2013 Fiscal Year Final Research Report
Bulk permanent magnet with Fe/Ni multi-layered structure prepared by a pack rolling
| Project/Area Number |
24656212
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Nagasaki University |
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Principal Investigator |
NAKANO Masaki 長崎大学, 工学(系)研究科(研究院), 教授 (20274623)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUNAGA Hirotoshi 長崎大学, 大学院工学研究科, 教授 (10136533)
YANAI Takeshi 長崎大学, 大学院工学研究科, 助教 (30404239)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 電気・電子材料 / 規則化合金 / Fe-Ni / 永久磁石 / 異方性磁界 / 積層圧延 / 積層構造 / 保磁力 |
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| Research Abstract |
In this study, we tried to prepare a bulk permanent magnet with Fe and Ni multi-layered structure, which is one of good candidates for a rare earth-free magnet, by using a pack rolling. The combination of an induction heating and a pack rolling enabled us to obtain a 26 multi-layered Fe-Ni sheet with the thickness of approximately 30 microns under the rolling rate up to approximately 96 %. It, however, was difficult to increase the rolling rate and reduce the thickness of one layer because of the work hardening. In addition, further investigation was required to control the ordering and texture of the samples.
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