Abstract
In this study a composite ceramic powder mixture using fine powders of titanium diboride (TiB 2) and boron carbide (B 4C) was consolidated to theoretical density using the technique of plasma pressure compaction. Achieving rapid consolidation of the composite powder mixture is an essential requirement for achieving microstructural control and better mechanical properties in the consolidated end product. The variables chosen in making the composite samples was the titanium diboride (TiB 2) content. The microstructure and hardness of the ceramic composite sample made by consolidating various powder mixtures at a temperature of 1700 °C are compared. Microhardness measurements reveal a gradual increase in hardness with an increase in TiB 2 content in the starting powder mixture. The specific role of TiB 2 content in influencing microstructural development and hardness is presented and discussed.
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