2016 Fiscal Year Final Research Report
Study for magnetic field effects on phase formation of Mn-based magnetic materials, and the optimization of the synthesis under magnetic fields
| Project/Area Number |
26820281
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals/Metal-base materials
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| Research Institution | Kagoshima University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 強磁性 / 強磁場 / マンガン / 反応 / 相変態 |
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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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| Free Research Field |
強磁場材料科学
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