Cold working consequence on the magnetocaloric effect of Ni50Mn34In16 Heusler alloy

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Cold working consequence on the magnetocaloric effect of Ni₅₀Mn₃₄In₁₆ Heusler alloy

Journal Article (2018)

Author(s)

F. Cugini (Istituto dei materiali per l'elettronica ed il magnetismo, Consiglio Nazionale delle Ricerche, University of Parma)

Lara Righi (Istituto dei materiali per l'elettronica ed il magnetismo, Consiglio Nazionale delle Ricerche, University of Parma)

Lambert van Eijck (TU Delft - RST/Neutron and Positron Methods in Materials)

E. Brueck (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Massimo Solzi (University of Parma, Istituto dei materiali per l'elettronica ed il magnetismo, Consiglio Nazionale delle Ricerche)

Research Group

RST/Neutron and Positron Methods in Materials

DOI related publication

https://doi.org/10.1016/j.jallcom.2018.03.293

Magnetocaloric effect Heusler alloys Cold working Magnetic materials

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Publication Year

2018

Language

English

Research Group

RST/Neutron and Positron Methods in Materials

Volume number

749

Pages (from-to)

211-216

Abstract

The negative effect of cold working on the magnetocaloric effect across the Curie transition of Mn-based Heusler alloys is highlighted. The results of manual crushing and subsequent heat treatment on the magnetic and magnetocaloric properties of a Ni₅₀Mn₃₄In₁₆ sample are reported. Plausible explanations of the degradation of the magnetocaloric effect by cold working are discussed, on the basis of magnetic and structural measurements performed on a reference sample. The study of the connection between microstructure and magnetic properties of these materials represents a key point for the improvement of Heusler-based magnetic refrigeration.

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