福建冶金2024，Vol.53Issue(1)：55-57,3.
掺杂Y对烧结钕铁硼微结构和性能影响研究
The Study on the Effects of Y Doping on the Microstructure and Magnetic Properties of Nd-Fe-B Sintered Magnet
黄清芳1
作者信息
- 1. 福建省稀土功能材料重点实验室,福建龙岩 366300||福建省长汀金龙稀土有限公司,福建龙岩 366300
- 折叠
摘要
Abstract
The influence of Y content on the microstructure and magnetic properties of Nd-Fe-B based sintered magnets were investigated in this work.Within the range of 0.0 at.%-3.0 at.%Y content,the remanence shows a decrease from 14.27 kGs to 14.09 kGs.Every increase of 1 at.%Y,the remanence decreases by about 0.06 kGs.The coercivity decreases dramatically from 17.78 kOe to 13.59 kOe.From the element distribution,the Y element mainly enters the main phase at 2:14:1.Compared with Nd2Fe14B or Pr2Fe14B,Y2Fe14B has a slightly lower saturation magnetization and extremely low magnetic crystal anisotropy field.Therefore,after doping with Y,the remanence of the magnet slightly decreases and the coercivity deteriorates sharply.Through DSC analysis,adding Y has no effect on Curie temperature of the magnet.关键词
Y含量/烧结钕铁硼/退磁曲线/居里温度Key words
Y content/sintered Nd-Fe-B/demagnetization curve/curie temperature引用本文复制引用
黄清芳..掺杂Y对烧结钕铁硼微结构和性能影响研究[J].福建冶金,2024,53(1):55-57,3.
