Case Study of Ceramic Firing Profile for Terracotta-Based Glaze

Abstract

Terracotta clay is a natural resource that has the potential as a raw material in the ceramic field. This study investigates the effects of color glaze using terracotta clay powder as an alternative substance for ceramic colorants in glaze formulation. Terracotta clay powder is proportionately added to glaze formulations to determine the potential for color added to the glaze at temperatures ranging from 1140 °C to 1200 °C. The content in terracotta clay is bounded with potash feldspar, silica, zinc oxide, and calcium carbonate. Results show the apparent color of the surface on the ceramic glaze samples with different effects.