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以Ｔｉ，Ａｌ和Ｃ粉末为原料，采用接触反应法制备原位ＴｉＣ颗粒增强的铸造ＡｌＣｕ复合材料，研究了反应温度对反应产物的影响，探讨了ＴｉＣ颗粒的形成机制。结果表明，随着反应温度的升高，副产物ＴｉＡｌ３和Ａｌ４Ｃ３生成的可能性减小；当反应温度为９００℃时，反应副产物全部转变为ＴｉＣ，且原位反应生成０．５～１．５μｍ的ＴｉＣ颗粒均布于αＡｌ基体中；ＴｉＣ的加入能显著提高基体的强度，特别是高温强度，但使其延伸率有所下降。
Ti, Al and C powders were used as raw materials to prepare in-situ TiC particles reinforced AlCu composites by contact reaction method. The effects of reaction temperature on the reaction products were studied and the formation mechanism of TiC particles was discussed. The results showed that the possibility of formation of by-products TiAl3 and Al4C3 decreases with the increase of the reaction temperature. When the reaction temperature is 900 ℃, the reaction by-products all turn into TiC, and the in-situ reaction yields 0.5-1. 5μm of TiC particles are distributed in the α Al matrix; TiC addition can significantly improve the strength of the matrix, especially the high temperature strength, but the elongation decreased.