Effects of Nd- and Zr- substitution for Sm on magnetic and structural properties in SmFe11V 1:12 compound

被引：0
作者：
Schonhobel, A. M. [1 ,2 ]
Madugundo, R. [2 ]
Echevarria-Bonet, C. [2 ,4 ]
Zamora, L. E. [1 ]
Barandiaran, J. M. [3 ]
Hadjipanayis, G. C. [5 ]
机构：
[1] Univ Valle, Ctr Excelencia Nuevos Mat CENM, Cali 25360, Colombia
[2] BCMat, UPV EHU Sci Pk, Leioa 48940, Spain
[3] Univ Basque Country UPV EHU, Dept Elect & Elect, Leioa 48940, Spain
[4] Univ Oviedo, Dept Phys, Oviedo 33007, Spain
[5] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 946卷
基金：
欧盟地平线“2020”;
关键词：
Hard magnets; ThMn12-type structure; Iron alloys; Rare-earth lean magnets; RARE-EARTH; FE-V; MAGNETOCRYSTALLINE ANISOTROPY; THMN12; STRUCTURE; PHASE-STABILITY; HIGH COERCIVITY; MELT-SPUN; ALLOYS; HYDROGEN; RFE12-XTX;
D O I：
10.1016/j.jallcom.2023.169267
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Structural and magnetic properties of polycrystalline alloys of Sm1-xYxFe11V [Y = Nd (0 <= x <= 0.4), Zr (0 <= x <= 0.6)] were investigated. Substitution of Nd for Sm promoted the formation of alpha-(Fe,V) and 3:29 phases. In the case of Zr-substitution, all the optimally heat-treated alloys crystallize into tetragonal ThMn12-type structure 1:12 phase and bcc alpha-(Fe,V) phase. For high Zr content of x = 0.4 and 0.6, Laves phase ZrFe2 was also detected with Curie temperature of 709 and 697 K, respectively. The substitution of Zr resulted in a contraction of 0.7 % of the 1:12 cell volume. Oriented powder XRD patterns indicated that the easy magnetization direction was along (002) c-axis. As Zr content increased from x = 0-0.6, anisotropy field decreased from 11 to 9 T and Curie temperature from 625 to 583 K. On the other hand, the saturation magnetization increased from 114 to 138 Am2 kg-1. Among the alloys investigated in the present study, the Sm0.61Zr0.40Fe11.03V0.96 with saturation magnetization of 129 Am2 kg-1, anisotropy field of 9.4 T and Curie temperature of 599 K is the most favorable candidate for permanent magnet applications.(c) 2023 Elsevier B.V. All rights reserved.
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页数：9
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