Analysis of Compaction and Sintering of Compacted Silica Sand and Clay Mixture

This paper presents the effect of clay addition on the compacted and sintered sand. The study aims to develop clay – silica sand composite through powder processing and to study the density, porosity and hardness of the composite. Addition up to 20% weight percentage of clay in silica sand were developed through powder metallurgy method and sintered at 1300º C in 1 hour. Green density and porosity in decreasing trend however an improvement in sintered density was observed. Also the addition of clay up to 20% of weight percentage increases the hardness to 8.906 GPa.