摘要
用８ＭＰａ的Ａｒ气雾化制取ＮｄＦｅＢ合金粉末，光学金相观察和Ｘ射线衍射分析表明，粉末主要由Ｎｄ２Ｆｅ１４Ｂ相组成。粉末具有一定的矫顽力，回火处理后矫顽力明显提高。不同粒度的粉末矫顽力存在差异，粉末越细其矫顽力越高。粉末初始磁化曲线与烧结ＮｄＦｅＢ磁体相似。
Two alloys were atomized by 8. OMPa Argon gas. Optical microstructure observation and X-ray diffraction analysis authenticated that the obtained powder is mainly composed of a tetragonal Nd2Fe14B phase. The tHe value of the powder is relatively higher compared with that of the powder from pulverizing as-cast Nd-Fe-B alloy bulk,and gives rises after annealing at 973K for an hour, The iHc value varies with the rang of particle diameter, the more finer the powder particles are, the more higher the tHe value is. The initial magnetization behavion of the powder is analogous to that of conventional as-cast magnets.
出处
《粉末冶金技术》
CSCD
北大核心
1995年第1期3-7,共5页
Powder Metallurgy Technology
