Improvement of coercivity of sintered NdFeB permanent magnets by heat treatment
Improvement of coercivity of sintered NdFeB permanent magnets by heat treatment
复制标题
DOI：
10.1016/s0304-8853(01)00967-2
复制
发表时间：
2002-04
影响因子：
2.7
通讯作者：
F. Vial;F. Joly;E. Nevalainen;M. Sagawa;K. Hiraga;K. T. Park
中科院分区：
文献类型：
--
作者：
F. Vial;F. Joly;E. Nevalainen;M. Sagawa;K. Hiraga;K. T. Park
本研究的目的是为了更好地了解Nd基磁体在热处理过程中发生的冶金转变。用扫描电镜和透射电镜对晶界进行了观察和分析。DSC允许优化热处理。显微结构的调查总是表明存在薄而光滑的富RE膜，与最高的结晶度。
The purpose of this study was to better understand the metallurgical transformations that occur during heat treatment of Nd-based magnets. DSC analysis and microstructural investigations of the grain boundaries with SEM and TEM were carried out. DSC permitted to optimize the heat treatment. Microstructural investigations always showed the presence of thin and smooth RE-rich film, associated with the highest coercivity.