双相纳米晶Nd_(10.1)Fe_(82.2-x)Co_5Zr_(2.7)B_x永磁材料的研究  

A Study of Double -Phase Nanocrystalline Nd_(10.1)Fe_(82.2-x)Co_5Zr_(2.7)B_x (x=6.2, 6.5, 6.7, 7) Permanent Materials

作　　者：吴义生[1] 倪建森[1] 冯珊珊[1] 徐晖[1] 周邦新[1] 黄照华[1] 

机构地区：[1]上海大学,上海200072

出　　处：《稀有金属材料与工程》2006年第11期1809-1812,共4页Rare Metal Materials and Engineering

基　　金：国家高技术研究发展计划(2002AA302602-2);上海市青年科技启明星项目(03QF14018);上海市纳米科技产业发展促进中心资助项目(0152nm020)

摘　　要：采用熔体快淬及退火方法制备了Nd10.1Fe(82.2-x)Co5Zr2.7Bx(x=6.2,6.5,6.7,7)纳米晶双相永磁体。结果表明,优化B的含量,可使晶粒细化、均匀,并对其磁性能有一定的影响,在x=6.7时,快淬速度为16m·s-1,有显著的剩磁增强作用,各向同性剩磁比Mr/Ms=0.758,并且Nd10.1Fe(82.2-x)Co5Zr2.7Bx粘结磁体出现最佳性能,其剩磁和最大磁能积分别为Br=0.72T,(BH)max=85.0kJ·m-3。Nanocrystalline Nd10.1Fe（82.2-x）Co5Zr2.7Bx（x=6.2, 6.5, 6.7, 7） permanent materials were prepared by melt-spun and subsequent heat treatment. The microstructures and magnetic properties of the alloys were investigated. The results show that optimal content of boron will improve the microstructures and magnetic properties of the alloys. At the wheel speed of 16 m·s^-1 and boron content of 6.7at%, the isotropic staturation remnaence ratio Mr/Ms is 0.758 and the optimal magnetic properties of the bonded magnets were obtained, Br=0.72 T, （Bn）max=85.0 kJ·m^-3.

关 键 词：ND-FE-B 纳米晶 粘结磁体 磁性能 稀土 

分 类 号：TB383.1[一般工业技术—材料科学与工程]