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对Ｔｉ－Ａｌ－Ｂ，ＴｉＯ２－Ａｌ－Ｂ和ＴｉＯ２－Ａｌ－Ｂ２Ｏ３三个体系利用反应热压方法制备了原位ＴｉＢ２粒子增强Ａｌ（ＴｉＢ２／Ａｌ）和原位Ａｌ２Ｏ３，ＴｉＢ２粒子增强Ａｌ（Ａｌ２Ｏ３·ＴｉＢ２／Ａｌ）复合材料．Ｔｉ－Ａｌ－Ｂ体系中形成的ＴｉＢ２为最大尺寸可达５μｍ的具有一定长宽比的块状或棒状粒子，此外还有一定量尺寸可达几十微米的不规则块状Ａｌ３Ｔｉ生成．ＴｉＯ２－Ａｌ－Ｂ体系中形成小于２μｍ等轴的Ａｌ２Ｏ３和ＴｉＢ２粒子，基本没有Ａｌ３Ｔｉ生成．ＴｉＯ２－Ａｌ－Ｂ２Ｏ３体系中除细小等轴状的Ａｌ２Ｏ３和ＴｉＢ２粒子外，还生成尺寸为几十微米的条状Ａｌ３Ｔｉ．拉伸试验表明，由ＴｉＯ２－Ａｌ－Ｂ体系制备的复合材料具有最高的强度和塑性．对三个体系所制备复合材料差异的微观结构和性能做出了解释．
In-situ TiB2 particle-reinforced Al (TiB2 / Al) and in situ Al2O3, TiB2 particle-reinforced Al (Al2O3) were prepared by reaction hot pressing on Ti-Al-B, TiO2-Al-B and TiO2- TiB2 / Al) composites. TiB2 formed in the Ti-Al-B system is a massive or rod-like particle with a certain aspect ratio up to 5μm in size, in addition to a certain amount of irregular Al3Ti up to tens of microns in size. Al 2 O 3 and TiB 2 particles were formed in the system of TiO 2 -Al-B with less than 2 μm equiaxed and almost no Al 3 Ti was formed. In addition to the fine equiaxed Al2O3 and TiB2 particles in the TiO2-Al-B2O3 system, strip-shaped Al3Ti having a size of tens of micrometers was also formed. Tensile tests show that the composite prepared by TiO2-Al-B system has the highest strength and plasticity. The microstructures and properties of the composite prepared by the three systems are explained.