| 添加钴对HD制备NdFeB永磁体矫顽力的影响 |
| |
| 引用本文： | 泮敏翔,葛洪良,张朋越,朱津津,焦志伟,赵怡潞.添加钴对HD制备NdFeB永磁体矫顽力的影响[J].中国稀土学报,2010,28(2). |
| |
| 作者姓名： | 泮敏翔 葛洪良 张朋越 朱津津 焦志伟 赵怡潞 |
| |
| 作者单位： | 中国计量学院,浙江省磁学重点实验室,浙江,杭州,310018 |
| |
| 基金项目： | 浙江省科学计划，国家自然科学基金，浙江省自然科学基金，浙江省青年优秀教师基金 |
| |
| 摘 要： | 采用X射线衍射分析(XRD)和BH测试仪分别研究了添加Co对HD制备的NdFeB永磁体微结构和磁性能的影响规律。微结构研究表明,添加Co前后的永磁体都由主要的四方相Nd2Fe14B(P42/mnm)和微量的富Nd相构成;但添加Co明显改变了永磁体的取向特性和磁性能;Horta法计算表明Co掺杂降低了Nd(FeCo)B永磁体的(004),(006)和(008)晶面的极密度因子;室温下磁性能测试表明,添加Co后永磁体矫顽力有了明显提升,从2038 kA.m-1提升到2162 kA.m-1,提高了接近124 kA.m-1;Kronm櫣ller-Plot行为研究表明两合金的矫顽力机理均为磁畴成核机制,由于Co添加同时增大了微磁参数αk和Neff,这增加磁畴反转需要的磁场能,从而提高了矫顽力。
|
| 关 键 词： | 永磁体 Kronmüller-Plot 矫顽力 稀土 |
Effects of Cobalt Addition on the Coercivity of Sintered NdFeB Magnets Prepared by HD Method |
| |
| Pan Minxiang,Ge Hongliang,Zhang Pengyue,Zhu Jinjin,Jiao Zhiwei,Zhao Yilu.Effects of Cobalt Addition on the Coercivity of Sintered NdFeB Magnets Prepared by HD Method[J].Journal of the Chinese Rare Earth Society,2010,28(2). |
| |
| Authors: | Pan Minxiang Ge Hongliang Zhang Pengyue Zhu Jinjin Jiao Zhiwei Zhao Yilu |
| |
| Institution: | Pan Minxiang,Ge Hongliang,Zhang Pengyue,Zhu Jinjin,Jiao Zhiwei,Zhao Yilu(Magnetism Key Laboratory of Zhejiang Province,China Jiliang University,Hangzhou 310018,China) |
| |
| Abstract: | The effects of Co addition on the microstructure and magnetic properties of the NdFeB magnets by HD process were investigated by X-ray diffraction(XRD) and BH magnetic measuremeter in this paper.The results of the microstructure showed that both the permanent magnets with or without Co addition were composed of main amount of tetragonal Nd2Fe14B phase(P42/mnm)and trace amount of Nd-rich phase.With an increase of Co addition the orientation degree and magnetic properties of the magnets varied obviously.Co ad... |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
