Micromagnetism and microstructure - tailoring of high-performance permanent magnets

被引：8
|
作者：
Goll, D [1 ]
机构：
[1] Max Planck Inst Metallforsch, D-70569 Stuttgart, Germany
来源：
ZEITSCHRIFT FUR METALLKUNDE | 2002年 / 93卷 / 10期
关键词：
nanocrystalline permanent magnets; nanostructured permanent magnets; micromagnetism; remanence enhancement; coercivity mechanism; Pr(2)Fe(14)B; Sm(2)(Co; Cu; Fe; Zr)(17);
D O I：
10.3139/146.021009
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The magnetic properties of hard magnetic materials are closely connected to their microstructure. The complexity of this correlation is demonstrated for the two most promising permanent magnet (pm) materials at present, namely nanocrystalline RE(2)Fe(14)B (RE = Nd,Pr) and nanostructured Sm(2)(Co, Cu, Fe, Zr)(17). In both cases the detailed analysis of the micro structure-property interaction by means of different high-resolution electron microscopy techniques, hysteresis loop measurements and the theory of micromagnetism results in a quantitative interpretation of the occurring hardening mechanisms, enabling a quite specific tailoring of optimized magnetic properties up to elevated temperatures.
引用
收藏
页码：1009 / 1018
页数：10
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