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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chaowei Lin Shuai Guo Wenbiao Fu Renjie Chen Don Lee Aru Yan |
| Copyright Year | 1965 |
| Abstract | Dysprosium diffusion and microstructure alteration behaviors in sintered Nd-Fe-B magnets via dual-alloy method have been investigated. The sintered magnets were prepared by blending Dy-free and Dy-rich powders with varying proportions. Results indicate that Dy element has already diffused from Dy-rich powders into the 2:14:1 phase of Dy-free powders and tended to homogenize in the bulk magnet, attributed to the coalescence of grains and dysprosium element concentration gradient. In addition, Dy and Pr/Nd elements counterdiffusion process redistributes the grain boundaries homogeneously. The fracture surfaces of magnets prepared via dual-alloy method almost appear intergranular fracture. It demonstrates that both of (Nd/Pr, Dy)2Fe14B phase formation and microstructure alteration have favored to coercivity enhancement and thermal stability improvement of the magnets. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3233 |
| Ending Page | 3236 |
| Page Count | 4 |
| File Size | 1754065 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 49 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Perpendicular magnetic anisotropy Magnetic resonance imaging Coercive force Powders Saturation magnetization Microstructure microstructure modification Coercivity enhancement dual-alloy method dysprosium diffusion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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