Development of MgB_2 multifilamentary wires applied for large conductor under liquid hydrogen temperature operation

液氢温度下大导体MgB_2复丝导线的研制

• 批准号: 21760240
• 负责人: HISHINUMA Yoshimitsu
• 金额: $ 2.83万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760240/
• 关键词: 超伝導導体; 液体水素; 二ホウ化マグネシウム; 低放射化; ホウ素同位体; 液体水素応用; MgB_2; 多芯素線; 長尺化; 撚線構造; 導体設計; 同位体効果; 多芯化; 長尺線材加工; 臨界電流特性; 大容量電流導体

MgB_2is suitable superconducting material to the mass production applications such as power cables and large coils compared with the other superconducting materials because it has many features which are a higher critical temperature(Tc) of 39 K, simple binary chemical composition, lower specific gravity and relatively low cost material. And MgB_2is the material which is interested in the application in influential liquid hydrogen temperature(20K) as a new energy source due to the higher Tc property. In this study, we investigated about the optimum wire configuration and mechanical property of MgB_2wire for the higher capacity strand cables based on the power cable application under the 20 K operation.

MgB_2超导材料具有超导临界温度高（39K）、二元化学组成简单、比重小、材料成本低等特点，是一种适合于大规模生产的超导材料，如电力电缆、大型线圈等。而MgB_2由于其较高的Tc特性，在液氢温度较高的地区（20K）作为新能源有着广阔的应用前景。本文以20 K高温下的电力电缆应用为背景，研究了用于大容量绞合电缆的MgB_2线材的最佳结构和力学性能。

项目成果

Jc enhancement of the Cu addition MgB_2 multifilamentary wires synthesized with low temperature diffusion process for fusion applications

Jc增强用于熔合应用的低温扩散工艺合成的Cu添加MgB_2复丝线

• 发表时间: 2010
• 作者: 櫻井岳暁;大橋達也;北爪光;久保田正人;末益崇;秋本克洋;菱沼良光
• 通讯作者: 菱沼良光

Ambient temperature dependence on superconducting properties of MgB_2 wires synthesized with low temperature diffusion process"

低温扩散法合成的MgB_2线材超导性能随环境温度的变化"

• 发表时间: 2010
• 期刊: Journal of Physics, conf.ser.
• 作者: 菱沼良光;その他
• 通讯作者: その他

The formation mechanism of the V_3Ga phase on the high Ga content Cu-Ga compound/V diffusion reaction through the high temperature XRD analysis

通过高温XRD分析高Ga含量Cu-Ga化合物/V扩散反应中V_3Ga相的形成机理

• 发表时间: 2011
• 作者: Y.Hishinuma;et.al.
• 通讯作者: et.al.

低温拡散法にて作製したCu添加MgB_<2>多芯線材の高温特性

低温扩散法制备加Cu MgB_<2>多芯线的高温性能

• 发表时间: 2009
• 作者: K. Otani;Y. Shiraki;Y. Baba;N. Nagaoka;A. Ametani;and N. Itamoto;菱沼良光
• 通讯作者: 菱沼良光

Development of low activation superconducting material for the feedback coil operated around D-T plasma

开发用于围绕 D-T 等离子体运行的反馈线圈的低活化超导材料

• 发表时间: 2010
• 期刊: Proc. Of IAEA Fusion Energy Conf
• 作者: K.Okita;Y.Hatanaka;A.Adachi;T.Fujiyoshi;T.Sueyoshi;T.Doi;菱沼良光
• 通讯作者: 菱沼良光