采用两种方法制备Al2O3/Ti3SiC2层状复合材料,一是原位-热压法,即Ti3SiC2是在层状材料的制备过程中同时被合成的;一是分步法,即制备过程分两步进行,首先制备出Ti3SiC2高纯粉,再采用热压法进行烧结制备层状材料.两种方法制备的Al2O3/Ti3SiC2层状复合材料强度保持在450MPa以上,断裂功达到1200～1560J/m2,相对Al2O3块体材料提高十余倍.另外,不同的制备方法得到不同的组成和显微结构,决定了这两种Al2O3/Ti3SiC2层状复合材料性能的差异:前者强度较高韧性较低,后者强度较低而韧性较高.
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