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用粒子排列烧结法制备了（Ｇｄ１－ｘＤｙｘ）３Ａｌ２系功能材料。研究了化学配位数ｘ分别为０和０１的二层（Ｇｄ１－ｘＤｙｘ）３Ａｌ２系合金。结果表明，（Ｇｄ１－ｘＤｙｘ）３Ａｌ２系化合物随着ｘ的增加，其居里温度Ｔｃ逐渐降低，二层梯度材料有与各单层相似的二个Ｔｃ，磁熵变化ΔＳｍ随温度Ｔ的变化平缓，因此，改善了材料的磁致冷性能。
(Gd1-xDyx) 3Al2-based functional materials were prepared by particle sintering. The second-order (Gd1-xDyx) 3Al2 alloys with chemical coordination number x of 0 and 01 were studied. The results show that the Curie temperature Tc of (Gd1-xDyx) 3Al2 compounds decreases with the increase of x, and the two-layer gradient material has two Tc similar to each monolayer. The change of magnetic entropy change ΔSm with temperature T is gentle , Thus improving the material’s magnetic refrigeration performance.