论文标题
Ni2（Mn，Cu）GA0.84AL0.16 Heusler Alloys中的磁化效应
Magnetocaloric effect in Ni2(Mn,Cu)Ga0.84Al0.16 Heusler alloys
论文作者
论文摘要
多晶Heusler化合物NI2MN0.75CU0.25GA0.84AL0.16在铁电磁阶段和Ni2Mn0.30.30Ga0.84Al0.16之间具有马氏菌过渡，并通过磁场和热量进行了磁场，并通过磁场来研究了磁化转换的磁化量，并通过磁场进行了调查。 Compound Ni2Mn0.75Cu0.25Ga0.84Al0.16探索了磁对齐的结构及其原因之间的磁断效应很大。此外，NI2MN0.70.30GA0.84AL0.16显示出非常高，尽管在磁场变化下在室温下在室温下不可逆，熵和绝热温度变化0-1 t。与基于NI2MNGA的基于NI2MNGA相比，改进的固化剂容量也是30％CU材料的亮点。
Polycrystalline Heusler compounds Ni2Mn0.75Cu0.25Ga0.84Al0.16 with a martensitic transition between ferromagnetic phases and Ni2Mn0.70Cu0.30Ga0.84Al0.16 with a magnetostructural transformation were investigated by magnetization and thermal measurements, both as a function of temperature and magnetic field. The compound Ni2Mn0.75Cu0.25Ga0.84Al0.16 presents a large magnetocaloric effect among magnetically aligned structures and its causes are explored. In addition, Ni2Mn0.70Cu0.30Ga0.84Al0.16 shows very high, although irreversible, entropy and adiabatic temperature change at room temperature under a magnetic field change 0-1 T. Improved refrigerant capacity is also a highlight of the 30% Cu material when compared to similar Ni2MnGa-based alloys.
