C. Larbalestier. Evaluation of connectivity, flux pinning, and upper critical field contributions to the critical current density of bulk pure and SiC-alloyed MgB2. Applied Physics Letters. 89 [13] (2006) 132508 10.1063/1.2357027
  2. S Hata, T Yoshidome, H Sosiati, Y Tomokiyo, N Kuwano, A Matsumoto, H Kitaguchi, H Kumakura. Microstructures of MgB2/Fe tapes fabricated by an in situ powder-in-tube method using MgH2 as a precursor powder. Superconductor Science and Technology. 19 [2] (2006) 161-168 10.1088/0953-2048/19/2/002
2005
  1. H. Kumakura, A. Matsumoto, H. Kitaguchi, H. Hatakeyama. Critical Current Densities of Powder-In-Tube (PIT)-Processed MgB<SUB>2</SUB> Tapes. MATERIALS TRANSACTIONS. 45 [10] (2005) 3056-3059 10.2320/matertrans.45.3056
  2. Masaki Sumida, Akiyoshi Matsumoto, Hiroaki Kumakura. Effect of Cooling Process on Critical Current Density of Bi-2223/Ag Superconductive Tapes Prepared by Dip-Coating. MATERIALS TRANSACTIONS. 44 [9] (2005) 1872-1876 10.2320/matertrans.44.1872
  3. Satoshi Hata, Harini Sosiati, Yoshitsugu Tomokiyo, Noriyuki Kuwano, Akiyoshi Matsumoto, Masao Fukutomi, Hitoshi Kitaguchi, Kazunori Komori, Hiroaki Kumakura. Microstructure of MgB2 Films Deposited on YSZ/Hastelloy Substrate. Journal of the Japan Institute of Metals. 68 [9] (2005) 648-655 10.2320/jinstmet.68.648
  4. Akiyoshi Matsumoto, Hiroaki Kumakura, Hitoshi Kitaguchi, Junnichi Nishioka, Takayo Hasegawa. The Microstructure and Jc Values of Bi-2212 Multifilamentary Wires. Journal of the Japan Institute of Metals. 68 [9] (2005) 656-660 10.2320/jinstmet.68.656
  5. H Sosiati, S Hata, N Kuwano, Y Tomokiyo, H Kitaguchi, T Doi, H Yamamoto, A Matsumoto, K Saitoh, H Kumakura. Relationship between microstructure and Jc property in MgB2/α-Al2O3 film fabricated by in situ electron beam evaporation. Superconductor Science and Technology. 18 [10] (2005) 1275-1279 10.1088/0953-2048/18/10/005
  6. Shinpei NAKAGIRI, Masahiro IINO, Satoru MURASE, Nozomu NANATO, Hiroaki KUMAKURA, Akiyoshi MATSUMOTO. Self-field Loss in AC Transport Current Loss of MgB2 Superconducting Composites. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 38 [11] (2005) 615-622 10.2221/jcsj.38.615
  7. Akiyoshi MATSUMOTO, Hiroki FUJII, Hideo HATAKEYAMA, Hitoshi KITAGUCHI, Hiroaki KUMAKURA. The Development of the MgB2 Tapes and Wires Using the PIT Method-The development of high JC tapes-. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 38 [11] (2005) 609-614 10.2221/jcsj.38.609
  8. Masao FUKUTOMI, Kazunori KOMORI, Kyoko KAWAGISHI, Yoshihiko TAKANO, Akiyoshi MATSUMOTO, Hitoshi KITAGUCHI, Hiroaki KUMAKURA, Kazumasa TOGANO. Synthesis and Properties of Polycrystalline MgB2 Thin Films by a Precursor Post-annealing Process. TEION KOGAKU (Journal of the Cryogenic Society of Japan). 38 [11] (2005) 629-634 10.2221/jcsj.38.629
  9. H Kumakura, H Kitaguchi, A Matsumoto, H Yamada. Upper critical field, irreversibility field, and critical current density of powder-in-tube-processed MgB2/Fe tapes. Superconductor Science and Technology. 18 [8] (2005) 1042-1046 10.1088/0953-2048/18/8/003
  10. H Kumakura, H Kitaguchi, A Matsumoto, H Yamada, M Hirakawa, K Tachikawa. Fabrication of A15-type superconducting tape conductors by applying theex situpowder-in-tube method. Superconductor Science and Technology. 18 [1] (2005) 147-151 10.1088/0953-2048/18/1/023
2004
  1. H. Kitaguchi, A. Matsumoto, H. Kumakura, T. Doi, H. Yamamoto, K. Saitoh, H. Sosiati, S. Hata. MgB2 films with very high critical current densities due to strong grain boundary pinning. Applied Physics Letters. 85 [14] (2004) 2842-2844 10.1063/1.1805195
  2. H. Takeya, A. Matsumoto, K. Hirata, Y.S. Sung, K. Togano. Superconducting phase in niobium diborides prepared by combustion synthesis. Physica C: Superconductivity. 412-414 (2004) 111-114 10.1016/j.physc.2003.12.028
  3. Harini Sosiati, S. Hata, N. Kuwano, Y. Tomokiyo, A. Matsumoto, M. Fukutomi, H. Kitaguchi, K. Komori, H. Kumakura. Electron microscopy of MgB2 thin film on YSZ-buffered Hastelloy. Physica C: Superconductivity. 412-414 (2004) 1376-1382 10.1016/j.physc.2004.01.168
  4. H Kitaguchi, A Matsumoto, H Hatakeyama, H Kumakura. High temperature performance of MgB2powder-in-tube composite tapes. Superconductor Science and Technology. 17 [9] (2004) S486-S489 10.1088/0953-2048/17/9/005
  5. A Matsumoto, H Kitaguchi, H Kumakura, J Nishioka, T Hasegawa. Improvement of the microstructure and critical current densities of Bi-2212 round wires with a precisely controlled heat treatment. Superconductor Science and Technology. 17 [8] (2004) 989-992 10.1088/0953-2048/17/8/006
  6. H. Kumakura, H. Kitaguchi, A. Matsumoto, H. Hatakeyama. Upper critical fields of powder-in-tube-processed MgB2/Fe tape conductors. Applied Physics Letters. 84 [18] (2004) 3669-3671 10.1063/1.1738947
  7. A Matsumoto, H Kumakura, H Kitaguchi, H Hatakeyama. Effect of impurity additions on the microstructures and superconducting properties ofin situ-processed MgB2tapes. Superconductor Science and Technology. 17 [5] (2004) S319-S323 10.1088/0953-2048/17/5/045
  8. H. Yamada, M. Hirakawa, H. Kumakura, A. Matsumoto, H. Kitaguchi. Critical current densities of powder-in-tube MgB2 tapes fabricated with nanometer-size Mg powder. Applied Physics Letters. 84 [10] (2004) 1728-1730 10.1063/1.1667263
  9. T Nakane, A Matsumoto, H Kitaguchi, H Kumakura. Performance tuning and improvement ofJc–Bcharacteristics for Bi-2212/Ag tapes by controlling the excess oxygen content. Superconductor Science and Technology. 17 [1] (2004) 29-34 10.1088/0953-2048/17/1/005
  10. H. Kitaguchi, A. Matsumoto, H. Hatakeyama, H. Kumakura. V–I characteristics of MgB2 PIT composite tapes: n-values under strain, in high fields, or at high temperatures. Physica C: Superconductivity. 401 [1-4] (2004) 246-250 10.1016/j.physc.2003.09.047

Books TSV

Proceedings TSV

2013
  1. T. Kajihara, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, T. Mochiku, H. Kitaguchi, T. Doi. Formation of Bi, Pb-2223 and Microstructural Evolution in Pb-Ca-Cu Deposited Bi-2212(001) Single Crystal by Heat Treatment. PHYSICS PROCEDIA 2013, 69-72
2012
  1. Y. Yamada, M. Kanazawa, T. Ohno, K. Tachikawa, K. Kajikawa, T. Inoue, I. Aoki, A. Matsumoto, H. Kumakura. PIT Processed ${\rm MgB}_{2}$ Thin Wires Sheathed With Stainless Steel. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2012, 6200304-6200304
  2. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, TOGANO, Kazumasa, Ryo Teranishi, KIYOSHI, Tsukasa. Characterization of MgB2 Superconductive wire fabricated with IMD Process by Analytical TEM. Proc. the 10th Asia-Pacific Microscopy Conference(AMPC10) 2012, 699-1-699-2
2011
  1. Hiroaki Kumakura, Jahmahn Hur, Kazumasa Togano, Akiyoshi Matsumoto, Hitoshi Wada, Kaoru Kimura. Superconducting Properties of Diffusion-Processed Multifilamentary ${\rm MgB}_{2}$ Wires. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2011, 2643-2648
  2. Y. Shimada, Y. Kubota, S. Hata, K. Ikeda, H. Nakashima, A. Matsumoto, K. Togano, H. Kumakura. Electron microscopy observations of MgB2 wire prepared by an internal Mg diffusion method. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2011, 1137-1141
  3. Y. Shimada, Y.kubota, S. Hata, ken-ichi ikeda, E. Nakashima, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, HUR, Jahmahn, KUMAKURA, Hiroaki. Microstructure in high-density MgB2 wires prepared by an internal Mg diffusion method. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2011, 2668-2671
  4. X.F. Pan, A. Matsumoto, H. Kumakura, C.H. Cheng, Y. Zhao. Cooperative doping effects of Ti and nano-SiC on transport critical current density and grain connectivity of in situ MgB2 tapes. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2011, 1128-1132
  5. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Y. Hikichi, T. Nakatsu, T. Hasegawa. Microstructure and critical current properties of Bi-2212 round wires fabricated with different nominal compositions. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2011, 2800-2803
  6. S.J. Ye, A. Matsumoto, K. Togano, H. Kumakura. Enhancement of the critical current density of internal Mg diffusion processed MgB2 wires by the addition of both SiC and liquid aromatic hydrocarbon. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2011, 1133-1136
2010
  1. KIM, Jung Ho, S. X. Dou, MATSUMOTO, Akiyoshi, CHOI, Seyong, KIYOSHI, Tsukasa, KUMAKURA, Hiroaki. CORRELATION BETWEEN CRITICAL CURRENT DENSITY AND n-VALUE IN THE MgB2 SUPERCONDUCTOR WIRES. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2010, 1207-1210
