摘要
本文以TiC/Ti/Al为原料,采用热压工艺在1400℃原位合成和烧结含少量第二相Ti3AlC2的Ti2AlC材料。通过不同温度和不同热压时间下合成试样的XRD分析探讨了Ti2AlC的合成过程。结果表明,高温下Ti与Al反应生成中间相TiAl金属间化合物,然后TiC与TiAl金属间化合物反应生成Ti2AlC。不同温度下合成的Ti2AlC颗粒具有不同的形貌特征。
Ti2AlC bulk material with a few amounts of secondary phase Ti3AlC2 was synthesized by in-situ hot pressing TiC/Ti/Al powder mixtures at 1400℃.The synthesis process of Ti2AlC was analyzed based on the XRD patterns of samples prepared at different temperatures and different soaking time by hot pressing. Results show that Ti reacts with Al to form intermediate phase TiAl at high temperature and then TiAl reacts with TiC forming Ti2AlC,Ti2AlC particles synthesized at different temperatures had different microstructure.
出处
《佛山陶瓷》
2005年第3期4-7,共4页
Foshan Ceramics
