采用Ti,Al和C元素粉末为反应物原料,通过燃烧合成法首次成功地制备出了单相三元碳化合物Ti2AlC1.x.实验结果表明:若以"理想"晶体结构化学式Ti2AlC化学计量比为起始反应原料配比,燃烧产物主晶相为Ti3AlC2;以缺碳的非化学计量比(Ti2AlC1.x)为反应原料配比,即Ti:Al:C=3:1.5:1=2:1:0.7(摩尔比),得到单相的燃烧产物Ti2AlC1.x.从热力学原理的角度探讨了不同原料摩尔配比对燃烧产物相组成的影响机理.
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