Glass coated ceramic particles.

摘要

Alumina and glass frit are wet mixed, screened, dried and heated to a temperature above the melting point of the glass but below the melting point of alumina. The thus prepared product comprises alumina particles coated with glass. This material is then crushed and rescreened to provide a ceramic powder whose particles have exposed surfaces of glass and alumina. This material, when slip cast in the conventional manner provides a product of substantially greater transverse strength than that known heretofore.