Alteration of negative lattice expansion of the La(Fe,Si)13-type phase in LaFe11.14-xCo0.66NixSi1.2 alloys

被引：25

作者：

Gebara, P. ^{[1
]}

Pawlik, P. ^{[1
]}

Hasiak, M. ^{[2
]}

机构：

[1] Czestochowa Tech Univ, Inst Phys, 19 Armii Krajowej Av, Czestochowa, Poland

[2] Wroclaw Univ Sci & Technol, Dept Mech Mat Sci & Engn, 25 Smoluchowskiego Str, PL-50370 Wroclaw, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 422卷

关键词：

Magnetocaloric; X-ray diffraction; Negative lattice expansion; MAGNETIC ENTROPY CHANGE; ELECTRON METAMAGNETIC TRANSITION; ROOM-TEMPERATURE; FE; SI;

D O I：

10.1016/j.jmmm.2016.08.068

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work the temperature dependence of lattice parameters and magnetic properties of the LaFe11.14-xCo0.66NixSi1.2 (where x=0.1,0.2,0.3) alloys were investigated. X-ray diffraction studies of all specimens revealed coexistence of two crystalline phases: the dominant La(Fe, Si)(13)-type phase and minor fraction of bcc alpha-Fe. Furthermore changes in negative lattice expansion with the increase of Ni content in the alloy composition were also shown. The increase of Ni content caused rise of the Curie temperature and decrease of the amplitude of magnetic entropy changes. (C) 2016 Elsevier B.V.All rights reserved.

引用

页码：61 / 65

页数：5

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