Ti_3AlC_2/TiC-Al_2O_3 合成被一个燃烧反应 inTiO_2-AI-C 系统综合。在产品上的原料的作文的效果是 investigated.Ti_3AlC_2/TiC-Al_2O_3 合成在 TiO_2 的臼齿的比率被获得: AI : 为 3TiO_2-5AI-2C 系统的 C=3.0:5.0~5.1:1.8~2.0.The 反应路径被建议。AI_3Ti, Ti_2O_3, TiO,和 delta-AI_2O_3are 发现了是过渡阶段。最后,在 ~ 的 Ti_3AlC_2/TiC-Al_2O_3 合成形式 900 deg Cof 炉子温度。从 3TiO_2-5AI-2C 的将近稠密的样品的测量 Vickers 坚硬,破裂坚韧,和曲折力量是 13.3+-1.1 GPa, 5.8+-0.3 MPa 中心点 m~(1/2 ) , and466 ± 3 9 MPa 分别地。
Ti3AlC2/TiC-Al2O3 composite was synthesized by a combustion reaction in TiO2-Al-C system. The effect of the compositions in raw materials on the products was investigated. Ti3AlC2/TiC-Al2O3 composite was obtained at the molar ratio of TiO2:Al:C=3.0:5.0~5.1:1.8~2.0. The reaction path for the 3TiO2-5Al- 2C system was proposed. Al3Ti, Ti203, TiO, and 6-Al2O3 are found to be transitional phases. Finally, Ti3AlC2/TiC-Al2O3 composite forms at~900℃ of furnace temperature. The measured Vickers hardness, fracture toughness, and flexural strength of the nearly dense sample from 3TiO2-5Al-2C are 13.3±1.1 GPa, 5.8±0.3 MPa.m^1/2, and 466±39 MPa, respectively.