使用放电等离子烧结(SPS)可在短时间内将非晶Nd13.5Fe80.5B6粉末晶化,且可获得接近于全致密的各向同性磁体,其剩磁、矫顽力、最大磁能积分别为Br=0.8T,Hci=1346kA/m,(BH)m=108kJ/m3.热变形后,随变形量的增加,硬磁相晶粒的取向度增加,Br及(BH)m大幅增加,在65%时达最大:Br =1.41 T,(BH)m=342kJ/m3;同时硬磁相晶拉由最初的球形,沿垂直于压力方向长大至盘状.而当变形量继续增大至73%时,晶粒发生严重长大,从而导致磁性能下降.
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