利用熔体快淬法制备了La1-xNdxFe11.5Si1.5(x=0,0.3,0.5)快淬带.通过X射线衍射和振动样品磁强计测试了回火态(1000℃,5 h)La1-xNdxFe11.5Si1.5快淬带的相组成和磁性能.结果表明:不同成分快淬带回火后均可得到稳定的NaZn13型化合物.和常规的熔炼法相比,用熔体快淬法通过短时间的回火(1000℃,5 h)可以制成具有大磁熵变的NaZn13型的化合物.用Nd替代部分的La后,居里温度略有提高,同时保持有大的磁熵变|△S|;并且随着Nd含量的增加,有效制冷温区有变宽的趋势.
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