透射鏡片材料 — Magnesium Oxide (MgO) 氧化鎂
Transmission Range | 0,3 – 7,5μm (thickness 0,49/5,5mm) |
Refractive Index | 1,73461 @633 nm |
Reflection Loss | 6,6% @3 μm |
Density | 3.585 g/cm3 |
Melting point | 2832°C |
Molecular Weight | 40.311 |
Thermal Conductivity | 59 W/(m·K) @300K |
Spec. Heat Capacity | 923.5 J/(kg·K) |
Thermal Expansion | 11 · 10-6?/°C @300 K |
Hardness (Mohs) | 692 (Indenter Load 600g) |
Young’s Modulus | 248.73 GPa |
Shear Modulus | 154.56 GPa |
Bulk Modulus | 155 |
Fracture Modulus | 130 MPa |
Elastic Coefficient | C11?= 294; C12?= 93; C44?= 155 GPa |
Dielectric Constant | 9.65 @f = 100 Hz…100 MHz, 298K |
Solubility in Water | 0.00062 g/100g |
Crystal Structure | Single crystal, synthetic |
Crystal Type | cubic, NaCl type structure, a0 = 4.212 ? |
Cleavage Planes | (100) |
Poisson Ratio | 0.18 |
Application | Substrates for superconductive and for pyroelectric thin films, super high temperature crucibles, window material for super high temperature furnaces, optical material |