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<p>Ferromagnetic shape memory alloys have received much attention for their multicaloric effect, in particular for their magnetocaloric/elastocaloric synergic coupling. Among them, NiMnGaCu alloys represent one of the most promising systems in terms of high magnetocaloric entropy change values. Our previous studies were addressed to assess the effect of microstructure on the elastocaloric effect. In the present work, a critical comparison among experimental data from different methodologies, i.e. DSC, adiabatic calorimetry under magnetic field, magnetization and thermomechanical measurements is made. The different approaches are discussed in terms of experimental and theoretical critical aspects.</p>

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On the evaluation of thermomechanical parameters for caloric investigation of NiMnGaCu polycrystalline alloy

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月18日

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  • Corrado Tomasi,
  • Marco Evangelisti,
  • Elías Palacios,
  • David Gracia,
  • Francesca Villa,
  • Francesca Passaretti,
  • Elena Villa

摘要

Ferromagnetic shape memory alloys have received much attention for their multicaloric effect, in particular for their magnetocaloric/elastocaloric synergic coupling. Among them, NiMnGaCu alloys represent one of the most promising systems in terms of high magnetocaloric entropy change values. Our previous studies were addressed to assess the effect of microstructure on the elastocaloric effect. In the present work, a critical comparison among experimental data from different methodologies, i.e. DSC, adiabatic calorimetry under magnetic field, magnetization and thermomechanical measurements is made. The different approaches are discussed in terms of experimental and theoretical critical aspects.