Nd9(Fe,In)_(85)B_6纳米复相永磁材料的结构与磁性能研究  

Structure and Magnetic Properties of Nanocomposite Nd9Fe_(85)- B_6Inx Prepared by Melt-Spinning Method

作　　者：张栋杰[1] 都有为[2] 

机构地区：[1]南京师范大学,江苏南京210097 [2]南京大学,江苏南京210093

出　　处：《稀有金属材料与工程》2005年第2期303-305,共3页Rare Metal Materials and Engineering

基　　金：江苏高校自然科学研究计划项目(03KJB430068)

摘　　要：用熔体快淬法制备了纳米复相结构 Nd9Fe85- B6Inx 永磁体,利用 XRD 和 VSM 等方法研究了 In 掺杂和热处理温度对其磁性能的影响。结果表明,在磁体 Nd9Fe85- B6Inx 中 In 掺杂可以提高其矫顽力和剩磁比,可改善磁体磁滞回线矩形度;有助于改善磁体 Nd9Fe85- B6Inx的热处理性能。在 Nd9Fe85- B6Inx 中,不掺杂 In 和掺杂 In 为 0.5 mol%时,具有最佳的矫顽力和磁能积,其值分别为 465 kA/m 和 145 kJ/m3。Nanocomposite Nd9Fe85-xB6Inx. magnets were synthesized by melt-spinning method. The effect between indium-dope and treating process on their magnetic properties were investigated by using XRD and VSM. The results show that both the coercivity and remanence ratio can be enhanced by a small indium-dope in Nd9Fe85B6 nanocomposite, while squareness of its hysteresis loop is also improved greatly. The optimum energy product increases remarkably from 95 kj/m(3) to 145 kj/m(3), while coercivity rises from 405 kA/m to 465 kAlm at 0similar to0.5 mol% indium-dope.

关 键 词：ND-FE-B 纳米复相结构 矫顽力 

分 类 号：TB383[一般工业技术—材料科学与工程]