Optimizing the Heat treatment of Rare Earth-Transition Metal Sintered Magnets

被引：7
作者：
de Campos, Marcos Flavio [1 ]
de Castro, Jose Adilson [1 ]
机构：
[1] Univ Fed Fluminense, EEIMVR, Volta Redonda, RJ, Brazil
来源：
ADVANCED POWDER TECHNOLOGY VII | 2010年 / 660-661卷
关键词：
heat treatment; coercivity; diffusion; magnets; SMCO5; MAGNETS; SM(COFECUZR)(Z) MAGNETS; PERMANENT-MAGNETS; COERCIVITY; FE; ND; BEHAVIOR; MICROSTRUCTURE; ALLOYS; CO;
D O I：
10.4028/www.scientific.net/MSF.660-661.290
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Rare earth transition metals magnets, as for example SmCo(5), NdFeB and Sm(CoCuFeZr)z magnets are, very often, submitted to a post-sintering heat treatment where the coercivity increases. In many cases, a slow cooling between the sintering and the annealing temperatures is applied. To optimize the time and cooling rate of heat treatment, it was developed a model using the finite volume method. This model takes into account the diffusivities of the different atom species and also the boundaries of phase diagrams.
引用
收藏
页码：290 / 295
页数：6
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