  2. A. Matsumoto, H. Kitaguchi, H. Kumakura. Superconducting properties of C-doped MgB2 thin film fabricated by the precursor and post-annealing method using the PLD process. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2010, 1446-1448
  3. J.H. Kim, A. Matsumoto, M. Maeda, Y. Yamada, K. Wada, K. Tachikawa, M. Rindfleisch, M. Tomsic, H. Kumakura. Influence of hot-pressing on MgB2/Nb/Monel wires. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2010, 1426-1429
2008
  1. N. Yuzuriha, H. Sosiati, S.Hata, N. Kuwano, H. Yamada, N. Uchiyama, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Transmission electron microscopy analysis of C4H4S-doped MgB2 tapes. JOURNAL OF PHYSICS: CONFERENCE SERIES 2008, 012277-1-012277-6
2005
  1. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, YAMADA, Hideyuki, 平川正澄, 太刀川恭治. Fabrication and superconducting properties of ex-situ PIT processed A15 type tape conductors. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3544-3547
  2. J.H. Kim, J. Joo, S. Choi, W. Nah, H.S. Ha, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KOIZUMI, Tsutomu, SUGANO, MICHINAKA, KIYOSHI, Tsukasa. Characteristics of critical current and index n of Bi-2223/Ag tape up to 30T at 4.2K. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 2470-2473
  3. KOIZUMI, Tsutomu, 長谷川隆代, 西岡淳一, 引地康雄, 中津, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, 長屋重夫. Bi-2212 phase formation process in multifilamentary Bi-2212/Ag wires and tapes. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 2538-2541
  4. 波多聰, H. Sosiati, 桑野範之, 友清芳二, MATSUMOTO, Akiyoshi, FUKUTOMI, Masao, KITAGUCHI, Hitoshi, KOMORI, Kazunori, KUMAKURA, Hiroaki. Effects of heat treatments on microstructure formation in MgB2/YSZ/Hastelloy film. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3238-3241
  5. YAMADA, Hideyuki, 平川正澄, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. Superconducting properties of powder-in-tube MgB2 tapes prepared with fine powders. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3337-3340
  6. NAKANE, Takayuki, ISOBE, Masaaki, MOCHIKU, Takashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Effect of high oxygen pressure post-annealing on the Jc-B characteristics of Bi-2212/Ag tapes. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 2542-2545
  7. Jung Ho kim, Jun Hyung Lim, Jinho Joo, Wansoo Nah, hong-Soo Ha, Hong-Soo Ha, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, SUGANO, MICHINAKA, KIYOSHI, Tsukasa. Magnetic field dependence of Y-123 coated conductor and Bi2223 tape at 4.2K. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2005, 1103-1107
  8. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO, YAMADA, Hideyuki, 平川正澄. The Microstructures and Superconducting Properties of MgB2 Tapes Processed In-situ by a Ball-Milling Method. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3333-3336
  9. KITAGUCHI, Hitoshi, 土井俊哉, KOBAYASHI, Yuki, MATSUMOTO, Akiyoshi, Harini Sosiati, 波多聰, FUKUTOMI, Masao, KUMAKURA, Hiroaki. Properties of MgB2 Films with Very High Transport Critical Current Densities. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3313-3316
  10. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. Improved superconducting properties of in-situ PIT-processed MgB2 tapes. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2005, 3184-3187
  11. NAKANE, Takayuki, FUJII, Hiroki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. The improvement of in-situ powder in tube MgB2 tapes by mixing MgB2 to the starting powder of MgH2 and B. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 2005, 1238-1243

Presentations TSV

2018
  1. S. Yasuyama, T. Miyajima, R. Teranishi, K. Kaneko, V. Petrykin, S. Lee, S. Awaji, T. Okada, MATSUMOTO, Akiyoshi. Influence of oxygen diffusion path on superconducting joint property of GdBa2Cu3O7-δ coated conductor with additional deposited layer. ISS2018. 2018
  2. T. Iwanaka, T. Kusunoki, MATSUMOTO, Akiyoshi, S. Horii, T. Doi. Mgの加熱蒸着とBのスパッタリングによるMgB2薄膜の新製法. 第97回低温工学・超電導学会研究発表会. 2018
  3. R. Teranishi, Tomohiro Miyajima, Shotaro Yasuyama, Yukio Sato, Kenji Kaneko, Valery Petrykin, Sergey Lee, Satoshi Awaji, MATSUMOTO, Akiyoshi. Superconducting joint of REBa2Cu3Oy coated conductors by crystallization of additionally deposited precursor films. ASC2018. 2018
  4. 林真理子, 荒木猛司, 石井宏尚, 西島元, 松本 明善, 加藤丈晴, 横江大作, 吉田竜視. Introduction of atom-replaced pins into Y-based superconductor - Single-crystalline perovskite structure including both PrBa2Cu3O7-x and YBa2Cu3O7-y -. Applied Superconductivity Conference 2018. 2018
  5. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Y. Shimada, S. Hata. The fabrication of Bi,Pb-2223 thin films from multi-layered precursor films using sputtering method. ASC2018. 2018
  6. R. Teranishi, S. Awaji, V. Petrykin, S. Lee, T. Miyajima, S. Yasuyama, Y. Sato, K. Kaneko, MATSUMOTO, Akiyoshi. Fabrication of superconducting joint for GdBa2Cu3Oy coated conductors. ISMMM2018. 2018
  7. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Y. Ichiki, H. Tanaka. Superconducting joints of MgB2 wires fabricated by direct method. ICEC7/ICMC2018. 2018
  8. MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. 高Jc化を目指した鉄系超伝導線材の開発. 鉄系高温超伝導体発見10周年記念合同シンポジウム. 2018
  9. T. Miyajima, R. Teranishi, Y. Sato, K. Kaneko, M. Nakamura, V. Petrykin, S. Lee, S. Awaji, MATSUMOTO, Akiyoshi. GdBa2Cu3Oy超伝導薄膜の接続界面の微構造解析. 第74回学術講演会日本顕微鏡学会学術講演会. 2018
  10. M. Kodama, H. Kotaki, H. Tanaka, NISHIJIMA, Gen, MATSUMOTO, Akiyoshi, A. Yamamoto, J. Shimoyama. メカニカルミリング法によるMgB2単芯線材におけるカセットロール加工とコロネン添加の効果. 2018 年度・春季(第96回)低温工学・超電導学会. 2018
  11. MATSUMOTO, Akiyoshi. Recent development of PIT and IMD processed MgB2 wires. ICSM2018. 2018
2017
  1. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, MAEDA, Minoru, Y. Ichiki, H. Tanaka. IMD-MgB2線材における超伝導接続. 2017年度秋季低温工学・超電導学会. 2017
  2. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KIKUCHI, Akihiro, KUMAKURA, Hiroaki. SUS/Ag-Sn合金二重被覆材を用いたPIT-(Ba,K)Fe2As2テープの作製条件. 2017年度秋季低温工学・超電導学会. 2017
  3. MAEDA, Minoru, TAKIGAWA, Hiroyuki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. スエージング加工したMgB2線材の輸送臨界電流特性に与えるリンゴ酸添加の影響. 2017年度秋季低温工学・超電導学会. 2017
  4. KUMAKURA, Hiroaki, SAITO, Yusuke, Masato, MATSUMOTO, Akiyoshi. Improvement in microstructure and critical current density of PIT MgB2 wires by cold working with a swaging machine. 13th European Conference on Applied Superconductivity, EUCAS2017. 2017
  5. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toru Kuwahara, Syuma Sakai, Tetsuro Sueyoshi, Takanori Fujiyoshi. Flux pinning properties of Hf and Zr-doped Bi,Pb-2223 thin films with columnar defects. EUCAS2017. 2017
  6. Takumu IWANAKA, Hiroshi KOTAKI, Toshiaki KUSUNOKI, MATSUMOTO, Akiyoshi, Shigeru HORII, Toshiya DOI. Jc-B-T properties of 10 &#61549;m-thick MgB2 film on 40&#61549;m-thick Cu tape. EUCAS2017. 2017
  7. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toru Kuwahara, Syuma Sakai, Tetsuro Sueyoshi, Takanori Fujiyoshi. Microstructure and superconducting properties of impurities doped Bi,Pb-2223 thin films fabricated by sputtering method and post-annealing method. EUCAS2017. 2017
  8. KUMAKURA, Hiroaki, SAITO, Yusuke, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, Masato, TOGANO, Kazumasa. Development of Power-In-Tube Processed MgB2 and (Ba,K)Fe2As2 Wires in NIMS. IUMRS-ICAM2017. 2017
  9. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Superconducting joints made with internal Mg diffusion(IMD) processed MgB2 wires. MT25. 2017
  10. MATSUMOTO, Akiyoshi, Satoshi Hata, KITAGUCHI, Hitoshi, Daiki Fukuda, Hikaru Saito, Hideharu Nakashima, Yusuke Shimada. Microstructure and superconducting properties of bi,Pb-2223 thin films fabricated from alternately layered Bi,Pb-2212/Pb-Ca-Cu-O thin films. CEC/ICMC2017. 2017
  11. KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi. High-Tc superconductors for power cables. Ishikari International Forum of Future Energy and Transmission. 2017
  12. T. Iwanaka, T. Kusunoki, H. Kotaki, MATSUMOTO, Akiyoshi, S. Horii, T. Doi. Cuテープ上に作製したMgB2薄膜のJc-B-T特性. 2017年度春季低温工学・超電導学会. 2017
  13. S. Hata, D. Fukuda, Hikaru Saito, Hideharu Nakashima, Y. Shimada, MATSUMOTO, Akiyoshi. SrTiO3基板上に作製したBi,Pb-2212/Pb-Ca-Cu-O積層膜の微細構造とその熱処理過程. 日本金属学会2017年春期(第160回)講演大会. 2017
2016
  1. KUMAKURA, Hiroaki, Shujun Ye, Zhaoshun Gao, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, Kohei Higashikawa, Takanobu Kiss. Recent development of MgB2 wires and (Ba,K)Fe2As2 tapes in NIMS. 29th International Superconductivity Symposium (ISS2016). 2016
