Abstract
Al 2 O 3 -TiC ceramic is an important industrial material which is widely used as wear-resistant parts such as cutting tools. Self-propagating high-temperature synthesis (SHS) provides an attractive practical alternative to the conventional methods of producing this kind of materials because SHS offers advantages with respect to process economics and process simplicity. On the other hand, the properties of Al 2 O 3 -TiC ceramic depends on the stoichiometry factor x of TiC x . Out previous work has shown that the properties of Al 2 O 3 -TiC ceramic can be improved by FGMs (Functionally Graded Materials) concept. In the present work, dense Al 2 O 3 -TiC x ceramics with x value in the range of 0∼1 were manufactured by SHS combustion reaction: 3TiO 2 + 3xC + 4Al → 3TiC x + 2Al 2 O 3 . Only cost effective raw materials were used. Thermophysical properties of SHS produced Al 2 O 3 -TiC x ceramics (x=0∼1), such as thermal diffusivity, thennal conductivity and specific heat were investigated as functions of the stoichiometry factor x of TiC x .
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