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Materials 2018, 11(6), 988; https://doi.org/10.3390/ma11060988

Ferromagnetic Shape Memory Heusler Materials: Synthesis, Microstructure Characterization and Magnetostructural Properties

1
School of Mechanical Engineering, University of Adelaide, Adelaide 5005, Australia
2
School of Engineering, Edith Cowan University, Joondalup WA 6027, Australia
*
Authors to whom correspondence should be addressed.
Received: 1 May 2018 / Revised: 26 May 2018 / Accepted: 8 June 2018 / Published: 11 June 2018

Abstract

An overview of the processing, characterization and magnetostructural properties of ferromagnetic NiMnX (X = group IIIA–VA elements) Heusler alloys is presented. This type of alloy is multiferroic—exhibits more than one ferroic property—and is hence multifunctional. Examples of how different synthesis procedures influence the magnetostructural characteristics of these alloys are shown. Significant microstructural factors, such as the crystal structure, atomic ordering, volume of unit cell, grain size and others, which have a bearing on the properties, have been reviewed. An overriding factor is the composition which, through its tuning, affects the martensitic and magnetic transitions, the transformation temperatures, microstructures and, consequently, the magnetostructural effects. View Full-Text
Keywords: Heusler alloys; martensitic transformation; magnetic/metamagnetic shape memory; magnetocaloric; liquid and solid processing; microstructure Heusler alloys; martensitic transformation; magnetic/metamagnetic shape memory; magnetocaloric; liquid and solid processing; microstructure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ahamed Khan, R.A.; Ghomashchi, R.; Xie, Z.; Chen, L. Ferromagnetic Shape Memory Heusler Materials: Synthesis, Microstructure Characterization and Magnetostructural Properties. Materials 2018, 11, 988.

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