Abstract
This paper describes the reduction of titanium dioxide with a mixture of silicon carbide and silicon powders at a temperature of 1550°C under vacuum. It has been shown that the use of the combined reductant enables the preparation of the ternary phase Ti3SiC2 through concurrent carboand silicothermic processes. The optimal compositions for Ti3SiC2 formation are TiO2 + (1.5–x)SiC + 2xSi with x = 0.4–0.5. The Ti3SiC2 yield then reaches 96 wt %.
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