Entalpy of Mixing, Microstructure, Structural, Thermomagnetic and Mechanical Properties of Binary Gd-Pb Alloys

Author:

Gębara Piotr1ORCID,Hasiak Mariusz2ORCID,Kovac Jozef3,Rajnak Michal3ORCID

Affiliation:

1. Department of Physics, Częstochowa University of Technology, Armii Krajowej 19, 42-200 Czestochowa, Poland

2. Department of Mechanics, Materials and Biomedical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland

3. Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Kosice, Slovakia

Abstract

The aim of the present work is to study the phase composition, microstructure and magnetocaloric effect of binary Gd100−xPbx (where x = 5, 10, 15 and 20) alloys. The XRD and SEM/EDX analysis confirmed a biphasic structure built by Gd(Pb) and Gd5Pb3 phases. The analysis of M vs. T curves showed the evolution of the Curie point of recognized phases. The temperature dependences of magnetic entropy change revealed two maxima corresponding to the recognized phases. The analysis of the exponent n (ΔSMmax = C(Bmax)n) confirmed the multiphase composition of the produced alloys. The same behavior was also observed in investigations of mechanical properties.

Funder

Polish National Science Centre

Slovak Grant Agency

Slovak Research and Development Agency

Publisher

MDPI AG

Reference35 articles.

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5. Effect of Co content on magnetic entropy change and structure of La(Fe1−xCox)11.4Si1.6;Liu;J. Magn. Magn. Mater.,2003

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