Structure and magnetostriction of high Pr/Ce-content(Tb_(0.2)Pr_(0.8))_(1-x)Ce_(x)Fe_(1.93) Laves compounds

作     者：Yihao Shen Jinjun Liu Qilin Ding Mingkun Wang Zhongbin Pan Juan Du Yihao Shen;Jinjun Liu;Qilin Ding;Mingkun Wang;Zhongbin Pan;Juan Du

作者机构：Faculty of Materials Science and Chemical EngineeringNingbo UniversityNingbo 315211China Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China 

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

年 卷 期：2022年第40卷第4期

页      面：670-675,I0006页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0708[理学-地球物理学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Project supported by the Natural Science Foundation of China(50801039) Zhejiang Province(LY18E010001) Ningbo City(2019A610167) 

主　　题：Light rare earth Intermetallics Laves phase X-ray diffraction Magnetic properties Magnetostriction 

摘      要：The light rare earth Pr/Ce-contained(Tb_(0.2)Pr_(0.8))_(1–x)Ce_(x)Fe_(1.93)(0≤x≤1.0)intermetallics were arc melted and magnetoelastic properties were *** compounds of x≥0.40 are found to stabilize at ambient pressure in a single Laves phase with MgCu2-type C15 structure,which is attributed to the strong Ce 4f *** mixed-valence behavior,with a support of the deviation from the linear Vegard’s law for both lattice parameter a and saturation magnetization M_(S),is observed at room *** easy magnetization direction(EMD)was determined by the analysis of XRD on both magnetically aligned samples and the(440)splitting,that is,EMD lies towardaxis for x≤0.50 rotating tofor x=0.60,accompanied with the structural distortion from rhombohedral to *** substitution of Ce for Tb/Pr is conductive to the reduction of magnetocrystalline anisotropy,giving rise to an improvement of the low-field *** excellent magnetoelastic properties can be tailored by the Ce introduction,e.g.,the spontaneous magnetostriction coefficient λ_(111) as large as 1150×10^(−6) for x=0.40,and the low-field induced magnetostriction achieving a high value of λ_(a)=180×10^(−6) at 80 kA/m for x=*** excellent magnetoelastic properties and the combination in high Pr-content with low cost,suggest promising prospects in applications.