KnE Materials Science | IV Sino-Russian ASRTU Symposium on Advanced Materials and Processing Technology (ASRTU) | pages: 5-10

DOI: 10.18502/kms.v1i1.554

Features of Magnetocaloric Effect in Er(Co-Fe)2 Laves Phases

M.S. Anikin
maksim.anikin@urfu.ru
,

E.N. Tarasov
,

N.V. Kudrevatykh
,

M.A. Semkin
,

A.S. Volegov
,

A.A. Inishev
,

A.V. Zinin
,

Abstract

In this work the results of measurements of heat capacity (CP) and magnetocaloric effect (MCE) in Er(Co1-хFeх)2 system in the concentration range 0.07 ≤ x ≤ 0.80 are presented. Phase composition was controlled by X-ray difraction analysis. Heat capacity was measured in the temperature range 77-320 K. MCE has been studied within the temperature range 5-670 K in magnetic fields up to 70 kOe. It was found that Fe concentration increase caused the table-like (plateau) MCE temperature dependence for both magnetic entropy change date and direct ∆T-effect measurements independently on Fe concentration. The possible reasons of such behavior are discussed.

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ISSN: 2519-1438