本文研究了Ｍｏ－Ｃｕ混合粉压坯在不同温度下液相烧结合金的部分性能和烧结机理。经ＴＥＭ，ＳＥＭ组织观察以及电子探针成分分析表明，烧结过程中，Ｍｏ在粘结相Ｃｕ中有溶解－析出现象，并发现在Ｍｏ晶粒表面形成一定比例的Ｍｏ－Ｃｕ浓度梯度过渡层。合金晶粒细小，且组织均匀，最佳烧结温度为１３００～１３５０℃。关键词 In this paper, some properties and sintering mechanism of liquid-phase sintered alloys of Mo-Cu mixed powders at different temperatures were studied. The results of TEM, SEM and electron probe analysis show that during the sintering process, Mo dissolves and precipitates in the binder phase Cu, and a certain proportion of Mo-Cu concentration gradient transition layer is formed on the Mo grain surface. Alloy grains are fine, and the organization is uniform, the best sintering temperature is 1300 ~ 1350 ℃. Key words