论文部分内容阅读
Nd_2Fe_(14)B相是一种四方晶相,属P42/mnm(D_(4h)~(14))空间群,可描述为富Nd层和Fe层的交替堆垛层状结构。最近,我们从典型的Nd-Fe-B永磁合金吸放氢后的X射线衍射(XRD)图谱分析发现,Nd_2Fe_(14)B相在吸放氢后其层片间变得极易分裂,稍经研磨即可获得以(001)为解理面的层片状粉末。
The Nd 2 Fe 14 B phase is a tetragonal phase and belongs to the space group P42 / mnm (D_ (4h) ~ (14)), which can be described as an alternating stack of Nd-rich and Fe-rich layers. Recently, X-ray diffraction (XRD) pattern analysis of typical Nd-Fe-B permanent magnetic alloys after absorbing and releasing hydrogen showed that the layer of Nd 2 Fe 14 B phase became very easy to split after absorbing and releasing hydrogen, A slightly lamellar powder with (001) cleavage plane can be obtained.