摘要
研究了添加镨氢化物对烧结Nd-Fe-B磁体磁性能、微观结构和抗弯强度的影响。结果表明:添加镨氢化物可以有效提高磁体的抗弯强度,同时对磁体的矫顽力有一定提高。SEM微观形貌观察表明:添加镨氢化物可有效改善磁体的微观结构,有效提高了主相晶粒原子间扩散速度,从而改变了磁体的微观结构和提高了烧结磁体的抗弯强度。
The effects of PrHx addition on the magnetic properties, microstructure and bending strength have been studied for the sintered Nd-Fe-B magnets. It shows that the bending strength and coercivity can be effectively improved and enhanced by the addition of PrHx for the experimental magnets. The magnets have the optimal microstructure according to SEM images, and the atoms diffusion can be potentially improved among the magnetic main phase Nd2Fel4B after the PrHx addition.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第6期1088-1090,共3页
Rare Metal Materials and Engineering
基金
国家自然科学基金项目(50371019)资助
关键词
烧结NDFEB磁体
抗弯强度
沿晶断裂
稀土氢化物
sintered NdFeB magnets
bending strength
intergranular fracture
rare earth hydrides
