Ceramic Tile Thermal Expansion

The center line is the engobe.

Ceramic tile thermal expansion.

The lower line is the glaze. Special thanks to reader eric p e. Fine ceramics also known as advanced ceramics have low coefficients of thermal expansion less than half those of stainless steels. The coefficient of linear thermal expansion clte of any material is the change of a material s dimension per unit change in temperature.

Almost any fired ceramic object experiences expansion as it is heated and contraction as it is cooled. The coefficient ratio of thermal expansion indicates how much a material expands per 1 2 2 rise in temperature. These are thermal expansion curves for body engobe and glaze from a dilatometer a device that measures it against increasing temperature. There is a rich mans and poor mans way to fit glazes the latter might be better.

The coefficient of thermal expansion or clte coefficient of linear thermal expansion. Understanding thermal expansion is the key to dealing with crazing or shivering. Understanding thermal expansion in ceramic glazes description. The linear expansion of a heated solid or liquid is measured by.

With a sintering temperature of 950 c the miba based glass ceramic tiles demonstrated high mechanical performance capable of satisfying ceramic wall tile requirements i e bending strength 12 mpa and thermal expansion coefficient 9 10 6 c schneider 1991.