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材料研究学报  2001, Vol. 15 Issue (6): 615-618    
  论文 本期目录 | 过刊浏览 |
Nd2Fe14B/α-Fe纳米复相永磁合金微结构的形成
关颖;杨丽;张克勤; 刘建华;张静武;张湘义
燕山大学
引用本文:

关颖; 杨丽; 张克勤; 刘建华; 张静武; 张湘义 . Nd2Fe14B/α-Fe纳米复相永磁合金微结构的形成[J]. 材料研究学报, 2001, 15(6): 615-618.

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摘要: 研究了使用不同快淬速度制备的Nd3.6Pr5.4Fe83Co3B5合金中Nd2Fe14B/α-Fe复合纳米晶结构的形成。采用X射线(XRD)、透射显微(TEM)分析技术和振动样品磁强计(VSM)观测和测量了材料的微结构和磁性。结果表明,使用最佳淬速(20m/s)形成的Nd2Fe14B/α-Fe复合纳米晶结构晶粒细小,晶粒尺寸均匀。Nd2Fe14B相和α-Fe相的平均晶粒尺寸分别为14nm、16nm。合金中α-Fe相的体积分数为48.6%。纳米晶合金的磁性能为Jr=1.108T,Hc= 446.5kA/m,(BH)max=193.6kJ/m3,剩磁比Jr/Js=0.736。
关键词 Nd2Fe14B/α-Fe快淬纳米复合永磁合金    
Key words
收稿日期: 1900-01-01     
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