화학공학소재연구정보센터
Journal of the American Ceramic Society, Vol.88, No.8, 2092-2098, 2005
Synthesis and reaction mechanism of Ti3SiC2 by mechanical alloying of elemental Ti, Si, and C powders
Formation of titanium silicon carbide (Ti3SiC2) by mechanical alloying (MA) of Ti, Si, and C powders at room temperature was experimentally investigated. A large amount of granules less than 5 mm in size, consisting of Ti3SiC2, smatler TiC particles, and other silicides, have been obtained after ball milling for only 1.5 h. The effect of excess Si in the starting powders on the formation of Ti3SiC2 was studied. The formation mechanism of Ti3SiC2 was analyzed. It is believed that a mechanically induced self-propagating reaction is ignited during the MA process. A possible reaction mechanism was proposed to explain the formation of the final products.