2011 Fiscal Year Final Research Report
Strain Effect on Critical Current of Practical Superconductivity Wires under High Magnetic Field
| Project/Area Number |
21360312
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical properties of metals
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| Research Institution | 公益財団法人応用科学研究所 (2011)
Institute of Brain and Blood Vessels (2010)
Research Institute for Applied Sciences (2009) |
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Principal Investigator |
OSAMURA Kozo 公益財団法人応用科学研究所 (50026209)
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| Co-Investigator(Kenkyū-buntansha) |
MACHIYA Shutaro 大同大学, 中性子工学・工学部, 准教授博士 (40377841)
SUZUKI Hiroshi 日本原子力研究開発機構, 中性子工学, 研究員博士 (10373242)
TSUCHIYA Yoshinori 物質・材料研究機構, 量子ビームセンター, 特別研究員博士 (10455298)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 超伝導 / 高温超伝導 |
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| Research Abstract |
In order to industrialize fully the superconductivity technology, it is indispensable to solve the stress/strain problems for improving the critical current and strengthening the practical superconducting wires. It has been succeeded to measure directly the thermal strain as well as lattice strain exerted on superconducting components of Nb_3Sn, BSCCO and YBCO wires by means of quantum beam techniques. On the basis of knowledge of local strains, it becomes possible to investigate the strain dependence and scaling rule of critical currents with respect to magnetic field, deviatoric strain, grain boundary weak link and micro-twin. Further the calculation methods have been proposed for the local strain and the strength of the practical composite superconducting wires.
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Research Products
(14 results)
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[Journal Article] Reversible Strain Limit of Critical Currents and Universality of Intrinsic Strain Effect for REBCO-Coated Conductors2009
Author(s)
Osamura K, Sugano M, Nakao K, Siohara Y, Ibi A, Yamada Y, Nakashima N, Nagaya S, Saitoh T, Iijima Y, Aoki Y, Hasegawa T, and Kato T
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Journal Title
Supercond. Sci. Technol
Volume: 22
Pages: 025015-025021
DOI
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[Journal Article] REVERSIBLE STRAIN LIMIT OF CRITICAL CURRENTS AND THEIR UNIVERSAL ELASTIC STRAIN EFFECT FOR REBCO COATED CONDUCTORS FABRICATED BY DIFFERENT TECHNIQUES2008
Author(s)
Osamura K, Sugano M, Nakao K, Siohara Y, Ibi A, Yamada Y, Nakashima N, Nagaya S, Saitoh T, Iijima Y., Aoki Y, Hasegawa T, and Kato T
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Journal Title
Proceed. of ICEC22-ICMC
Pages: 971-976
DOI
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