  2. Hideki TANAKA, Takaaki SUZUKI, Motomune KODAMA, Masayoshi INOUE, Kouhei HIGASHIKAWA, Takanobu KISU, MATSUMOTO, Akiyoshi, NISHIJIMA, Gen. Longitudinal homogeneity of multifilament MgB2 wire. 1st Asian ICMC-CSSJ50. 2016
  3. Toshiaki KUSUNOKI, Hiroyuki YAMAMOTO, Motomune KODAMA, Hiroshi KOTAKI, Hideki TANAKA, NISHIJIMA, Gen, MATSUMOTO, Akiyoshi, Shigeru HORII, Toshiya DOI. Superior Jc-B-T characteristics of 10 &#61549;m-thick MgB2 film on Cu plate and tape. 1st Asian ICMC - CSSJ50. 2016
  4. KODAMA Motomune, YAMAMOTO Hiroyuki, TANAKA Hideki, OKAMOTO Kazutaka, NISHIJIMA, Gen, MATSUMOTO, Akiyoshi, YAMAMOTO Akiyasu, SHIMOYAMA Jun-ichi, KISHIO Kohji. High Critical Current Density in Dense MgB2 Wire. Applied Superconductivity Conference 2016. 2016
  5. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KIKUCHI, Akihiro, KUMAKURA, Hiroaki. Enhancent of critical current densties of ex situ PIT (Ba,K)Fe2As2 tapes by using double sheaths. 2016 Applied Superconductivity Conference . 2016
  6. KUMAKURA, Hiroaki, SAITO, Yusuke, NITTA, Ryuji, YE, Shujun, MATSUMOTO, Akiyoshi. Influence of Mg particle size and mechanical working mode on the microstructure and critical currents of in situ PIT MgB2 wires. 2016 Applied Superconductivity Conference . 2016
  7. Hiroshi Takahara, Kohei Higashikawa, Masayoshi Inoue, Shyam Mohan, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Takanobu Kiss. Non-destructive characterization of local Ic distribution and microstructure in a IMD-processed MgB2 round wire by use of hybrid microscopy: scanning Hall-probe microscopy and X-ray tomography. 2016 Applied Superconductivity Conference. 2016
  8. S.Hata, D. Fukuda, H. Saito, H. Nakashima, Y. Shimada, MATSUMOTO, Akiyoshi. スパッタ法で作製した(Bi,Pb)-2212/Pb-Ca-Cu-O積層膜のナノ構造とその熱処理過程. 低温工学・超電導学会. 2016
  9. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, Kohei Higashikawa, Takanobu Kiss. High critical current properties of internal Mg diffusion(IMD) processed MgB2 wires. International Conference on Superconductivity and Magnetism. 2016
  10. KUMAKURA, Hiroaki, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KIKUCHI, Akihiro, TOGANO, Kazumasa. Recent development of PIT processed (Ba,K)Fe2As2 tapes. 5th International Conference on Superconductivity and Magnetism. 2016
  11. KITAGUCHI, Hitoshi, MIYOSHI, Yasuyuki, NISHIJIMA, Gen, MATSUMOTO, Akiyoshi. High field performance of high strength Bi-2223 HTS tape at 4.2 K. MEM2016. 2016
  12. KUMAKURA, Hiroaki, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Ex situ PIT法による(Ba(Sr),K)Fe2As2線材の臨界電流特性. 2016年 第63回応用物理学会春季学術講演会. 2016
2015
  1. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KIKUCHI, Akihiro, KUMAKURA, Hiroaki. Ag-Sn合金被覆材およびSUS/(Ag-Sn)二重被覆材を用いたPIT-(Ba,K)Fe2As2線材の作製. 第92回低温工学・超電導学会研究発表会. 2015
  2. GAO, Zhaoshun, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KIKUCHI, Akihiro, KUMAKURA, Hiroaki. High performance double sheathed Ba-122 tapes. 27th International Symposium on Superconductivity. 2015
  3. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TAKIGAWA, Hiroyuki. Critical currents in MgB2 wires. International Workshop on Cooling System for HTS Applications. 2015
  4. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TAKIGAWA, Hiroyuki. Development of internal Mg diffusion (IMD)-processed MgB2 superconducting wires−towards long-length wire fabrications. European Conf. on Applied Superconductivity(EUCAS2015). 2015
  5. YE, Shujun, HASEGAWA, Akira, MATSUMOTO, Akiyoshi, TAKIGAWA, Hiroyuki, KUMAKURA, Hiroaki. High Jc MgB2 wires fabricated by using B powder treated with coronene (C24H12). European Conf. on Applied Superconductivity(EUCAS2015) . 2015
  6. YE, Shujun, HASEGAWA, Akira, MATSUMOTO, Akiyoshi, NISHIJIMA, Gen, TAKIGAWA, Hiroyuki, KUMAKURA, Hiroaki. The development of MgB2 superconducting wires fabricated with an internal Mg diffusion (IMD) process. 第1回 材料研究会シンポジウム/ 第3回 液体水素冷却 MgB2超電導線. 2015
  7. YE, Shujun, HASEGAWA, Akira, TAKIGAWA, Hiroyuki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. コロネン(C24H12)を用いて処理した硼素粉末により作製した高Jc MgB2線材. 2015春低温工学. 2015
  8. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Ag-Sn合金を被覆材とした高Jc PIT Ba-122テープ線材の作製. 2015年度春季低温工学・超伝導学会. 2015
  9. KUMAKURA, Hiroaki, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Development of PIT processed Ba1-xKxFe2As2/Ag tapes by applying conventional cold mechanical deformations. 2015 MRS Spring Meeting & Exhibit. 2015
  10. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, HASEGAWA, Akira. コロネン熱分解でカーボンコートした硼素粉末により作製したMgB2線材. 第62回応用物理学会春季学術講演会. 2015
2014
  1. YE, Shujun, HASEGAWA, Akira, ZHANG, Yunchao, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. Coronene熱分解によるナノカーボンコート硼素粉末を用いて作製した高性能MgB2線材. 第90回低温工学・超電導学会. 2014
  2. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toshiya Doi, D. Fukuda, Y. Shimada, S. Hata, H. Nakashima. 積層前駆体膜から作製したBi,Pb-2223超伝導薄膜の超伝導特性. 秋季低温工学・超電導学会. 2014
  3. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, D. Fukuda, Yusuke Shimada, Satoshi Hata. 積層前駆体膜を用いたBi,Pb-2223 超伝導薄膜. 第75回応用物理学会秋季学術講演会. 2014
  4. KUMAKURA, Hiroaki, NITTA, Ryuji, YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi. PIT法MgB2線材の組織と臨界電流特性に及ぼすMg粉末粒径の影響. 2014年第75回応用物理学会秋季学術講演会. 2014
  5. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. Effect of SiC doping on improvement of superconductive properties of MgB2 wires studied by TEM. The 18th International Microscopy Conference (IMC2014). 2014
  6. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Fabrication of Iron-based Superconducting Tapes with High Transport Critical Current Densities. IUMRS-ICA2014. 2014
  7. KUMAKURA, Hiroaki, YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi. Recent development of internal Mg diffusion processed MgB2 wires. IUMRS-ICAM 2014. 2014
  8. Y. Shimada, T. Kajihara, S. Hata, K. Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi. Electron microscopy observation of heat-treatment behavior in Bi,Pb-2223 films prepared by RF sputtering. ASC2014. 2014
  9. GAO, Zhaoshun, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. High critical current density in Ba1-xKxFe2As2/Ag tapes prepared by conventional cold mechanical deformation. ASC2014. 2014
  10. KUMAKURA, Hiroaki, YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi. The effect of C24H12-coating on B powder for powder-in-tube(PIT) and internal Mg diffusion(IMD) processed MgB2 wires. Applied Superconductivity Conference 2014. 2014
  11. K. Higashikawa, A. Yamamoto, M. Inoue, T. Kiss, YE, Shujun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Clarifications of Performance Limiting Factors in MgB2 Wires by the Combination of Magnetic Microscopy and Scanning Electron Microscopy. Applied Superconductivity Conference2014. 2014
  12. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, T. Izumi, Y. Hakuraku, T. Kajihara, Y. Shimada, S. Hata. Annealing effect of Bi,Pb-2223 thin film fabricated by sputtering method. ASC2014. 2014
  13. YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. 多環芳香族炭化水素coronene添加によるMgB2超伝導線材の微細組織及び高臨界電流密度メカニズムの解析. 2014 年度春季低温工学・超電導学会. 2014
  14. GAO, Zhaoshun, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. High magnetic field properties of Ba122 tapes by conventional cold mechanical deformation. 2014年度春季低温工学・超電導学会. 2014
  15. Kohei Higashikawa, Masayoshi Inoue, Takanobu Kiss, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Michael Sumption, Matthew Rindfleisch, Michael Tomsic. 磁性シース材を有するMgB2線材の臨界電流値の非通電評価手法. 2014年度春季低温工学・超電導学会. 2014
  16. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. 実用レベルの輸送臨界電流密度をもつPIT-Ag/(Ba,K)Fe2As2テープの作製. 第61回応用物理学会春季学術講演会. 2014
  17. KUMAKURA, Hiroaki, YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi. MgB2線材における不純物添加によるボロンサイトの炭素置換効果. 第61回応用物理学会春季学術講演会. 2014
  18. MATSUMOTO, Akiyoshi, GAO, Zhaoshun, TOGANO, Kazumasa, KUMAKURA, Hiroaki. PIT-Ag/(Sr,K)Fe2As2テープ線材の高Jc化. 2014年 第61回応用物理学会春季学術講演会. 2014
  19. MATSUMOTO, Akiyoshi. 超伝導材料のナノ組織制御と高性能化. ナノテクノロジー研究支援拠点設立記念講演会. 2014
  20. KUMAKURA, Hiroaki, YE, Shujun, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Development of MgB2 and (Ba(Sr),K)Fe2As2 wires. Electronic Materials and Applications 2014 (EMA 2014). 2014
2013
  1. YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, OHMURA, Takahito, KUMAKURA, Hiroaki. IMD法とPIT法をミックスした方法による高臨界電流密度MgB2線材の作製. 第88回低温工学・超電導学会. 2013
  2. NITTA, Ryuji, MATSUMOTO, Akiyoshi, YE, Shujun, KUMAKURA, Hiroaki. In-situ PIT法で作製したMgB2線材におけるMg粉末粒径の組織と臨界電流に及ぼす影響. 2013年度秋季低温工学・超電導学会. 2013
  3. GAO, Zhaoshun, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. 冷間加工を適用した高臨界電流密度Ba-122/Agテープの作製. 第88回2013年度秋季低温工学・超電導学会. 2013
