HDDR三元NdFeB各向异性材料的制备  

Fabrication of Ternary NdFeB Anisotropy Powder by HDDR Process

作　　者：韩景智[1] 孙爱芝[1] 刘涛[2] 肖耀福[1] 王润[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]安泰科技股份有限公司,北京100081

出　　处：《北京科技大学学报》2002年第2期137-140,共4页Journal of University of Science and Technology Beijing

基　　金：国家863计划新材料领域资助项目(No.2001AA324016)

摘　　要：研究了 ＨＤＤＲ三元 ＮｄＦｅＢ各向异性磁粉的制备工艺．发现脱氢速度对 ＨＤＤＲ三元各 向异性ＮｄＦｅＢ的磁性能具有显著影响；缓慢的脱氢处理有助于材料获得高的各向异性．在最佳 工艺条件下，可获得磁能积为 ８４ ｋＪ·ｍ３的 ＨＤＤＲ三元 ＮｄＦｅＢ各向异性粘结磁体．The preparation process of HDDR ternary NdFeB anisotropic powder was studied. The research results showed that the effects of desorption rate of hydrogen on the magnetic properties of HDDR ternary NdFeB anisotropy were remarkable, and slow desorption treatment was beneficial to the attainment of strong anisotropy. By the optimum HDDR treatment, the HDDR ternary NdFeB anisotropy bonded magnet with Br of 0.78 T,iHc of 640 kA·m-1 and (BH)max of 84kJ·m-3 can be obtained.

关 键 词：HDDR 三元NdFeB 各向异性 材料 制备 磁粉 

分 类 号：TF125.8[冶金工程—粉末冶金] TG132.27[冶金工程—冶金物理化学]