Coefficient of Thermal Expansion (CTE)

The Coefficient of Thermal Expansion (CTE) measures the increase in length of a glass specimen as a function of temperature, typically within the temperature ranges 20°C–200°C, 20°C–300°C and 20°C–400°C.

The CTE is strongly influenced by the chemical composition of the glass and, by providing information on the expansion of the glass as a function of temperature, is directly linked to properties such as thermal shock.