| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Magnetic field effects on the reaction and the phase formation of Mn-based ferromagnets were investigated. In this study, the reactive sintering of MnBi, and phase formation of ferromagnetic phase of Mn-Al alloys were focused on. Reactive sintering of MnBi was enhanced by magnetic fields. It was found that magnetic field enhanced the number of formed MnBi phase around Mn grain at the initial stage of the reaction. Furthermore, almost complete uniaxial oriented MnBi bulk samples were obtained by both solid-phase and liquid-phase sintering under high magnetic field.
Phase formation of ferromagnetic Mn-Al alloys was also enhanced by in-field annealing. The field-induced enhancement of the phase formation of ferromagnetic Mn-Al phase was largest for the annealing at 623 K, which was just below Curie temperature of ferromagnetic phase.
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