China Silicon Carbides/Sic/Silicon Carbides Optical Materials/Sic Mirrors/Sic Lens, Find details about China Silicon Carbide, Sic from Silicon Carbides/Sic/Silicon Carbides Optical Materials/Sic Mirrors/Sic Lens
Items | Value |
Specific heat [J/kg·K] | -200°C: 42 |
20°C: 680 | |
500°C: 1040 | |
1000°C: 1180 | |
Thermal diffusivity [cm-2 · S-1] | 0.58 |
Thermal conductivity [w / (m · K)] | 109.4 |
Items | Value |
Modulus of elasticity [GPA] | 278.57 |
Bending Strength [MPa] | 398.94 |
Posssion's Ration u | 0.172 |
Fracture toughness [MPa · M1/2] | 3.08 |
Coefficient of thermal expansion [k-1] | 2.6*10-6 |
Density [g /cm3] | 2.83 |
Items | Value |
Area density | 43kg/m2 |
Surface shape accuracy | RMS 0.022λ(λ=632nm) |
Clear aperture | 99% |
Surface shape | PV 0.097λ RMS0.008λ |
Surface roughness | Rq 0.301nm |
Applying Fields: | 1).High energy laser mirrors 2).Space-borne mirrors and structures 3).Cryogenic mirrors 4).Fast response scan mirrors 5).High heat flux applications 6).Other optical systems |
***** |