对于磁制冷GdDyFe铸锭复合材料和快淬得到的纳米晶薄带的结构和磁热效应进行了研究和分析.结果表明,GdDyFe铸锭样品和纳米晶薄带样品的居里温度比GdDy合金高,分别由原来的260 K升高到了275 K和263 K,并保留了较大的磁熵变.而且几种相变温度各不相同的铁磁物质复合的GdDyFe材料及其薄带样品的纳米晶结构使得样品的高磁熵变温区范围宽化.该材料适用于埃里克森循环,为磁制冷材料的实用化带来了希望.
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