Table 2.

Material properties of ⌀4.03 m SiC mirror

Item	Density	Elastic modulus	Bending strength	Fracture toughness	CTE @10–100 °C	Thermal conductivity
Unit	g/cm3	GPa	MPa∙m1/2	MPa	106/K	W/(m ∙ K)
Value	3.0 ± 0.02	≥350	≥360	≥4.0	2.6 ± 0.2	≥140