  4. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, S. Hata. Pbを含む高温超伝導相Bi,Pb-2223薄膜の組織と超伝導特性. 第88回低温工学・超電導学会. 2013
  5. T. Yoshimura, R. Kuwabara, T. Sueyoshi, T. Fujiyoshi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. 2段階のアニール処理を施した(Bi,Pb)2Sr2Ca2Cu3Oy超伝導薄膜への重イオン照射による柱状欠陥の導入. 第88回低温工学・超電導学会. 2013
  6. YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, OHMURA, Takahito, KUMAKURA, Hiroaki. High-performance MgB2 superconducting wires for use under liquid-helium-free conditions fabricated using internal Mg diffusion process. The 26th International Superconductivity Symposium (ISS2013). 2013
  7. ZHANG, Yunchao, YE, Shujun, MATSUMOTO, Akiyoshi, TAKANO, Yoshihiko, KUMAKURA, Hiroaki. ENHANCEMENT OF THE CRITICAL CURRENT DENCITY OF IN-SITU POWDER-IN-TUBE PROCESSED MgB2 WIRES BY HYDROCARBON ADDITIONS. ISS2013. 2013
  8. KUMAKURA, Hiroaki, YE, Shujun, ZHANG, Yunchao, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Development of high performance MgB2 wires. 7th Asian Conference on Applied Superconductivity and Cryogenics. 2013
  9. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, OHMURA, Takahito, KUMAKURA, Hiroaki. Distribution of MgO Nano-inclusions in Superconductor MgB2 Wires Fabricated with Internal Magnesium Diffusion Process Observed b. The 1st East-Asia Microscopy Conference (EAMC-1). 2013
  10. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toshiya Doi, Satoshi Hata. 積層薄膜前駆体膜を用いたBi,Pb-2223超伝導薄膜の作製. 第74回応用物理学会秋季学術講演会. 2013
  11. T. Fujiyoshi, T. Sueyoshi, H Yoshimura, K. Tsuchiya, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. 柱状欠陥を導入したBi,Pb2223 薄膜の臨界電流密度. 2013年 第74回応用物理学会秋季学術講演会. 2013
  12. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toshiya Doi, Takato Kajihara, Satoshi Hata. Enhancement of Jc values Bi,Pb-2223 thin film fabricated by RF sputtering and post -annealing. EUCAS2013. 2013
  13. YE, Shujun, HASEGAWA, Akira, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, ZHANG, Yunchao, TAKEGUCHI, Masaki, Ryo TERANISHI , OHMURA, Takahito, KUMAKURA, Hiroaki. Improvement of critical current properties of internal Mg diffusion (IMD)-processed MgB2 wires. EUCAS2013 - European Conference on Applied Superconductivity. 2013
  14. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, OHMURA, Takahito, KUMAKURA, Hiroaki. Distribution of MgO nanocrystals in superconductor MgB2 wires observed with TEM tomography. Microscopy Conference (MC) 2013. 2013
  15. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, S. Hata. Fabrication of Bi,Pb-2223 thin film by sputtering method. 16th US-Japan workshop. 2013
  16. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Development of IMD processed MgB2 wires. 16th US-Japan Workshop on Advanced Superconductors. 2013
  17. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, T. Kajihara, S. Hata. The fabrication of Bi,Pb-2223 thin films from multi-layered precursor films. CEC-ICMC2013. 2013
  18. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, ZHANG, Yunchao, TOGANO, Kazumasa, KIYOSHI, Tsukasa. Improvement of critical current properties in internal Mg diffusion processed MgB2 wires. CEC-ICMC 2013. 2013
  19. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, TOGANO, Kazumasa, Ryo Teranishi. TEMトモグラフィーによりIMD法で製作したMgB2超伝導線材中ナノMgO結晶分布解析. 日本顕微鏡学会第69回学術講演会. 2013
  20. ZHANG, Yunchao, YE, Shujun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. In situ PIT法MgB2線材における不純物添加による臨界電流密度の改善. 2013年春季低温工学・超電導学会. 2013
  21. TOGANO, Kazumasa, GAO, Zhaoshun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. PIT法によるAg/(Ba,K)Fe2As2テープの作製と輸送Jc特性の改善. 2013年春季低温工学・超電導学会. 2013
  22. YE, Shujun, MATSUMOTO, Akiyoshi, ZHANG, Yunchao, TOGANO, Kazumasa, KUMAKURA, Hiroaki. 内部拡散法によるMgB2 線材の臨界電流特性及び微細組織. 2013年春季低温工学・超電導学会. 2013
  23. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, T. Kajihara, S. Hata. The fabrication of Bi,Pb-2223 superconducting thin films by multilayer thin film method. 2013 MRS spring meeting. 2013
  24. T. Fujiyoshi, T. Sueyoshi, T. Yoshimura, K. Tsuchiya, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. スパッタリング法で作製したBi,Pb2223薄膜の超伝導特性. 第60回応用物理学会春季学術講演会. 2013
  25. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Development of high performance MgB2 wires by internal Mg diffusion process. Electronic Materials and Applications 2013. 2013
2012
  1. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, S. Hata. High Tc and Jc of Bi,Pb-2223 thin film fabricated by sputtering method. ISS2012. 2012
  2. T. Kajihara, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, MOCHIKU, Takashi, T. Doi. Formation of Bi,Pb-2223 and microstructural evolution in Pb-Ca-Cu deposited Bi-2212(001) single crystal by heat treatment . ISS2012. 2012
  3. T. Kajihara, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, T. Doi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. スパッタ法により作製したBi,Pb-2223薄膜の微細組織と熱処理条件の関係. 2012年秋季低温工学・超電導学会. 2012
  4. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, T. Kajihara, S. Hata. 積層薄膜法によるPbを含む高温超伝導相Bi-2223薄膜の作製. 2012年秋季低温工学・超電導学会. 2012
  5. K. Tsuchiya, T. Yoshimura, T. Sueyoshi, T. Fujiyoshi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. スパッタリング法により作製したBi,Pb-2223薄膜の臨界電流密度. 2012年秋季低温工学・超電導学会. 2012
  6. Yutaka Yamada, Naoya Kaneda, Takahiro Ohno, kyoji Tachikawa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Mg Diffusion Processed MgB2 Wires Prepared by Hot Isostatic Pressing . 2012 Applied Superconductivity Conference. 2012
  7. B. Ni, W. Sun, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Labusch parameter and interaction distance in superconducting MgB2 bulks. ASC2012. 2012
  8. KUMAKURA, Hiroaki, YE, Shujun, ZHANG, Yunchao, TAKAHASHI, Masaya, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Microstructure control and Jc improvement in MgB2 tapes and wires. 2012 Applied Superconductivity Conference. 2012
  9. J. Kim, S. Oh, Y.-U. Heo, S. Hata, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, M. Mitsuhara, S. Choi, Y. Shimada, M. Maeda, J.L. MacManus-Driscoll, S. Dou. Microscopic role of carbon on MgB2 wire for critical current density comparable to NbTi. ASC2012. 2012
  10. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toshiya Doi, Satoshi Hata. The microstructure and superconducting properties of Bi,Pb-2223 thin film fabricated. ASC2012. 2012
  11. K. Higashikawa, A. Yamamoto, L. He, K. Shiohara, K. Imamura, M. Inoue, T. Kiss, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Low-temperature and in-field scanning Hall-probe microscopy for MgB2 wire characterization. ASC2012. 2012
  12. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Transport critical current and microstructures of the PIT processed Ba-122 superconducting wires and tapes. IUMRS-ICEM 2012. 2012
  13. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, TOGANO, Kazumasa, Ryo Teranishi, KIYOSHI, Tsukasa. Correlation between microstructure and high critical current of MgB2 Superconductor wires fabricated with internal magnesium dif. IUMRS-ICEM 2012. 2012
  14. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, S. Hata. The microstructure and superconducting properties of Bi,Pb-2223 thin film fabricated by RF sputtering and post annealing method. IUMRS-ICEM2012. 2012
  15. KUMAKURA, Hiroaki, YE, Shujun, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KIYOSHI, Tsukasa. 拡散法MgB2線材におけるMg添加効果. 第73回応用物理学学術講演会. 2012
  16. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, T. Doi, S.Hata, T. Kajihara. スパッタ法で作製したBi,Pb2223薄膜の微細組織と超伝導特性. 第73回応用物理学会学術講演会. 2012
  17. YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki, TERANISHI Ryo, KIYOSHI, Tsukasa. The enhancement of critical current properties of internal Mg diffusion (IMD) processed MgB2 wires by decreasing the un-reacted B. ICEC 24 - ICMC 2012. 2012
  18. NISHIJIMA, Gen, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, OGURO Hidetoshi. Mechanical-electromagnetic properties of MgB2 superconducting wires fabricated by internal Mg diffusion process. ICEC 24 - ICMC 2012. 2012
  19. T. Kajihara, Y. Kubota, Y. Shimada, S. Hata, K. Ikeda, H. Nakashima, T. Doi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. Microstructural improvement in (Bi,Pb)2Sr2Ca2Cu3O10+δ thin film by annealing. ICEC 24-ICMC 2012. 2012
  20. T. Tajima, N.F. Haberkorn, L. Civale, D.J. Devlin, M.E. Hawley, R.K. Schulze, C. James, M. Krishnan, E. Valderrama, B.H. Moeckly, C. Yung, X.X. Xi, T. Tan, MATSUMOTO, Akiyoshi. Vortex Penetration Field of Films Made of Nb, MgB2 and Nb3Sn as a Material for SRF Cavities. ICEC 24-ICMC 2012. 2012
