Study on preparation technique and properties of magnetostrictive epoxy bonded Tb_(1–x)Pr_x(Fe_(0.4)Co_(0.6))_(1.93) composites

作     者：刘进军 刘新才 蒋成勇 潘晶 

作者机构：State Key Laboratory Base of Novel Functional Materials and Preparation Science Faculty of Materials Science & Chemical Engineering Ningbo University 

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

年 卷 期：2008年第26卷第4期

页      面：563-566页

核心收录：

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

基　　金：the Natural Science Foundation of Zhejiang Province (Y406389) the Foundation of Zhejiang Education Department (20070977) the Natural Science Foundation of Ningbo (2007A610029 and 2005A610022) K.C.Wong Magna Fund in Ningbo University 

主　　题：magnetic material magnetostrictive property composite light rare earths 

摘      要：The magnetic and magnetostrictive properties of epoxy bonded Tb1-xPrx（Fe0.4Co0.6）1.93 （0.85≤x≤1.00） composites, prepared with different epoxy proportions using cold compression-molding technique, were investigated. It is found that the optimal conditions were with a compaction pressure of 100 MPa and a mass ratio of resin to powder of 5：100. The Tb0.1Pr0.9（Fe0.4Co0.6）1.93 composite rod had a high magnetostriction of 770 ppm at an applied magnetic field of 960 kA/m, whereas the Pr（Fe0.4Co0.6）1.93 composite reached 500 ppm at 400 kA/m. The good magnetostrictive properties of Pr（Fe0.4Co0.6）1.93 composite at low-field （≤400 kA/m） could be explained by its low anisotropy. These results indicated that the epoxy bonded Tb1-xPrx（Fe0.4Co0.6）1.93 rod samples for high Pr content of x=0.9-1.0 were of practical value.