- Address
- 305-0047 茨城県つくば市千現1-2-1 [アクセス]
研究内容
- Keywords
超伝導材料、MRI、エネルギー損失ゼロ
出版物2004年以降のNIMS所属における研究成果や出版物を表示しています。
論文
- Hiroki Fujii, Hitoshi Kitaguchi. Superconducting properties of sintered ex situ MgB2 tapes through ball milling process as a function of crystallite size in the as-milled and sintered states. Physica C: Superconductivity and its Applications. 583 (2021) 1353838 10.1016/j.physc.2021.1353838
- Hiroki Fujii, Hitoshi Kitaguchi. Reduced sintering temperature in ex situ processed MgB2 tapes using filling powders with Sn addition. Physica C: Superconductivity and its Applications. 576 (2020) 1353704 10.1016/j.physc.2020.1353704
- Hiroki Fujii, Akio Iwanade, Hitoshi Kitaguchi. WC contamination or addition effect on the superconducting properties in ex situ processed MgB2 tapes using unmilled and ball milled filling powders. Physica C: Superconductivity and its Applications. 559 (2019) 32-41 10.1016/j.physc.2019.01.012
会議録
- Yasuhiro Nakao, OZAWA, Kiyoshi, FUJII, Hiroki, MOCHIKU, Takashi, IWAI, Hideo, TSUCHIYA, Yoshinori, Naoki Igawa. Electrode Properties of Li2MnO3 (C2/m) for a Lithium-Battery Cathode in Sevral Charge-Discharge Potential Ranges. TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN. 2013, 229-233
- Hiroki Fujii, Kazumasa Togano, Kiyoshi Ozawa, Hiroaki Kumakura. Detrimental Effects Depending on the Sheath Materials in Ex Situ Processed Heat Treated $\hbox{MgB}_{2}$ Wires and Tapes. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. 2011, 2664-2667
- FUJII, Hiroki, TOGANO, Kazumasa, KUMAKURA, Hiroaki, OZAWA, Kiyoshi. Improved critical current densities in ex-situ processed MgB2-xCx tapes using powders treated in chemical solutions. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. 2009, 2698-2701
口頭発表
- 藤井 宏樹, 北口 仁. 自作MgB2粉を使用したex situ法MgB2線材の超伝導特性. 2020年度春季第99回低温工学・超電導学会研究発表会. 2020
- 茂筑高士, 立木実, 大井修一, 藤井 宏樹, 星川晃範, 石垣徹. GaInSn共晶合金における超伝導. 日本物理学会2019年秋季大会. 2019
- 藤井 宏樹, 北口 仁. 金属粉末添加によるex situ法MgB2線材の焼結温度の低下. 2019年度春季(第98回)低温工学・超電導学会. 2019
その他の文献
- MOCHIKU, Takashi, HATA Yoshiaki, IWASE Kenji, YONEMURA Masao, Stefanus HARJO, HOSHIKAWA Akinori, OIKAWA Kenichi, ISHIGAKI Toru, KAMIYAMA Takashi, FUJII, Hiroki, IZUMI, Fujio, KADOWAKI Kazuo, HIRATA, Kazuto. Structure phase transition in Fe-heavily-substituted copper oxide superconductor FeSr2YCu2O6+δ. KENS-report XV. 2006 [4] (2007) 65-66
特許
- 特許第3728504号 ＭｇＢ２超伝導線材の作製方法 (2005)
- 特許第3876317号 ＭｇＢ２超伝導線材の製造方法 (2006)
- 特許第5229868号 ＭｇＢ2超伝導線材の製造方法 (2013)