Abstract Ni50Mn34.7In15.3 alloys based on differently sized particles were prepared by spark plasma sintering. Compared with the arc-melted alloy, the compressive strength and fracture strain of the Ni50Mn34.7In15.3 alloys were tremendously increased via SPS sintering. Simultaneously, their magnetocaloric effects were enhanced by increase the size of particles for SPS sintering. The compressive strength and fracture strain of the sintered alloy were better than 1050 MPa and 12.5%, respectively. A large adiabatic temperature change up to −3.2 K was achieved under a 1.5 T magnetic field. The present work offers an approach to simultaneously improve the mechanical properties and magnetocaloric effects of Ni-Mn-In alloys.

中文翻译：

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在放电等离子烧结Ni-Mn-In合金中同时实现良好的机械性能和大磁热效应

摘要 采用放电等离子烧结法制备了基于不同尺寸颗粒的Ni50Mn34.7In15.3合金。与电弧熔炼合金相比，SPS烧结Ni50Mn34.7In15.3合金的抗压强度和断裂应变显着提高。同时，它们的磁热效应通过增加用于 SPS 烧结的颗粒尺寸而增强。烧结合金的抗压强度和断裂应变分别优于 1050 MPa 和 12.5%。在 1.5 T 磁场下实现了高达 -3.2 K 的大绝热温度变化。目前的工作提供了一种同时改善 Ni-Mn-In 合金机械性能和磁热效应的方法。