Magnetocaloric effect and magnetostrictive deformation in Tb-Dy-Gd-Co-Al with Laves phase structure

被引：18

作者：

Politova, G. A. ^{[1
]}

Pankratov, N. Yu. ^{[2
]}

Vanina, P. Yu. ^{[3
]}

Filimonov, A. V. ^{[3
]}

Rudskoy, A. I. ^{[3
]}

Burkhanov, G. S. ^{[1
]}

Ilyushin, A. S. ^{[2
,4
]}

Tereshina, I. S. ^{[2
]}

机构：

[1] RAS, Baikov Inst Met & Mat Sci, Moscow 119334, Russia

[2] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia

[3] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia

[4] RAS, Complex Res Inst, Grozny 364906, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 470卷

关键词：

Rare-earth intermetallic compounds; Laves phase; Magnetostriction; Magnetocaloric effect; TEMPERATURE; TRANSITIONS;

D O I：

10.1016/j.jmmm.2017.11.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of partial substitution of Co by Al atoms on the magnetocaloric and magnetostrictive properties of the multicomponent Tb-Dy-Gd-Co compounds with a Laves phase structure was investigated. The samples were obtained by arc melting using of high-purity rare-earth metals. The crystal structure of Tb0.2Dy0.8-xGdxCo2-yAly (x = 0.3, 0.4, and 0.5; y = 0 and 0.1) compounds was monitored by powder X-ray diffraction. The magnetostriction and the magnetocaloric effect in external magnetic field up to 12 and 18kOe, respectively, were studied in wide temperature range. The Curie temperature of Al-content compounds increases by an average of 20K, while the magnitudes of the magnetocaloric effect and the magnetostriction slightly decrease. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：50 / 54

页数：5

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