Table 2 Material properties of ⌀4.03 m SiC mirror
From: Challenges and strategies in high-accuracy manufacturing of the world’s largest SiC aspheric 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 |
