Zerodur Material

Zerodur Material Properties

Thermal performance

Coefficient of thermal expansion (CTE): 0 ± 0.007 × 10 ^ -6/° C (0 to 50 ° C)

Specific heat capacity: 0.82 J/g · K at 25 ° C, continuous use temperature up to about 700 ° C

Density: 2.53 grams per cubic centimeter

Elastic modulus: 90 GPa (gigapascals)

Poisson's ratio: 0.24

Refractive index: 1.541 at 587.6 nanometers

Zerodur material has a unique combination of near zero thermal expansion, high mechanical strength, excellent chemical resistance, and optical quality, which makes it perform well in environments where temperature changes can cause significant size changes and affect performance.