Abstract
Production of highly porous composite materials by traditional materials processing is limited by difficult processing techniques. However, combustion or selfpropagating high-temperature synthesis (SHS) allows many porous ceramic, intermetallic, glass, and metallic systems to be formed with relative ease. Examination of the SHS reaction parameters that control the extent of porosity further increases the feasibility of producing novel composites for such uses as bone implant applications. Self-propagating high-temperature synthesis of the Ti-TiBx systems has been studied with respect to their sensitivity to the SHS reaction parameters of gasifying agents and microgravity in an effort to engineer the required porosity and mechanical properties in these composite materials. The results of biomedical tests have shown that Ti-TiBx composites is positive bioactive and works for initial bone regrowth. Porous materials produced by SHS can be engineered to meet the strength and porosity requirements of a consumer, such as for the application of bone replacement materials.
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