NdFe10.5V1.5Nx磁粉的磁性

北京邮电大学学报 ›› 1998, Vol. 21 ›› Issue (2): 43-45.

NdFe_10.5V_1.5N_x磁粉的磁性

王永钢,葛森林

北京邮电大学基础科学部, 北京 100876

收稿日期:1997-07-14 出版日期:1998-03-10
基金资助:

Magnetic Properties of NdFe_10.5V_1.5N_x

Wang Yonggang, Ge Senlin

Department of Basic Science, Beijing University of Posts and Telecommunications, Beijing 100876

Received:1997-07-14 Online:1998-03-10
Supported by:

摘要/Abstract

摘要：

通过控制合金热处理条件、氮化温度与时间和氮化前后颗粒尺寸的大小, 成功的制备了高性能的各向异性NdFe_10.5V_1.5N_x磁粉.其磁性能为B_r=1.08 T, H_cj=342 kA/m, (BH)_max= 137 kJ/m³,T_c＞820 K.对氮含量与晶体结构和内禀磁性的关系研究表明: 氮含量对制备高性能的氮化物磁粉是至关重要的.与快淬NdFeB相比, NdFe_10.5V_1.5N_x磁粉具有高磁能积和低价格的优点, 是一种永磁材料.

关键词: 永磁材料, 内禀磁性, 氮化物

Abstract:

High performance powders of NdFe_10.5V_1.5N_x with B_r=1.08 T, H_cj=342 kA/m,(BH)_max=137 kJ/m, and T_c＞820 K were successfully prepared by optimizing the homogenizing treatment of parent alloys, nitrogenation temperature and time, and particle size before and after nitrogenation.Therelationship of the crystallographic structure and the intrinsic magnetic properties to the nitrogen content is investigated.It is found that the nitrogen content is vital to obtaining high performance magnetic powders based on NdFe_10.5V_1.5N_x. In comparison with quenching Nd-Fe-B powders, NdFe_10.5V_1.5N_x powders are characteristics of a larger maximum energy product and a lower cost.Obviously, it is of significant in permanentmagnet applications.

Key words: permanent magnetic materials, intrinsic magnetic properties, nitrides

中图分类号:

TM273

王永钢,葛森林. NdFe_10.5V_1.5N_x磁粉的磁性[J]. 北京邮电大学学报, 1998, 21(2): 43-45.

Wang Yonggang, Ge Senlin. Magnetic Properties of NdFe_10.5V_1.5N_x[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 1998, 21(2): 43-45.