2026-04-14T04:21:55Zhttps://recercat.cat/oai/requestoai:recercat.cat:10256/188182024-06-18T11:51:04Zcom_2072_452955com_2072_2054col_2072_453063
RECERCAT
author
Wederni, Asma
author
Ipatov, Mihail
author
Pineda, Eloi
author
Escoda i Acero, Ma. Lluïsa
author
González, Julian-Maria
author
Khitouni, Mohamed
author
Suñol Martínez, Joan Josep
2024-06-18T11:51:04Z
2024-06-18T11:51:04Z
2020-12-01
http://hdl.handle.net/10256/18818
Martensitic transition and magnetic response of Ni50−x Pdx,y Mn36 Sn14−y (x = 0, 1, 2 and y = 0, 1) Heusler alloys were analysed. The crystalline structure of each composition was solved by X-ray diffraction pattern fitting. For x = 1 and 2, the L21 austenite structure is formed and, for y = 1, the crystallographic phase is a modulated martensitic structure. From differential scanning calorimetry scans, we determine characteristic transformation temperatures and the entropy/enthalpy changes. The temperatures of the structural transformation increase with the addition of Pd to replace Ni or Sn, whereas the austenitic Curie temperature remains almost unvarying. In addition, the magneto-structural transition, investigated by magnetic measurements, is adjusted by suitable Pd doping in the alloys. The peak value of the magnetic entropy changes reached 4.5 J/(kg K) for Ni50Mn36Sn13Pd1 (external field: 50 kOe)This research was funded by MINECO grant MAT2016-75967-P and UdG grant PONT2020/01
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess
Metalls -- Aliatges
Metals -- Alloys
Transformacions martensítiques
Martensitic transformations
Aliatges amb memòria de forma
Shape memory alloys
Martensitic Transformation, Thermal Analysis and Magnetocaloric Properties of Ni-Mn-Sn-Pd Alloys
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion peer-reviewed