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.
Original language | English |
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Pages (from-to) | 211-216 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 749 |
DOIs | |
Publication status | Published - 15 Jun 2018 |
Keywords
- Cold working
- Heusler alloys
- Magnetic materials
- Magnetocaloric effect