Magnetic properties and resistivity of a 2:17-type SmCo magnet doped with ZrO_(2)

作     者：Qi-Qi Yang Zhuang Liu Chao-Yue Zhang Hai-Chen Wu Xiao-Lei Gao Yi-Long Ma Ren-Jie Chen A-Ru Yan 杨棋棋;刘壮;张超越;吴海辰;高晓磊;马毅龙;陈仁杰;闫阿儒

作者机构：Laboratory of Rare-Earth Magnetic Functional MaterialsNingbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo 315201China College of Metallurgy and Materials EngineeringChongqing University of Science and TechnologyChongqing 401331China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第7期

页      面：551-555页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 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] 0704[理学-天文学] 

基　　金：the National Natural Science Foundation of China(Grant No.51877094) Ningbo Science and Technology Project(Grant No.2014B11009) 

主　　题：2:17-type SmCo magnets resistivity coercivity cellular structure 

摘      要：In order to counteract the demagnetization caused by eddy current loss,widespread attention has been devoted to increasing the resistivity of permanent *** prepared 2:17-type Sm Co magnets doped with different ZrO_(2)contents and investigated the influence of the ZrO_(2)content on the magnetic properties and resistive *** results showed that not only was the resistivity of the magnet improved,but,in addition,the coercivity of the magnet was significantly *** microstructure was studied with TEM,which showed that ZrO_(2)doping was able to cause a decrease in the lamellar phase density and the growth of cellular *** increased grain boundaries and Sm_(2)O_(3)phases were favorable to the improvement of *** decrease of the lamellar phases caused a narrowing of the resistive *** additional Cu in the center of the cellular boundaries was the main reason for the enhancement of ***,an excessive amount caused an increase of the Zr_6(Fe Co)_(23)phase and a deterioration of the cellular structure,thereby leading to a decrease in coercivity.