A PROCESS FOR MAKING YTTRIA-ALUMINA-SILICON CARBIDE COMPOSITE USEFUL AS ENGINEERING CERAMICS

摘要

A process has been developed for marking yttria-alumina-silicon carbide composite using gel derived oxide additive. The process involves the steps of mixing the silicon carbide suspension, yttrium nitrate and aluminium nitrate solutions at a ratio ranging 1:3:4 to 1:5:6, stirring at a particular pH to get a gel, allowing the gel for aging, followed by drying, heat treating, grinding and sieving the gel mass to get the composite.