Preparation of Giant Mangetostrictive Sintered Compacts by Powder Metallurgy

作     者：Xu Jianlin Li Hongwei Yang Hongchuan Zhang Shirong Li Kuoshe Yu Dunbo 

作者机构：Grirem Advanced Materials Co. Ltd. General Research Institute for Non-Ferrous Metals Beijing 100088China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2006年第24卷第3期

页      面：313-313页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：sintered magnetostrictive materials TbDyFe alignment rare earths 

摘      要：Powder metallurgy technique was applied to prepare rare earth giant magnetostrictive materials. This preparation process consists of casted Tb0.30Dy0.70 Fe1.80 alloy, in magnetic atmosphere. which is pulverized by ball mill, aligned field, compacted and sintered in inertial The experimental results indicate that when the magnetic field is 240 kA ·m^-1, the sample with particle size less than 0. 147 mm being compacted in magnetic field exhibits 1613 × 10^-3 magnetostriction under a compressive pre-stress 8.0 MPa after being sintered at 1200 ℃ for 2 h and annealed at 950 ℃ for 24 h.