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Nd-Fe(Co,Al,Ga)-B合金的磁性及Al,Co,Ga原子的晶位占据研究 被引量:4

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摘要 本文研究了Nd-Fe(Co,Al,Ga)-B永磁合金的磁性能并且用Mssbauer谱仪等手段研究了Al,Co,Ga诸原子在上述合金中的晶位占据。选用粉末冶金方法研制出上述实用磁体,其磁性能是:B_r=1.19T,_jH_G=1130kA/m,(BH)_(max)=262kJ/m^3,α(B,)=0.04%/℃,T_c=450—550℃。研究结果发现Al原子主要占据j_2晶位;Ga原子优先占据j_2和k_2晶位;Co原子优先占据8 j_2,16k_2晶位。Co在四方相中占据上述晶位是造成永磁合金居里温度上升的原因。
出处 《中国科学(A辑)》 CSCD 1991年第5期538-545,共8页 Science in China(Series A)
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同被引文献27

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