  21. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, T. Doi, S. Hata. The microstructure and superconducting properties of Bi,Pb-2223 thin film fabricated by sputtering method. ICEC 24-ICMC 2012. 2012
  22. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Transport Critical Current Density of Ex-situ PIT Processed (Ba,K)-122 Superconducting Wires and Tapes. ICEC24-ICMC2012. 2012
  23. Satoshi Hata, Yusuke Shimada, Takato Kajiwara, Yu-ki Kubota, Ken-ichi Ikeda, Hideharu Nakashima, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. Electron microscopy observation of Bi-2223 tape fabricated by a controlled overpressure process. ICEC 24-ICMC 2012. 2012
  24. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, TOGANO, Kazumasa, Ryo Teranishi, KIYOSHI, Tsukasa. IMD法で製作したMgB2超伝導線材の分析透過電子顕微鏡による評価. 日本顕微鏡学会第68回学術講演会. 2012
  25. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KIYOSHI, Tsukasa. Development of internal Mg diffusion processed MgB2 wires. International Conf. on Superconductivity and Magnetism(ICSM2012). 2012
  26. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Jc-B-T dependence of MgB2 tapes fabricated by PIT method. MRS spring meeting. 2012
  27. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Toshiya Doi, T. Izumi, Y. Hakuraku, S. Hata. High Tc and Jc of Bi,Pb-2223 thin film fabricated by sputtering method. MRS spring meeting. 2012
  28. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, TOGANO, Kazumasa, Ryo Teranishi, KIYOSHI, Tsukasa. IMD法製作したMgB2 超伝導線材の分析透過電子顕微鏡. NIMS先端計測シンポジウム2012. 2012
  29. MATSUMOTO, Akiyoshi. MgB2超伝導材料のナノ組織制御と高性能化. 九州地区ナノテクノロジー拠点ネットワーク成果報告会. 2012
  30. S. Hata, H. Sosiati, Y. Shimada, K. Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Microstructural formation of MgB2 superconducting tapes in an in-situ powder-in-tube process. International Symposium on Role of Electron Microscopy in Indust. 2012
  31. H. Sosiati, S. Hata, T.Doi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. Transmission Electron Microscopy Observation of MgB2/Ni and MgB2/B Multilayered Superconducting Thin Films . International Symposium on Role of Electron Microscopy in Indust. 2012
2011
  1. NISHIJIMA, Gen, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, OGURO Hidetoshi. Mechanical properties of MgB2 superconducting wires fabricated by internal Mg diffusion process. MEM11. 2011
  2. NISHIJIMA, Gen, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, OGURO Hidetoshi. 内部Mg拡散法によって作製したMgB2線材の機械特性. 2011年度秋季低温工学・超電導学会. 2011
  3. MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. Ag被覆(Ba,K)Fe2As2線材における組織とJcの磁場温度依存性. 2011年度秋季低温工学・超電導学会. 2011
  4. YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki, TERANISHI Ryo, KIYOSHI, Tsukasa. 内部拡散法(IMD)による37芯MgB2線材の作製. 2011 年度秋季低温工学・超電導学会. 2011
  5. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Fabrication and Properties of Iron-based Superconducting Wires . 第15回日米先進超伝導ワークショップ (Japan-US2011). 2011
  6. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, Toshiya Doi, T. Izumi, Y. Hakuraku, S. Hata. The fabrication of Bi,Pb2223 thin films. 15th Japan-USA workshop on advance superconducting. 2011
  7. YE, Shujun, HASEGAWA, Akira, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, TAKEGUCHI, Masaki, KUMAKURA, Hiroaki, TERANISHI Ryo, KIYOSHI, Tsukasa. Comparison of SiC and/or toluene additives to the critical current density of internal Mg diffusion-processed MgB2 wires. 24th International Symposium on Superconductivity (ISS2011). 2011
  8. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Jc-B-T dependence of MgB2 tapes fabricated by PIT method. EUCAS2011. 2011
  9. Y. Shimada, Y.kubota, S. Hata, K. Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. Influences of heat treatment temperatureon miicrostructure in MgB2 superconducting wires fabricated by an internal Mg diffusion process. EUCAS2011. 2011
  10. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Toshiya Doi, Satoshi Hata. RFスパッタ法により作製したBi,Pb2223薄膜の組織と超伝導特性. 2011年秋季 第72回 応用物理学会学術講演会. 2011
  11. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. PIT法によるAg被覆(Ba,K)Fe2As2線材の作製と輸送臨界電流密度. 2011年秋季応用物理学会学術講演会. 2011
  12. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Toshiya Doi, T. Izumi, Y. Hakuraku. Fabrication of Bi,Pb-2223 thin films using sputtering method. CEC-ICMC2011. 2011
  13. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Microstructure and critical current density of Internal Mg Diffusion(IMD) processed mono and multi-filamentary wires. CEC-ICMC2011. 2011
  14. Satoshi Hata, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, S. Tomita, T. Doi. Effectiveness of modern conventional electron microscopy for materials research. National Seminar and Workshop,Apphed Chemistry lndonesia 2011. 2011
  15. YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. 拡散法MgB2線材における不純物添加効果. 2011 年度春季低温工学・超電導学会. 2011
  16. Satoshi Hata, K. Ikeda, E. Nakashima, M. Mitsuhara, MATSUMOTO, Akiyoshi, KIM, Jung Ho, TOGANO, Kazumasa, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, DOU S. X. X線CTによるMgB2線材の組織観察. 低温工学・超電導学会春季大会. 2011
  17. Masaya Kanazawa, Takahiro Ohno, Yutaka Yamada, Kyoji Tachikawa, Fumiyoshi Yamashita, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi. MgB2線材のコア組織に及ぼすHIP処理の影響. 2011年春季低温工学・超電導学会. 2011
  18. HASEGAWA, Akira, YE, Shujun, TAKEGUCHI, Masaki, Masayuki Shimojo, FURUYA, Kazuo, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. ナノ構造分散する材料の3次元STEM観察. 日本顕微鏡学会第67回学術講演会. 2011
  19. KUMAKURA, Hiroaki, YE, Shujun, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KIYOSHI, Tsukasa. Structure and properties of Mg diffusion processed MgB2 multifilamentary wires. ICEC24-ICMC2012. 2011
2010
  1. Yusuke Shimada, Yuki Kubota, Satoshi Hata, Kenichi Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, KUMAKURA, Hiroaki. 内部Mg拡散MgB2線材のマクロ組織に及ぼす熱処理条件の影響. 第83回(2010年秋季) 低温工学・超電導学会. 2010
  2. M. Kanazawa, T. Ohno, N. Ogasawara, Y. Yamada, K. Tachikawa, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi. Mg金属管を用いた外部拡散法MgB2線材の組織と超伝導特性. 第83回(2010年秋季) 低温工学・超電導学会. 2010
  3. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. MgB2テープ線材におけるJcの磁場温度依存性. 第83回(2010年秋季) 低温工学・超電導学会. 2010
  4. YOSHIMURA Takuya, DOI Toshiya, IZUMI Takemori, HAKURAKU Yoshinori, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. DCマグネトロンスパッタリング法を用いたBi2Sr2Ca2Cu3O10薄膜の作製. 低温工学・超伝導学会. 2010
  5. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Critical Current Properties of the Iron Based Pnictide Superconducting Wire. ICC 3rd International Congress on Ceramics. 2010
  6. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, T. Doi, T. Izumi, Y. Hakuraku. Microstructures and superconducting properties of Bi,Pb-2223 thin film fabricated by sputtering method. ICC 3rd International Congress on Ceramics. 2010
  7. KUMAKURA, Hiroaki, HUR, Jahmahn, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, TOGANO, Kazumasa. Development of high performance MgB2 Tapes and wires. 23rd International Symposium on Superconductivity(ISS 2010). 2010
  8. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, T. Doi, T. Izumi, Y. Hakuraku. The fabrication of Bi,Pb-2223 thin film using sputtering deposition and post annealing method. ISS2010. 2010
  9. Y. Shimada, Y. Kubota, S. Hata, K. Ikeda, H. Nakashima, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, HUR, Jahmahn, KUMAKURA, Hiroaki. 内部Mg拡散法により作製したMgB2線材の臨界電流特性と微細構造. 2010年日本金属学会秋期大会. 2010
  10. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, H. Yamada, M. Igarashi, K. Wada, Y. Yamada. MgB2テープ線材における組織と臨界電流の磁場温度依存性. 2010年秋季 第71回 応用物理学会学術講演会. 2010
  11. KUMAKURA, Hiroaki, HUR, Jahmahn, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, WADA, Hitoshi, Kaoru Kimura. 拡散法により作製したMgB2線材の組織と臨界電流特性. 2010年秋季 第71回 応用物理学会学術講演会. 2010
  12. T. Tajima, N. Haberkorn, G. Eremeev, L. Civale, M. Hawley, R. Schulze, A. Zocco, J. Guo, V. Dolgashev, D. Martin, S. Tantawi, C. Yoneda, B. Moeckly, T. Doi, MATSUMOTO, Akiyoshi. STUDIES ON SUPERCONDUCTING THIN FILMS FOR SRF APPLICATIONS. LINAC10(10th Linear accelerator Conference). 2010
  13. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, H. Yamada, M. Igarashi, K. Wada, Y. Yamada. The microstructure and the superconducting properties of PIT MgB2 tapes fabricated applying hot-pressing. IUMRS-ICEM 2010. 2010
  14. KUMAKURA, Hiroaki, HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, WADA, Hitoshi, Kaoru Kimura. Fabrication of diffusion processed multi-filamentary MgB2 wires. IUMRS-ICEM2010. 2010
