| Project/Area Number |
26889005
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Tohoku University |
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Principal Investigator |
TSUCHIYA Yuji 東北大学, 金属材料研究所, 研究支援者 (50736080)
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| Project Period (FY) |
2014-08-29 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 高温超伝導コイル / クエンチ保護 / 温度イメージング / 可視化技術 / 強磁場 / 超伝導マグネット / 高温超伝導線材 |
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| Outline of Final Research Achievements |
We developed the cryogenic thermography for magnet application of the high temperature superconducting tapes to solve the local heating (hotspot) problem.
On the first year, Eu-TFC is revealed to be applicable for cryogenic thermography by using fluorescent spectroscopy at low temperature and high field. In parallel, a cryostat with an imaging system for the cryogenic thermography with a high field and a large current capacity was developed.
On the second (last) year, hotspots in REBCO tapes and a REBCO coil were observed using the cryostat. The normal zone propagation was visualized in the REBCO tapes. Finally, the hotspot the degradation area in the REBCO coil was identified at the overcorrect state by using the cryogenic thermography.
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