| Texto completo | |
| Autor(es): |
Mendonca, Alberto
;
Ghivelder, Luis
;
Bernardo, Pablo
;
Cohen, Lesley
;
Gomes, Angelo
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 2024 IEEE INTERNATIONAL MAGNETIC CONFERENCE-SHORT PAPERS, INTERMAG SHORT PAPERS; v. N/A, p. 2-pg., 2024-01-01. |
| Resumo | |
Heusler alloys are widely studied due to their potential for practical applications, making use of their martensitic transformations. However, hysteresis is a long-standing drawback that reduces the chance of transferring these alloys from the laboratory to industry. In this work, we studied a Cr-doped Ni2MnGa-based material designed by integrating data obtained from the previous phase and hysteresis diagrams taken from the literature, reaching Ni2.15Mn0.70Cr0.15Ga. The compound presents a magnetostructural transition at room temperature, with a ferromagnetic martensite phase, and moderate thermal hysteresis of approximately 4 K. The magnetocaloric effect was explored, showing a reversible entropy change higher than 8 Jkg- 1K(-1) under 0-5 T field change, an advance towards high reversibility for this family alloys. (AU) | |
| Processo FAPESP: | 22/16839-9 - Nanofios multifuncionais baseados em ligas de Heusler para recuperação de energia em dispositivos microscópicos |
| Beneficiário: | Alberto Aguiar Mendonça |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |