Analysis of NdFeB Bonded Magnet Behaviors Within High-Frequency Field and High Temperature Using Micromagnetic Simulator

Akagi Fumiko; Honkura Yoshinobu

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Analysis of NdFeB Bonded Magnet Behaviors Within High-Frequency Field and High Temperature Using Micromagnetic Simulator

机译：使用微磁模拟器分析高频磁场和高温下NdFeB粘结磁体的行为

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摘要

Motors of hybrid vehicles and electric vehicles are anticipated to become smaller and have higher rotational speed. However, the small motors with high rotational speed may demagnetize the permanent magnets of motors by applying a high-frequency field of kHz at temperatures over 400 K. This demagnetization also depends on a static dc-field –4 kOe. We call this demagnetization phenomena magnetic fatigue. In this paper, magnet behaviors within a high-frequency field and at high temperature were simulated using a micromagnetic simulator.

机译：混合动力汽车和电动汽车的电动机有望变得更小并且具有更高的转速。但是，具有高转速的小型电动机可能会通过在超过400 K的温度下施加kHz的高频磁场来使电动机的永磁体消磁。这种消磁还取决于静态直流磁场–4 kOe。我们称这种退磁现象为磁疲劳。在本文中，使用微磁模拟器模拟了高频磁场和高温下的磁体行为。

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来源
《Magnetics, IEEE Transactions on》 |2015年第11期|1-4|共4页
作者
Akagi Fumiko; Honkura Yoshinobu;
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作者单位

Department of Applied Physics, Kogakuin University, Tokyo, Japan;

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原文格式 PDF
正文语种 eng
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关键词
High-frequency field; Magnetic fatigue; NdFeB anisotropic bonded magnet; high frequency field; magnetic fatigue; permanent magnet;

机译：高频磁场磁疲劳NdFeB各向异性粘结磁体高频磁场磁疲劳永磁;

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1. Magnet Behavior in High Frequency Field Using Micromagnetic Simulator [J] . F. Akagi, Y. Honkura 日本磁気学会学術講演概要集 . 2014,第38期

机译：使用微磁模拟器的高频场中的磁体行为
2. Comparison and analysis of sodium silicate and epoxy bonded NdFeB magnets [J] . Yu-xiaYin, Rui-jin Hu, Wei-qiang Liu, Materials science forum . 2016,第pta1期

机译：硅酸钠和环氧粘结钕铁硼磁体的比较和分析
3. Thermal Analysis Investigation of NdFeB Bonded Magnets [J] . Daniel Rodrigues, Gilberto V. Concilio, Elisa P. da Rocha, Materials science forum . 2014,第期

机译：钕铁硼粘结磁体的热分析研究
4. Analysis of magnet behaviors within high frequency field and high temperature using micromagnetic simulator [C] . Akagi F., Honkura Y. 2015 IEEE Magnetics Conference . 2015

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5. An analysis of neutron radiation effects on NdFeB permanent magnets. [D] . Samin, Adib J. 2014

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Analysis of NdFeB Bonded Magnet Behaviors Within High-Frequency Field and High Temperature Using Micromagnetic Simulator

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