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将压力铸造（Ｓｑｕｅｅｚｅ－Ｃａｓｔｉｎｇ）与燃烧合成（Ｃｏｍｂｕｓｔｉｏｎ－Ｓｙｎｔｈｅｓｉｓ）相结合，利用ＴｉＯ２与Ａｌ之间的反应，成功地制备了金属相Ａｌ含量不同的Ａｌ２Ｏ３－Ａｌ３Ｔｉ－Ａｌ原位复合材料系列。运用三点弯曲方法测试了复合材料的抗弯曲强度和弹性模量。结果表明：复合材料具有较高的弯曲强度（４１０～４９０ＭＰａ）和弹性模量（１５６～２１６ＧＰａ），随着金属相Ａｌ含量的增加，弯曲强度开始有所升高，当Ａｌ体积百分数超过４０％后便明显下降。而弹性模量始终呈降低趋势，复合材料的高强度源于反应生成细小的Ａｌ２Ｏ３颗粒及Ａｌ３Ｔｉ相的增强作用。
Combining Squeeze-Casting and Combustion-Synthesis, a series of Al2O3-Al3Ti-Al in-situ composites with different Al content in the metal phase were successfully prepared by the reaction between TiO2 and Al. The flexural strength and elastic modulus of the composites were tested by three-point bending method. The results show that the composites have higher flexural strength (410 ~ 490MPa) and elastic modulus (156 ~ 216GPa). The flexural strength begins to increase as the Al content increases. When the Al content exceeds 40% After a significant decline. While the modulus of elasticity is always decreasing. The high strength of the composite material is due to the enhancement of Al2O3 particles and Al3Ti phase formed by the reaction.