  15. KIM, Jung Ho, CHOI, Seyong, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, S.X. Dou. Carbon doping by oxygen free pyrene on the MgB2 superconductor wire. IUMRS-ICEM(International Conf. Electronic Materials) 2010. 2010
  16. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Critical properties of polycrystalline (Ba,K)Fe2As2 superconductors prepared by a combined process of high temperature heat treatment and deformation. 2010 Applied Superconductivity Conference. 2010
  17. KUMAKURA, Hiroaki, HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, WADA, Hitoshi, Kaoru Kimura. Fabrication of high performance MgB2 tapes and wires. ICEC-ICMC 2010. 2010
  18. S. Hata, H. Sosiati, T. Shimada, T. Doi, MATSUMOTO, Akiyoshi, K. Ikeda, H. Nakashima, KITAGUCHI, Hitoshi. The Microstructure in MgB2/Ni Alternate-Layered Superconducting Film. The 2nd International Symposium on Advanced Microscopy and Theor. 2010
  19. TOGANO, Kazumasa, HUR, Jahmahn, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. 内部Mg拡散(IMD)法によるMgB2線材の作製ーフィラメントサイズの組織・特性への影響. 2010年春季低温工学・超電導学会. 2010
  20. KUMAKURA, Hiroaki, HUR, Jahmahn, WADA, Hitoshi, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa, Kaoru Kimura. 拡散法により作製したMgB2丸線材の組織と臨界電流特性. 日本金属学会2010年春期(第146回)大会講演. 2010
  21. TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. (Ba,K)Fe2As2多結晶超伝導体の組織と臨界特性. 日本金属学会2010年春期大会. 2010
  22. S. Hata, K. Ikeda, E. Nakashima, Y. Shimada, T. Doi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. MgB2 超伝導薄膜の臨界電流特性と微細組織制御. 2010年春期大会講演. 2010
  23. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Y. Hikichi, T. Nakatsu, T. Hasegawa. Bi2212多芯丸線材の初期粉末組成依存性. 2010年春期大会講演. 2010
2009
  1. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Y. Hikichi, T. Nakatsu, J. Nishioka, T. Hasegawa. The microstructures and superconducting properties of Bi2212 round wires. The 14th US-Japan Workshop. 2009
  2. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, TOGANO, Kazumasa. Ta被覆したBa0.6K0.4Fe2As2テープの臨界特性. 新規材料による高温超伝導基盤技術第3回領域会議公開シンポジウム. 2009
  3. KIM, Jung Ho, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Matthew A. RINDFLESICH, Michael J. TOMSIC, Shi Xue DOU. Progress in MgB2 superconductor wires and tapes. ACASC 2009. 2009
  4. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, YAMADA, Hideyuki, M. Igarashi, K. Wada, Y. Yamada. ホットプレス法によって作製したMgB2線材の組織と超伝導特性. 2009年秋季低温工学超伝導学会. 2009
  5. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Y. Hikichi, T. Nakatsu, T. Hasegawa. 異なる組成の仮焼粉で作製したBi2212丸線材の超伝導特性とその組織. 2009年秋季低温工学超伝導学会. 2009
  6. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, H. Wada, K. Kimura. Structure and properties of MgB2 wires by an internal Mg diffusion Process (2nd report). 2009年度秋季低温工学・超電導学会. 2009
  7. KIM, Jung Ho, SHI XUE Dou, MATT Rindfleisch, MIKE Tomsic, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Comparative study of mono-and multi-filaments MgB2 wires with different boron powders and malic acid addition. 2009年度秋季低温工学・超電導学会. 2009
  8. TOGANO, Kazumasa, HUR, Jahmahn, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. Fabrication of MgB2 multi-filamentary wires by internal Mg diffusion process. 第22回国際超電導シンポジウム(ISS2009). 2009
  9. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Yasuo Hikichi, Teruo Nakatsu, Jun-ichi Nishioka, Takayo Hasegawa. The effect on impurity phases of Bi-2212 round wires with different nominal compositions. 第22回国際超電導シンポジウム(ISS2009). 2009
  10. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Superconducting properties of C-doped MgB2 thin film fabricated by 2-step method using PLD. 第22回国際超電導シンポジウム(ISS2009). 2009
  11. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, Motohiro Igarashi, Yutaka Yamada, Kyoji Tachikawa. ホットプレスによるPIT法MgB2線材の高密度化と臨界電流特性の改善. 日本金属学会2009年秋期大会. 2009
  12. TOGANO, Kazumasa, HUR, Jahmahn, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. 内部Mg拡散(IMD)法によるMgB2超伝導多芯線材の作製. 日本金属学会2009年秋期大会. 2009
  13. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. The superconducting properties in carbon doped MgB2 thin films fabricated by precursor post-annealing process. EUCAS2009. 2009
  14. YAMADA, Hideyuki, Motohiro Igarashi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, Kyoji Tachikawa, Yutaka Yamada, Yutaka Nemoto. Fabrication of high performance in situ PIT MgB2 tapes by applying a hot pressing. 9th European Conference on Applied Superconductivity(EUCAS2009). 2009
  15. YAMADA, Hideyuki, Motohiro Igarashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, Yutaka Nemoto, Yutaka Yamada, Kyoji Tachikawa. Improvement of critical current properties of in situ PIT MgB2 tapes by applying hot pressing. CEC-ICMC 2009. 2009
  16. YAMADA, Hideyuki, KUMAKURA, Hiroaki, Motohiro Igarashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi. Influence of the heat treatment for in situ PIT-processed MgB2 tapes with both ethyltoluene and SiC powder added. CEC-ICMC 2009. 2009
  17. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, T. Nakatsu, J. Nishioka, T. Hasegawa. The fabrication of Bi2212 round wires with different nominal compositions. CEC/ICMC2009. 2009
  18. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. Fabrication of mono-core and multi-core MgB2 wires by an internal Mg diffusion process . CEC-ICMC 2009. 2009
  19. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. 内部拡散法により作製したMgB2線材の構造とJc特性. 2009年春季低温工学・超電導学会. 2009
  20. YAMADA, Hideyuki, Motohiro Igarashi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, Kyoji Tachikawa, Yutaka Yamada, Yutaka Nemoto. ホットプレス加工によるin situ PIT法MgB2線材の臨界電流特性向上. 2009年度春季低温工学・超電導学会. 2009
  21. KIM, Jung Ho, Sangjun Oh, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, Matt Rindfleisch, Mike Tomsic, Shixue Dou. Evaluation of critical current density based on percolation model in carbohydrated doped MgB2 wires. 2009年度春季低温工学・超電導学会. 2009
  22. MATSUMOTO, Akiyoshi. MgB2超伝導体材料研究の現状. 第9回九州地区ナノテクノロジー拠点ネットワークセミナー. 2009
2008
  1. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. Fabrication of MgB2 wires by internal Mg diffusion process. IUMRS-ICA2008. 2008
  2. MATSUMOTO, Akiyoshi, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Superconducting properties of MgB2 thin films fabricated by precursor and post-annealing method. IUMRS-ICA2008. 2008
  3. TAKAHASHI, Kenichiro, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Improvement of the Homogeneity and Critical Current Densities of Bi2212 Round Wires Prepared by Isothermal Partial Melting Method. IUMRS-ICA 2008. 2008
  4. ASTHANA, Anjana, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, MATSUI, Yoshio, HARA, Toru, YAMADA, Hideyuki, Nobuhito Uchiyama, KUMAKURA, Hiroaki. Structural-microstructural characterization and its correlations with the superconducting properties of in-situ processed MgB2 tapes with ethyltoluene and SiC powder added. IURMS-ICA2008. 2008
  5. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. Fabrication of MgB2 wires by an internal Mg diffusion process. IUMRS-ICA2008. 2008
  6. MATSUMOTO, Akiyoshi, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. プリカーサー・アニール法によって作製したMgB2薄膜におけるC添加効果. 2008年度秋季低温工学・超電導学会. 2008
  7. TOGANO, Kazumasa, HUR, Jahmahn, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. 内部Mg拡散法によるMgB2多芯線材の作製. 2008 年秋の低温工学・超伝導学会. 2008
  8. KUMAKURA, Hiroaki, HUR, Jahmahn, MATSUMOTO, Akiyoshi, Kaoru Kimura, Hitoshi Wada, TOGANO, Kazumasa. STRUCTURES AND SUPERCONDUCTING PROPERTIES OF MgB2 WIRES BY AN INTERNAL Mg DIFFUSION PROCESS. 21st International Symposium on Superconductivity(ISS2008). 2008
  9. ASTHANA, Anjana, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, Hideyuki Yamada, Nobuhito Uchiyama, KUMAKURA, Hiroaki. Structural-microstructural characteristics and its correlations with the superconducting properties of in-situ PIT processed MgB2 tapes with ethyltoluene and SiC powder added. . IUCr2008 Satellite Meeting. 2008
  10. YAMADA, Hideyuki, Motohiro Igarashi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi. Influence of the pre-heat treatment on the Jc values of PIT MgB2/Fe tapes . 2008 Applied Superconductivity Conference(ASC2008). 2008
  11. KUMAKURA, Hiroaki, HUR, Jahmahn, MATSUMOTO, Akiyoshi, Kaoru Kimura, Hitoshi Wada, TOGANO, Kazumasa. Fabrication and superconducting properties of Mg diffusion processed MgB2 wires. IUMRS-ICEM2008. 2008
  12. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. Structure and superconducting properties of MgB2 wires fabricated by an internal Mg diffusion method. ICEC22-ICMC2008. 2008
  13. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi. Critical Current Densities of MgB2 tapes and films. NIMS WEEK 2008. 2008
