2014 Fiscal Year Final Research Report
Development of Fe-Ni magnets using crystallization from amorphous state and technology for synthesis of artificial super-multi-layered structure
| Project/Area Number |
25630129
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Nagasaki University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | 磁性体 / Fe-Ni / 磁石 / 規則化 / 結晶化 |
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| Outline of Final Research Achievements |
Fe-Ni magnets are promising candidates for next-generation magnets free from rare-earth elements, and extremely thin magnets have been successfully synthesized. In this study, we tried to develop chips(10 - 30 microns thick) of Fe-Ni magnets by using crystallization from amorphous state and technology for synthesis of artificial super-multi-layered structure, and succeeded to synthesize 2-microns-thick high coercivity layer on the chips. The corecivity of the chips including magnetically soft parts were approximately 15 kA/m. For the X-ray diffraction pattern for the synthesized chips, we observed the peak which can be indexed to the diffraction from the L10 phase. A further increase in the thickness of high coercivity layer is needed for preparation of a bulk magnet.
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| Free Research Field |
電子・電気材料工学
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