标题：Low hydrogen pressure induced high anisotropy in HDDR-treated Nd13Fe75Co4B8 powders
作者：Han, Guangbing ;Fu, Shuang
作者机构：[Han, Guangbing ] School of physics, Shandong University, Ji'nan, Shandong, 250100, China;[Fu, Shuang ] School of Technology, Shandong University of T 更多
会议名称：2nd International Conference on Materials and Products Manufacturing Technology, ICMPMT 2012
会议日期：September 22, 2012 - September 23, 2012
来源：Advanced Materials Research
摘要：High anisotropic Nd13Fe75Co4B8 magnetic powders are obtained with low desorption H2-pressure of the hydrogenation disproportionation desorption recombination (HDDR) process. Scanning electron microscopy (SEM) indicates a lamella structure in the 20 kPa desorption H2-pressure HDDR products and may be related to the high anisotropy. The magnetic powders with a desorption H2-pressure of 20 kPa have the magnetic properties of Br =0.86 T and Mr/Ms =0.81.This shows that the H2-pressure has great effect on the formation of crystal texture in the HDDR Nd-Fe-B powders. © (2013) Trans Tech Publications, Switzerland.