Supported by the National Natural Science Foundation of China (Grant No. 50671055)
The effect of the grain boundary microstructure on the anisotropy and coercivity was investigated in an HDDR Nd-Fe-B permanent magnetic alloy. Considering the special microstructure of its magnetic powder grain, an an...
Supported by National Natural Science Foundation of China (Grant Nos. 50371046 and 50671055) ; the Research Fund for Doctoral Programme of High Education of China (Grant No. 20040422012)
The theories and models of exchange-coupling interaction between grains in nanocrystaUine magnetic materials are introduced here. Their insufficiencies and distinctions from the experimental results are pointed out, a...