Fe-Ni-Mn纳米粒子的磁热行为

Magnetics Symposium 2014 - Celebrating 50th Anniversary of IEEE Magnetics Society (MSSC50) Pub Date : 2014-11-06 DOI:10.1109/MSSC.2014.6947685

V. Chaudhary, A. Chaturvedi, R. Ramanujan

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引用次数: 1

摘要

研究了高能球磨(Fe70Ni30)95Mn5合金纳米颗粒的磁热效应。Fe和Ni被Mn部分取代后，合金的居里温度降至接近室温(338 K)，相对冷却功率(RCP)在0.5 T和5 T的磁场变化下分别从26 J-kg-1增加到470 J-kg-1，这一数值与基准磁热材料钆相当。

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Magnetocaloric behavior of Fe-Ni-Mn nanoparticies

We have studied the magnetocaloric effect in high energy ball milled (Fe₇₀Ni₃₀)₉₅Mn₅ alloy nanoparticles. The partial substitution of Fe and Ni by Mn decreases the Curie temperature of the alloy to near room temperature (338 K). Relative cooling power (RCP) increases from 26 to 470 J-kg^-1 for a field change of 0.5 and 5 T, respectively, these values are comparable to the benchmark magnetocaloric material, gadolinium.

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Magnetics Symposium 2014 - Celebrating 50th Anniversary of IEEE Magnetics Society (MSSC50)

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