Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors
The working environment of permanent magnets in high-speed motors is harsh, because they are seriously affected by multi-physical fields such as temperature, stress, weak magnetic control field, etc., and irreversible demagnetization is easy to occur under the extreme working conditions. In this wor...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2024-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/9.0000757 |
| _version_ | 1797227605064155136 |
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| author | Weizhou Li Jungang Cheng Xusheng Lu Yangyang Li Dong Zhao Wenli Pei Ruilin Pei |
| author_facet | Weizhou Li Jungang Cheng Xusheng Lu Yangyang Li Dong Zhao Wenli Pei Ruilin Pei |
| author_sort | Weizhou Li |
| collection | DOAJ |
| description | The working environment of permanent magnets in high-speed motors is harsh, because they are seriously affected by multi-physical fields such as temperature, stress, weak magnetic control field, etc., and irreversible demagnetization is easy to occur under the extreme working conditions. In this work, a model of high-speed Interior Permanent magnet Motor is established, the easy demagnetization area of the permanent magnet is simulated by electromagnetic and thermal simulations to determine, and its local anti-demagnetization optimization is performed. Dy/Tb co-infiltration is carried out in the easy demagnetization region of the permanent magnets, and the process of selective zone diffusion is analyzed based on the principle of selective zone grain boundary diffusion. Through microscopic observation and macroscopic magnetic performance test, the effect of local anti-demagnetization performance enhancement of the optimized permanent magnets is verified. The results show that the magnetic properties of the optimized permanent magnets are obviously improved after the optimization of the selected zones. The present approach is important for the follow-up less heavy-rare-earth research of permanent magnet and its application in high-speed motors. |
| first_indexed | 2024-04-24T14:43:27Z |
| format | Article |
| id | doaj.art-0b1a2bc9c1964ff784758544788fbe76 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-24T14:43:27Z |
| publishDate | 2024-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-0b1a2bc9c1964ff784758544788fbe762024-04-02T20:29:18ZengAIP Publishing LLCAIP Advances2158-32262024-03-01143035233035233-610.1063/9.0000757Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motorsWeizhou Li0Jungang Cheng1Xusheng Lu2Yangyang Li3Dong Zhao4Wenli Pei5Ruilin Pei6Shenyang University of Technology, Shenyang, ChinaNingbo Zhaobao Magnet Co., Ltd., Ningbo, ChinaShenyang University of Technology, Shenyang, ChinaShenyang University of Technology, Shenyang, ChinaNortheastern University, Shenyang, ChinaNortheastern University, Shenyang, ChinaShenyang University of Technology, Shenyang, ChinaThe working environment of permanent magnets in high-speed motors is harsh, because they are seriously affected by multi-physical fields such as temperature, stress, weak magnetic control field, etc., and irreversible demagnetization is easy to occur under the extreme working conditions. In this work, a model of high-speed Interior Permanent magnet Motor is established, the easy demagnetization area of the permanent magnet is simulated by electromagnetic and thermal simulations to determine, and its local anti-demagnetization optimization is performed. Dy/Tb co-infiltration is carried out in the easy demagnetization region of the permanent magnets, and the process of selective zone diffusion is analyzed based on the principle of selective zone grain boundary diffusion. Through microscopic observation and macroscopic magnetic performance test, the effect of local anti-demagnetization performance enhancement of the optimized permanent magnets is verified. The results show that the magnetic properties of the optimized permanent magnets are obviously improved after the optimization of the selected zones. The present approach is important for the follow-up less heavy-rare-earth research of permanent magnet and its application in high-speed motors.http://dx.doi.org/10.1063/9.0000757 |
| spellingShingle | Weizhou Li Jungang Cheng Xusheng Lu Yangyang Li Dong Zhao Wenli Pei Ruilin Pei Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors AIP Advances |
| title | Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors |
| title_full | Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors |
| title_fullStr | Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors |
| title_full_unstemmed | Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors |
| title_short | Enhancement of local anti-demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high-speed motors |
| title_sort | enhancement of local anti demagnetization ability of permanent magnet by selected area grain boundary diffusion toward high speed motors |
| url | http://dx.doi.org/10.1063/9.0000757 |
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