Research on Upper Limits of Critical Temperature of Practical Superconductors by Solid-State Chemistry
Research on Upper Limits of Critical Temperature of Practical Superconductors by Solid-State Chemistry
批准号:
19360293
负责人:
SHIMOYAMA Jun-ichi
金额:
$13.15万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2007
资助国家:
日本
项目状态:
已结题
起止时间:
2007 至 2009
中文摘要
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英文摘要
Enhancement of critical temperatures (T_c) of practical superconductors with high T_c has been attempted by precise control of their chemical compositions. For Bi-based oxide superconductors, T_c of Bi(Pb)2223 tapes was successfully enhanced up to 116K with maintaining strong grain coupling. On the other hand, nonstoichiometry in cation compositions of Y123 and heavy-RE123 oxide was discovered. The cation nonstoichiometry was found to seriously degrade superconducting properties, such as T_c and critical current properties. This new knowledge gave a new guideline to develop high performance materials.
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Improved Flux Pinning Properties of Bi-Based Superconductors by Dilute RE-Doping
通过稀稀土掺杂改善铋基超导体的磁通钉扎性能
DOI:
--
发表时间:
2009
期刊:
IEEE Trans.Appl.Supercond Vol. 19
影响因子:
--
作者:
[K. Takimoto, J. Shimoyama, Y. Kageshima, H. Ogino, S. Horii, K. Kishio]
通讯作者:
K. Kishio
Enhanced T_c of Bi(Pb)2223 Sintered Bulks up to 115K
Bi(Pb)2223 烧结块的 T_c 增强至 115K
DOI:
--
发表时间:
2008
期刊:
J.Phys.Conf.Series (印刷中)(掲載確定)
影响因子:
--
作者:
[A.Tanimoto, J.Shimoyama, S.Horii and K.Kishio]
通讯作者:
S.Horii and K.Kishio
"RE123、Bi系超伝導体における最適キャリアドープ状態"
“Bi 基超导体 RE123 中的最佳载流子掺杂状态”
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[下山 淳一, 浅沼 匠, 谷本 亮, 荻野 拓, 堀井 滋, 岸尾 光二]
通讯作者:
岸尾 光二
RE系超伝導体における金属不定比性と超伝導特性
稀土基超导体中的金属非化学计量和超导特性
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[下山淳一, 加來宏一, 佐藤伸也, 荻野拓, 岸尾光二, 堀井滋]
通讯作者:
堀井滋
Y123における金属不定比性
Y123 中的金属非化学计量性
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[下山淳一, 加來宏一, 佐藤伸也, 石井悠衣, 山崎裕也, 荻野拓, 堀井滋, 岸尾光二]
通讯作者:
岸尾光二
共 29 条
Clarification of Determining Factors of Irreversibility Fields in High-Tc Superconductors with Short Coherence Length
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批准号:23360007
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$11.73万
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财政年份:2011
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负责人:SHIMOYAMA Jun-ichi
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依托单位:
Development of New High-Tc Superconductors with Record-High Tc by Synthesis under High Oxygen Pressures
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批准号:10650820
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.24万
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财政年份:1998
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负责人:SHIMOYAMA Jun-ichi
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依托单位:
海外基金