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Author:

岳明 (岳明.) (Scholars:岳明) | 张东涛 (张东涛.) (Scholars:张东涛) | 王春国 (王春国.) | 路清梅 (路清梅.) | 刘卫强 (刘卫强.) (Scholars:刘卫强) | 吴琼 (吴琼.) | 张红国 (张红国.)

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incoPat zhihuiya

Abstract:

一种制备高矫顽力各向异性纳米晶钕铁硼永磁体的方法,属于磁性材料技术领域。本发明采用放电等离子烧结技术,将NdFeB粉和TbH3纳米粉的混合料经热压热变形制得各向异性NdFeB磁体,后经热处理获得一种高矫顽力的各向异性纳米晶NdFeB磁体。当TbHx的添加量为0.7wt.%时,热变形磁体经650℃退火后,相较于同温度下未经掺杂热变形磁体的矫顽力提高53.3%,剩磁降低2.2%。与传统粉末冶金工艺相比,有Tb添加量少、矫顽力提高明显、剩磁损害小的优势。而且利用放电等离子烧结制备的热变形纳米晶NdFeB磁体在矫顽力、热稳定性能、耐腐蚀性能以及力学性能方面也有提高。

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Patent Info :

Type: 发明授权

Patent No.: CN201410324242.6

Filing Date: 2014-07-09

Publication Date: 2016-08-24

Pub. No.: CN104103414B

Applicants: 北京工业大学

Legal Status: 授权

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 24

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