  14. TAKAHASHI, Kenichiro, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi. 等温部分溶融法により作製したBi2212丸線の臨界電流特性(2)-Bi2212コアの不均一性の影響-. 2008年度春季低温工学・超電導学会. 2008
  15. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, YAMADA, Hideyuki, Motohiro Igarashi. PIT法MgB2線材における不純物添加効果. 第55回応用物理学関係連合講演会. 2008
  16. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. 高濃度SiC添加MgB2線材の超伝導特性. 2008年春季 第55回応用物理学術講演会. 2008
  17. HUR, Jahmahn, TOGANO, Kazumasa, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, Hitoshi Wada, Kaoru Kimura. 内部拡散法による高性能MgB2線材の作成. 第55回応用物理学関係連合講演会. 2008
  18. ASTHANA, Anjana, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, MATSUI, Yoshio, KUMAKURA, Hiroaki. Structural-Microstructural Characteristics and its Correlations with the Superconducting Properties of in-situ PIT Processed MgB2 Tapes with Ethyltoulene and SiC Powder added.. APS March Meeting 2008. 2008
2007
  1. YAMADA, Hideyuki, Motohiro Igarashi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi. エチルトルエン及びSiC粉末を同時添加したin situ PIT法MgB2テープの超電導特性(第二報) − 長尺線作製のための事前熱処理の適用 −. 低温工学・超電導学会. 2007
  2. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, FUJII, Hiroki, KITAGUCHI, Hitoshi, YAMADA, Hideyuki, Motohiro Igarashi. MgB2線材とその特性(第2報). 2007年秋季低温工学・超電導学会. 2007
  3. TAKAHASHI, Kenichiro, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. 等温部分溶融法により作製したBi2212丸線の臨界電流特性. 2007年秋季低温工学・超電導学会. 2007
  4. S. Hata, H. Sosiati, T. Yoshidome, Y. Tomokiyo, N. Kuwano, MATSUMOTO, Akiyoshi, T. Doi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Transmission electron microscopy analysis for the development of MgB2 superconducting materials. Malaysia-Japan International Symposium on Advanced Technology. 2007
  5. YAMADA, Hideyuki, Motohiro Igarashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Superconducting Properties of MgB2 Tapes with Both Ethyltoluene and SiC Powder Added and the Experimental Device Constructed with the MgB2 Coil. The 13th JAPAN-US Workshop on Advanced Superconductors. 2007
  6. MATSUMOTO, Akiyoshi, KOBAYASHI, Yuki, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. The microstructures and Superconducting properties of MgB2 tapes and films. The 13th Japan-US Workshop on Advanced Superconductors. 2007
  7. KITAGUCHI, Hitoshi, TAKAHASHI, Kenichiro, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, AYAI Naoki, KOBAYASHI Shin-ichi, KIKUCHI Masashi, SATO Ken-ichi. Ic-B-T performance of CT-OP Bi-2223 tapes. 第13回日米高温超伝導体ワークショップ. 2007
  8. S. Hata, H. Sosiati, T. Yoshidome, N. Yuzuriha, N. Kuwano, H. Yamada, M. Igarashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Transmission electron microscopy observation of MgB2 tapes fabricated by in situ processes. The 13th Japan-US Workshop on Advanced Superconductors. 2007
  9. YAMADA, Hideyuki, Motohiro Igarashi, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Superconducting Properties of MgB2 Tapes with Both Ethyltoluene and SiC Powder Added and the Experimental Device Constructed with the MgB2 Coil. 20th International Symposium on Superconductivity(ISS2007). 2007
  10. ASTHANA, Anjana, YAMADA, Hideyuki, Nobuhito Uchiyama, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, MATSUI, Yoshio, KUMAKURA, Hiroaki. STRUCTURAL- MICROSTRUCTURAL CHARACTERISTICS AND ITS CORRELATIONS WITH THE SUPERCONDUCTING PROPERTIES OF in situ PIT PROCESSED MgB2 TAPES WITH ETHYLTOULENE AND SiC POWDER ADDED . 20th International Symposium on Superconductivity(ISS2007) . 2007
  11. KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, TAKAHASHI, Kenichiro, TOGANO, Kazumasa, KUMAKURA, Hiroaki, YAMADA Hideyuki, DOI Toshiya. Recent progress in MgB2 wires and films. 国際超電導シンポジウム(ISS2007). 2007
  12. ASTHANA, Anjana, YAMADA, Hideyuki, Nobuhito Uchiyama, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, MATSUI, Yoshio, KUMAKURA, Hiroaki. STRUCTURAL- MICROSTRUCTURAL CHARACTERISTICS AND ITS CORRELATIONS WITH THE SUPERCONDUCTING PROPERTIES OF INSITU PITPROCESSED MgB2 TAPES. 20th International Symposium on Superconductivity. 2007
  13. M.O. Rikel, J. Bock, H. Miao, S. Hong, K. Marken, J. Jiang, MATSUMOTO, Akiyoshi, E.E. Hellstrom, D.C. Larbalestier. Effect of Precursor Composition on Performance of Partially Melt-Processed Bi2212 Conductors. EUCAS'07. 2007
  14. S. Hata, T. Yoshidome, H. Sosiati, N. Kuwano, K. Fukuyama, K. Masuda, T. Doi, Y. Hakuraku, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Microstructural changes in MgB2 films with introducing oxygen in a fabrication process using electron beam evaporation. EUCAS'07. 2007
  15. MATSUMOTO, Akiyoshi, KOBAYASHI, Yuki, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. The superconducting properties of MgB2 thin films fabricated by precursor and post-annealing method. Eupopian Conference on Applied Superconductivity. 2007
  16. MATSUMOTO, Akiyoshi, KOBAYASHI, Yuki, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. MgB2超伝導薄膜の高磁界特性. 第68回応用物理学会学術講演会. 2007
  17. M. Takeda, T. Akazawa, Y. Iwamoto, C. Kazama, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, UEMATSU, Hiroshi, H. Iwashita, I. Kodama, Y. Matsuno. Characteristics of MgB2 sensor for detecting level of liquid hydrogen. CEC/ICMC2007 . 2007
  18. MATSUMOTO, Akiyoshi, UEMATSU, Hiroshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, H. Yamada, N. Uchiyama. High magnetic field properties of MgB2/Fe tape fabricated by in-situ-PIT method. 2007 Cryogenic Engineering Conference andInternational Cryogenic. 2007
  19. MATSUMOTO, Akiyoshi. 線材および薄膜の臨界電流密度特性. MgB2の臨界電流特性に関する調査研究会. 2007
  20. TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KAWABATA Daishi, DOI Toshiya, HAKURAKU Yoshinori . [00l]傾角粒界におけるBi2212薄膜の臨界電流特性. 第76回 2007年度春季低温工学・超電導学会. 2007
  21. MATSUMOTO, Akiyoshi, KOBAYASHI, Yuki, TAKAHASHI, Kenichiro, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. プリカーサー・アニール法によって作製したMgB2薄膜の超伝導特性. 低温工学・超電導学会. 2007
  22. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, Nobuhito Uchiyama. Processing and superconducting properties of MgB2 tape conductors. 2007 MRS Spring Meeting. 2007
  23. MATSUMOTO, Akiyoshi, UEMATSU, Hiroshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, H. Yamada, N. Uchiyama. In-situ-PIT法によって作製したMgB2超伝導線材への添加物依存性. 日本金属学会2007年春季大会. 2007
2006
  1. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, YAMADA, Hideyuki, TANAKA, Kazuhide, TAKAHASHI, Masaya, Nobuhito Uchiyama, Michiya Okada. MgB2線材とその特性. 2006年度秋季低温工学・超電導学会. 2006
  2. Naoya Yuzuriha, YOSHIDOME Takesi, HATA Satoshi, KUWANO Noriyuki, UCHIYAMA Nobuhito , MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. チオフェンを添加したin-situ MgB2線材のTEM観察. 低温工学・超電導学会. 2006
  3. YAMADA, Hideyuki, Jyunji Uchiyama, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi. アークプラズマ法で作製した微細Mg粉末を用いたin situ PIT法MgB 2テープの超電導特性. 2006年度秋季低温工学・超電導学会. 2006
  4. HATA Satoshi, YOSHIDOME Takeshi, KUWANO Noriyuki , FUKUYAMA Kandai, MASUDA Kazuyuki, DOI Toshiya, HAKURAKU Yoshinori , MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. ナノオーダーNi層を導入したMgB2薄膜の微細組織観察. 低温工学・超電導学会. 2006
  5. YOSHIDOME Takeshi, HATA Satoshi, KUWANO Noriyuki , FUKUYAMA Kandai, MASUDA Kazuyuki, DOI Toshiya, HAKURAKU Yoshinori , MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. 成膜時に酸素を導入したMgB2薄膜の微細組織. 低温工学・超電導学会. 2006
  6. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, TAKAHASHI, Masaya, TANAKA, Kazuhide, YAMADA, Hideyuki, Nobuhito Uchiyama, Michiya Okada. Development of MgB2 tapes and wires. 19th International Symposium on Superconductivity(ISS2006). 2006
  7. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, KITAGUCHI, Hitoshi, YAMADA, Hideyuki, Nobuhito Uchiyama. MgB2/Feテープ線材におけるボロンサイトのカーボン置換効果. 日本金属学会秋期大会. 2006
  8. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, S. Hata, T. Yoshidome, Y. Tomokiyo, H. Sosiati, N. Kuwano. Effects of SiC doping on microstructures of MgB2/Fe tapes fabricated by an in situ PIT method with annealing at 873 K. ASC2006. 2006
  9. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, B. J. Senkowicz, Y. Zhu, P. Voyles, E.E. Hellstrom, D.C. Larbalestier. Superconducting properties of pure and doped MgB2 fabricated by PIT-in-situ method. ASC2006(応用超伝導会議). 2006
  10. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, Masazumi Hirakawa, TANAKA, Kazuhide, Masaya Takahashi, Michiya Okada. Development of MgB2 wires, tapes and coils. Int. Conf. Modern Materials and Technologies(CIMTEC 2006). 2006
  11. YAMADA, Hideyuki, Nobuhito Uchiyama, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi. In-situ PIT法MgB2テープの芳香族炭化水素添加効果(第二報). 低温工学会2006低温工学・超電導学会. 2006
