廉价TiH2是制造钛粉的中间产物.本文用TiH2取代钛粉在常压下高温合成一种先进陶瓷材料-钛铝碳(Ti2AlC和Ti3AlC2).以配料3TiH2/1.5Al/C或2TiH2/1.5 Al/TiC为原料,在1400℃保温120 min可合成高纯Ti2AlC.原料3TiH2/1.2Al/2C在1400 ℃保温120 min和TiH2/1.2Al/2TiC在1350℃保温120 min均可制备高纯的Ti3AlC2.差示扫描量热法(Differential Scanning Calorimetry)被用来分析Ti-Al-C反应体系热量变化.在配料3TiH2/1.5Al/C反应过程中,Ti2AlC合成反应的放热峰消失；表明TiH2脱氢反应所吸收的热量与TiC或Ti2AlC的合成反应所释放的热量相互弥补.以TiH2为Ti源在一定程度上不仅可以降低原料成本,还可以减少或避免大批量生产钛铝碳过程中的热爆现象.
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