实验表明在Ti-Al-C体系中,C含量对燃烧合成Ti3AlC2影响很大:C含量(原子分数)较低时(22.64%-28.07%),燃烧产物主要物相为Ti2AlC;C含量较高时(29.31%-32.79%),燃烧产物主要物相为Ti3AlC2.Ti3AlC2的燃烧合成反应温度高于Ti2AlC的燃烧温度,Ti3AlC2的生成量随燃烧反应温度升高近似呈对称分布.从反应物原料摩尔配比和热力学原理角度,探讨了不同C含量对燃烧产物组成的影响机理.
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