| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
In this study, we aim to produce a MgB2 superconducting bulk magnet (quasi-permanent magnet) generating strong Tesla-class magnetic fields with high homogeneity, and obtained the following results successfully; 1) the dense MgB2 bulk with the relative density over 90% was fabricated by a infiltration method without physical pressing mechanism, 2) the pinning of grain boundaries was optimized by controlling the grain size of MgB2, 3) the pinning properties was enhanced by doping the titanium group elements, and the origin of which was clarified by various microstructural analysis techniques such as the electron backscattered diffraction.
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