Effects of textured micro-structure on the critical current anisotropy of MgB2 superconductor tapes

织构化微结构对MgB2超导带材临界电流各向异性的影响

• 批准号: 23560885
• 负责人: KURODA Tsuneo
• 金额: $ 3.41万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560885/
• 关键词: 結晶・組織制御; 硼化マグネシウム; 臨界電流; 異方性; 集合組織; 硼化マグネシウム超伝導テープ材; エクスシチュウ・パウダー・イン・チューブ法; MgB2超伝導テープ材; Ex situ法パウダー・イン・チューブ法; 異方的磁界依存性

The MgB2 superconductor has been regarded as a promising material for superconducting magnet uses. In this study, we investigated the correlation between the critical current anisotropy and the microstructure of the ex situ powder-in-tube processed MgB2 tapes for obtaining a clue to some improvements in the critical current properties from the viewpoint of making use of the critical current anisotropy. The hard sheath material enhanced the critical current in high magnetic fields through the roll-induced texturing of the tape core, with respect to different orientation relations between the tape and the applied field. Additionally, results of using the slip casting method for fabricating textured powders are reported.

MgB_2超导体被认为是一种很有前途的超导磁体材料。在这项研究中，我们研究了临界电流各向异性和非原位粉末管处理的MgB2磁带的微观结构之间的相关性，从利用临界电流各向异性的角度获得一些改善临界电流性能的线索。硬鞘材料通过卷致织构的磁带芯，相对于不同的取向关系的磁带和所施加的字段之间的临界电流在高磁场增强。此外，使用粉浆浇注法制造织构粉末的结果报告。

项目成果

Effects of the texture on the critical-current anisotropy of powder-in-tube processed MgB2 tapes

织构对管内粉化MgB2带材临界电流各向异性的影响

• 发表时间: 2012
• 作者: T. Kuroda;T. Nakane and H. Kitaguchi
• 通讯作者: T. Nakane and H. Kitaguchi

Correlation between the critical current anisotropy and the microstructure of ex situ-processed MgB2 tapes using carbon-substituted powder

碳代粉末异位加工MgB2带材临界电流各向异性与微观结构的相关性

• 发表时间: 2013
• 作者: T. Kuroda;H. Fujii;S. Ye and H. Kitaguchi
• 通讯作者: S. Ye and H. Kitaguchi

Correlation between the critical current anisotropy and the microstructure of ex situ processed MgB_2 tapes treatment using carbon-substitution treatment

碳替代处理异位MgB_2带材临界电流各向异性与微观结构的相关性

• 发表时间: 2014
• 期刊: Physics Procedia
• 作者: T. Kuroda;H. Fujii;S. Ye and H. Kitaguchi
• 通讯作者: S. Ye and H. Kitaguchi

Correlation between the critical current anisotropy and the microstructure of ex situ processed MgB_2 tapes using carbon-substituted powder

碳代粉末异位加工MgB_2带材临界电流各向异性与微观结构的相关性

• 发表时间: 2013
• 作者: T. Kuroda;H. Fujii;S. Ye and H. Kitaguchi
• 通讯作者: S. Ye and H. Kitaguchi

Effects of the texture on the critical-current anisotropy of powder-in-tube processed MgB_2 tapes

织构对管内粉化MgB_2带材临界电流各向异性的影响

• 发表时间: 2012
• 作者: T. Kuroda;T. Nakane and H. Kitaguchi
• 通讯作者: T. Nakane and H. Kitaguchi