发明了一种ZrO₂-Y₂O₃颗粒增强铝合金及其制备方法、复合粉体及其制备方法，属于钼合金技术领域。发明的ZrO₂-Y₂O₃颗粒增强铝合金的制备方法，将ZrO₂、Y₂O₃与MoO₂研磨均匀，然后用氢气还原，再压制成坯体，然后烧结，即得。发明的ZrO₂-Y₂O₃颗粒增强铝合金的制备方法，利用MoO₂的硬度大、性脆和粘度小的特点，将其与ZrO₂和Y₂O₃混合后进行研磨，能够大大减少复合粉体颗粒之间的团聚，得到粒径更小、分散更均匀的复合粉体，从而能够缩短烧结时间，降低能耗，并显著提高合金材料的高温强度和耐磨性能。

The invention discloses a ZrO₂-Y₂O₃ particle reinforced aluminum alloy and a preparation method thereof, a composite powder and a preparation method thereof, belonging to the technical field of molybdenum alloy. The preparation method of ZrO₂-Y₂O₃ particle reinforced aluminum alloy is obtained by grinding ZrO₂, Y₂O₃ and MoO₂ evenly, then reducing with hydrogen, pressing into green body, and then sintering. The preparation method of ZrO₂-Y₂O₃ particle reinforced aluminum alloy can greatly reduce the agglomeration between composite powder particles and obtain composite powder with smaller particle size and more uniform dispersion, so as to shorten the sintering time and reduce energy consumption. The high temperature strength and wear resistance of the alloy material are significantly improved.