Stability of commercial grazes on ceramic bodies.

Abstract

Undesirable defects of network of cracks (crazing) are investigated in commercial glazes applied on two ceramic exterior wall tiles, one of which comparatively, had high thermal coefficient of expansion and die other had low thermal coefficient of expansion. The study shows that R203 and R02 components of the glazes and the expansible characteristics of the tiles affect A warpage of the glazed tiles, which phenomenon. subsequently results in failures of crazing after autoclave test.