添加La对NdFeB微观组织结构及快淬薄带磁性能的影响  

Effects of La Addition on Microstructure of NdFeB and Magnetic Properties of the Melt-spun Ribbons

作　　者：陈小龙 马杰 戎茂华[1] 王江[1] CHEN Xiao-long;MA Jie;RONG Mao-hua;WANG Jiang(School of Material Science and Engineering,Guilin University of Electronic Technology, Guilin 541004.China)

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004

出　　处：《稀有金属与硬质合金》2018年第2期16-20,共5页Rare Metals and Cemented Carbides

基　　金：国家"973"重点基础研究项目(2014CB643703);国家重点基础研究发展计划项目(2016YFB0700901);国家自然科学基金项目(51761008;51461013);广西自然科学基金项目(2016GXNSFDA380015;2016GXNSFGA380001)

摘　　要：研究了添加不同含量稀土La的Nd_(2.28)Fe_(13.58)B_(1.14)合金微观组织结构以及快淬薄带的磁性能。实验结果表明,添加La后,合金的物相组成仍为Nd_2Fe_(14)B相;随着La添加量的增加,Nd_2Fe_(14)B相的晶胞体积略有增大;合金快淬薄带的矫顽力与剩磁均下降,居里温度也随之降低。The study was carried out on the microstructure of Nd2.28 Fe13.58B1.11 alloy with different content of rare earth La and the magnetic properties of the melt-spun ribbons. The experimental results show that the main phase of the alloy is still Nd2 Fe14 B phase after La addition. With the increase of La addition, the crystal cell volume of Nd2Fe14B phase slightly increases,both the coercivity and remanence of the meltspun ribbons decreases,and the Curie temperature also decreases.

关 键 词：钕铁硼 LA 物相组成 晶胞体积 快淬薄带 磁性能 

分 类 号：TG146.454[一般工业技术—材料科学与工程]