摘要
La(Fe,Si)13化合物是一种高性能的磁制冷材料,具有制备简单、绿色环保等优点,但同时也兼有力学性能差、热导率低的缺点。本研究采用了一种化学沉积的复合方法,用银包覆镧铁硅合金粉末制备La(Fe,Si)13/Ag化合物。结果表明:La(Fe,Si)13/Ag复合材料的热导率和致密度得到极大改善,并保持了较高的磁制冷性能。
La（Fe,Si）13 is a kind of high-performance magnetic refrigeration materials, which has the advantages of simple preparation and environmental protection, as well as the disadvantages of poor mechanical properties and low thermal conductivity. The La（Fe,Si）13/Ag composite material was prepared by chemical deposit, in which the LaFeSi alloy powder was coated by Ag. Results show that thermal conductivity and density of composite materials are improved greatly. At the same time, the magnetic refrigeration capacity is kept well.
出处
《电工材料》
CAS
2014年第3期3-5,共3页
Electrical Engineering Materials
基金
国家自然科学基金项目(51161005)
