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首页> 外文期刊>Applied Physics Letters >Energy harvesting using martensite variant reorientation mechanism in a NiMnGa magnetic shape memory alloy
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Energy harvesting using martensite variant reorientation mechanism in a NiMnGa magnetic shape memory alloy

机译:NiMnGa磁性形状记忆合金中使用马氏体变体重新定向机制的能量收集

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摘要

Magnetic shape memory alloys demonstrate significant potential for harvesting waste mechanical energy utilizing the Villari effect. In this study, a few milliwatts of power output are achieved taking advantage of martensite variant reorientation mechanism in Ni_(51.1)Mn_(24)Ga_(24.9) single crystals under slowly fluctuating loads (10 Hz) without optimization in the power conversion unit. Effects of applied strain range, bias magnetic field, and loading frequency on the voltage output are revealed. Anticipated power outputs under moderate frequencies are predicted showing that the power outputs higher than 1 W are feasible.
机译:磁性形状记忆合金具有利用Villari效应收集废机械能的巨大潜力。在这项研究中,利用Ni_(51.1)Mn_(24)Ga_(24.9)单晶中的马氏体变体重新定向机制,在缓慢波动的负载(10 Hz)下获得了数毫瓦的功率输出,而没有在功率转换单元中进行优化。揭示了施加的应变范围,偏置磁场和负载频率对电压输出的影响。预测在中等频率下的预期功率输出,表明高于1 W的功率输出是可行的。

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