  12. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, B. J. Senkowicz, Y. Zhu, E. E. Hellstron, P. M. Voyles , D. C. Larbalestier. In-situ法MgB2線材における上部臨界磁界の熱処理依存性. 低温工学協会低温工学・超伝導学会. 2006
  13. Yoshidome Takeshi, Sosiati Harini, Satoshi Hata, Yoshiji Tomokiyo, Noriyuki Kuwano, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. SiCナノ粒子を添加したMgB2超伝導線材のTEMによる微細構造解析. 低温工学協会低温工学・超伝導学会. 2006
  14. KUMAKURA, Hiroaki, NAKANE, Takayuki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, Masazumi Hirakawa. PIT法で作製したMgB2テープにおけるMgB2コアの結晶性と超伝導特性. 応用物理学会関係連合講演会. 2006
  15. S. Hata, T. Toshidome, Y. Tomokiyo, H. Sosiati, N. Kuwano, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. SiCナノ粒子添加に伴うin situ MgB2線材の微細組織変化のFIB-TEM解析. 日本金属学会. 2006
  16. H. Sosiati, Satoshi HATA, T. Yoshidome, Y. Tomokiyo, N. Kuwano, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Effect of ball-milling treatment on microstructure of in situ powder-in-tube MgB2 tape. 日本金属学会. 2006
  17. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, B. J. Senckovicz, Y. Zhu, E.E.Herstrom, P.M.Voyles, D.C.Larbalestier. MgB2超伝導体の上部臨界磁界. 日本金属学会2006年春期大会. 2006
  18. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, NAKANE, Takayuki, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, Masazumi Hirakawa. MgB2 tapes and wires - Processing and superconducting properties -. 11th CHEM-HTSC Workshop. 2006
  19. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki. MgB2線材開発における材料学的諸問題. 第3回量子ビーム産業利用研究会. 2006
2005
  1. T.Yoshinode, H. Sosiati, S. Hata, N. Kuwano, Y. Tomokiyo, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. MICROSTRUCTURES OF IN-SITU PIT MgB2 TAPES FABRICATED WITH A BALL-MILLING TECHNIQUE. 18th International Symposium on superconductivity. 2005
  2. YAMADA, Hideyuki, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, Masazumi Hirakawa. Effect of compound addition on the in situ processed powder-in-tube MgB2 tapes. 18th International Symposium on Superconductivity. 2005
  3. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, NAKANE, Takayuki, TANAKA, Kazuhide, YAMADA, Hideyuki, Masazumi HIRAKAWA, Michiya OKADA. Development of powder-in-tube processed MgB2 tapes, wires and coils. 18th International Symposium on Superconductivity. 2005
  4. E.E.Hellstrom, MATSUMOTO, Akiyoshi, M.O.Rikel, S.Arsac, E.Soileux, J.Ehrenberg, J.Bock, K.Marken, H.Miao, C.-E Bruzek, L.Motowidlo. Effect of Cation Composition on the melting behaviour of Ag-sheathed 2212 conductors. 第12回日米高温超伝導体ワークショップ. 2005
  5. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, B. J. Senkowicz, Y. Zhu, P. Voyles, E.E. Hellstrom, D.C. Larbalestier. Superconducting properties of pure and SiC-doped MgB2 bulks. 第12回日米高温超伝導体ワークショップ. 2005
  6. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, 平川正澄, TANAKA, Kazuhide, 岡田道哉. Development of MgB2/Fe composite tapes and wires by powder-in-tube method. 6th Pacific Rim Conference on Ceramics and Glass Technology. 2005
  7. MATSUMOTO, Akiyoshi, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO, B. J. Senkowicz, Y. Zhu, P. Voyles, E.E. Hellstrom, D.C. Larbalestier. Systematic effects of Heat treatment condition on Jc, Hc2 and Hirr and resistivity of pure and SiC-doped MgB2 tapes. 第7回欧州応用超伝導会議(EUCAS’05). 2005
  8. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. Upper critical field, irreversibility field and critical current density of in situ PIT processed MgB2/Fe tapes. International Cryogenic Materials Conference2005(ICMC2005). 2005
  9. ハリニ ソシアティ, 波多聰, 桑野範之, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, MATSUMOTO Akiyoshi. Microstructural study of SiC doped MgB2/Fe superconducting tapes. 日本顕微鏡学会第61回学術講演会. 2005
  10. YAMADA, Hideyuki, 平川正澄, KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. In-situ PIT法で作製したMgB2テープの臨界磁界及び臨界電流密度の熱処理温度依存性. 2005年度春季低温工学・超電導学会. 2005
  11. HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, UEMATSU, Hiroshi, KUMAKURA, Hiroaki, YAMADA, Hideyuki, 平川正澄. Cu-Niシース材を用いたin situ PIT法MgB2線材の作製. 2005年度春季低温工学・超伝導学会. 2005
  12. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. PIT法で作製したMgB2テープの上部臨界磁界ならびに不可逆磁界の熱処理温度依存性. 第52回応用物理学会講演会. 2005
  13. ハリニ ソシアティ, 波多聰, 吉留健, 友清芳二, 桑野範之, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. Effect of nano-SiC doping on microstructure of in situ powder-in-tube MgB2 tape. 日本金属学会春期大会. 2005
  14. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. MgB2超伝導線材の開発. 第52回応用物理学会講演会 超伝導シンポジウム. 2005
2004
  1. Harini Sosiati, Satoshi Hata, Noriyuki Kuwano, Yoshiji Tomokiyo, KITAGUCHI, Hitoshi, Toshiya Doi, H. Yamamoto, MATSUMOTO, Akiyoshi, K. Saitoh, KUMAKURA, Hiroaki. Microstructures and Jc of MgB2/(001) Al2O3 Thin Film Fabricated by Electron Beam Deposition. ISS2004(第17回国際超電導シンポジウム). 2004
  2. YAMADA, Hideyuki, 平川正澄, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO. SUPERCONDUCTING PROPERTIES OF POWDER-IN-TUBE MgB2 TAPES PREPARED WITH FINE POWDERS. 17th International Symposium on Superconductivity. 2004
  3. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, Ma, Yanwei, HATAKEYAMA, HIDEO, YAMADA, Hideyuki, 平川正澄. Fabrication and superconducting properties of in-situ PIT processed MgB2 tapes and wires. ISS2004. 2004
  4. HATAKEYAMA, HIDEO, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, YAMADA, Hideyuki, 平川正澄. 遊星型ボールミルを用いて作製したIn-situ-PIT法MgB2線材の臨界電流密度(その2). 2004年度秋季低温工学・超伝導学会. 2004
  5. YAMADA, Hideyuki, 平川正澄, TANAKA, Kazuhide, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. 微細粉末を用いて作製したin-situ PIT法MgB2テープの超電導特性. 2004年度秋季低温工学・超電導学会. 2004
  6. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, YAMADA, Hideyuki, 平川正澄, 太刀川恭治. Ex situ PIT法で作製したA15型超電導線材におけるアニールの効果. 2004年度秋季低温工学・超電導学会. 2004
  7. KITAGUCHI, Hitoshi, 土井 俊哉, MATSUMOTO, Akiyoshi, FUKUTOMI, Masao. Properties of MgB2 Films with Very High Transport Jc. Applied Superconductivity Conference 2004 (ASC2004). 2004
  8. MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki. ボールミル粉末を用いたMgB2線材の作製とその超伝導特性. 日本金属学会. 2004
  9. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO. In situパウダー・イン・チューブ法で作製したMgB2/Fe線材の臨界電流特性. 日本金属学会 2004年秋期大会. 2004
  10. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO. in-situパウダー・イン・チューブ法によるMgB2線材の超電導特性. 電気学会A部門大会. 2004
  11. Harini Sosiati, 波多聰, 桑野範之, 友清芳二, MATSUMOTO, Akiyoshi, FUKUTOMI, Masao, KITAGUCHI, Hitoshi, KOMORI, Kazunori, KUMAKURA, Hiroaki. Microstructures of MgB2/YSZ/Hastelloy Superconducting Films Fabricated by Pulsed Laser Deposition. 8th Asia-Pacific conference on electron microscopy. 2004
  12. YAMADA, Hideyuki, 平川正澄, KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO. 微細粉末を用いて作製したPIT法MgB2テープの超電導特性. 2004年度春季低温工学・超電導学会. 2004
  13. HATAKEYAMA, HIDEO, MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, KUMAKURA, Hiroaki, YAMADA, Hideyuki, 平川正澄. 遊星型ボールミルを用いて作製したin-situ PIT法MgB2線材の臨界電流密度. 低温工学・超電導学会. 2004
  14. MATSUMOTO, Akiyoshi, KITAGUCHI, Hitoshi, HATAKEYAMA, HIDEO, KUMAKURA, Hiroaki. In-situ法MgB2線材の上部臨界磁界ならびに不可逆磁界. 低温工学・超伝導学会. 2004
  15. KUMAKURA, Hiroaki, KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO. パウダー・イン・チューブ法で作製したMgB2テープの上部臨界磁界ならびに不可逆磁界. 2004年春季第51回応用物理学関係連合講演会. 2004
  16. KITAGUCHI, Hitoshi, MATSUMOTO, Akiyoshi, HATAKEYAMA, HIDEO, KUMAKURA, Hiroaki. High temperature performance of MgB2 PIT composite tapes. 国際低温材料会議. 2004
  17. KUMAKURA, Hiroaki, MATSUMOTO, Akiyoshi, FUJII, Hiroki, HATAKEYAMA, HIDEO, KITAGUCHI, Hitoshi, 山田秀之, 平川正澄. Fabrication and Superconducting Properties of P-I-T MgB2 Tapes and Wires. ICMC2004-Topical Workshop. 2004

Patents TSV

Registered patents
  1. No. 6398138 鉄系超伝導線材の製造方法 (2018)
  2. No. 6161034 MgB2超伝導体の製造方法およびMgB2超伝導体 (2017)
  3. No. 5046990 MgB2超電導体の製造方法およびMgB2超電導体 (2012)
  4. No. 4989414 NMRプローブ用アンテナコイルとその製造方法、NMRプローブアンテナコイル用低磁性超電導線材及びNMRシステム (2012)
  5. No. 4136896 MgB2超電導線材とその製造方法。 (2008)
  6. No. 4002975 ビスマス2212超伝導複合多芯線材の製造方法 (2007)
  7. No. 3876317 MgB2超伝導線材の製造方法 (2006)
  8. No. 3716307 MgB2超伝導線材とその製造方法 (2005)
  9. No. 3548795 3軸配向酸化物超伝導複合体の製造方法 (2004)
Patent applications
  1. No. 2015060637 鉄系超伝導線材の製造方法 (2015)
  2. No. 2009103517 NMRプローブ用アンテナコイルとその製造方法、NMRプローブアンテナコイル用低磁性超電導線材及びNMRシステム (2009)
  3. No. 2008235263 MgB2超電導体の製造方法およびMgB2超電導体 (2008)
International patents
  1. No. US20160314877A1 METHOD FOR MANUFACTURING MGB2 SUPERCONDUCTOR, AND MGB2 SUPERCONDUCTOR (2016)
  2. No. EP3086328A1 METHOD FOR MANUFACTURING MgB2 SUPERCONDUCTOR, AND MgB2 SUPERCONDUCTOR (2016)
  3. No. US20080274902A1 Method for producing MgB2 superconductor and MgB2 superconductor (2008)

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