Abstract
Terracotta is valuable for its mineral content, which produces pigments for coloring ceramic bodies and glazes. Unlike commercial colors, terracotta's natural minerals make it unique. This study explores the potential use of local terracotta clay in transparent glaze formulations. Methods like clay powder percentages, X-ray diffraction, X-ray fluorescence tests, electron scanning, and microscope analysis (SEM) are used to examine the clay elements' morphology and structure. The addition of terracotta clay powder in proportions (20-50%) rendered the glaze translucent. Samples were applied on porcelain and fired at gloss temperatures (1200°C). The result colors were glossy, smooth, and creamy, with no defects. Keywords: Terracotta, colorant, glaze, percentage
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