Magnetization reversal behavior and first-order reversal curve diagrams in high-coercivity Zr-doped α-Fe/Nd_(2)Fe_(14)B nanocomposite alloys

作     者：Tian-Chi Ji Min-Xiang Pan Hong-Liang Ge Qiong Wu Peng-Yue Zhang Tian-Chi Ji;Min-Xiang Pan;Hong-Liang Ge;Qiong Wu;Peng-Yue Zhang

作者机构：Magnetism Key Laboratory of Zhejiang ProvinceChina Jiliang UniversityHangzhou 310018China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2021年第40卷第5期

页      面：1232-1238页

核心收录：

学科分类：0806[工学-冶金工程] 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] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by Zhejiang Provincial Natural Science Foundation of China(No.LGC20E010004) the Science Foundation for Distinguished Young Scholars of Zhejiang Province(No.LR15E010001) the National Natural Science Foundation of China(No.51871205) the Key R&D Program of Zhejiang Province of China(No.2017C01004) the National Key Research and Development Project(No.2019YFF0217205) 

主　　题：Magnetization reversal Coercivity mechanism First-order reversal curve(FORC) Nanocomposite 

摘      要：In the present work,the magnetization reversal behavior for the melt spinning(Nd_(0.8)Ce_(0.2))_(2)Fe_(12)Co_(2-x)Zr_(x)B(x=0,0.5)permanent alloys with high coercivity was investigated by analyzing the hysteresis curves and the recoil *** to the Zr-free alloy,the Zr-doped sample obtains higher magnetic properties:coercivity of H_(cj)=650.5 kA·m^(-1),squareness of H_(k)/H_(cj)=0.76 and maximum energy product of(BH)_(max)=131.0 kJ·m^(-3).The first-order reversal curves(FORCs)analysis was taken to identify optimal conditions of exchange coupling for the Zr-free and Zr-doped *** coercivity mechanism of theα-Fe/Nd_(2)Fe_(14)B nanocomposite alloys was analyzed by the angular dependence of the coercive field as measured for the Zr-doped *** results show that the magnetic reverse process of the Zr-doped sample can be explained by the pinning model.