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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Temperature and field induced strain in polycrystalline Ni_(50)Mn_(35)In_(15-x)Si_x magnetic shape memory Heusler alloys
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Temperature and field induced strain in polycrystalline Ni_(50)Mn_(35)In_(15-x)Si_x magnetic shape memory Heusler alloys

机译：Ni_（50）Mn_（35）In_（15-x）Si_x磁性形状记忆Heusler合金中的温度和磁场感应应变

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摘要

Magnetic shape memory properties of polycrystalline Ni_(50)Mn_(35)In_(15-x)Si_x were investigated. A reversible strain of more than 0.4% was observed for x = 0 at a magnetic field H = 5 T that was found to be associated with a field induced reverse martensitic transformation. The strains were found to increase with the substitution of In by Si and strains larger than 1 % were observed for x = 2 at H=5 T. Both the positive and negative strain changes were observed in the vicinity of martensitic transition temperatures. The strain in Ni_(50)Mn_(35)In_(15-x)Si_x was found to depend on silicon concentration, and on samples texture.
机译：研究了多晶Ni_（50）Mn_（35）In_（15-x）Si_x的磁形状记忆性能。对于x = 0，在磁场H = 5 T处观察到大于0.4％的可逆应变，发现该磁场与磁场诱导的马氏体逆相变有关。发现随着In被Si取代，应变增加，并且在H ＝ 5T时，对于x ＝ 2，观察到大于1％的应变。在马氏体转变温度附近观察到正应变和负应变变化。发现Ni_（50）Mn_（35）In_（15-x）Si_x中的应变取决于硅浓度和样品质地。

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