透射镜片材料 — Zirconia (ZrO2) 二氧化锆

透射镜片材料 — Zirconia (ZrO2) 二氧化锆

Transmission Range %50
Transmission Range0.38 – 7 µm (thickness 1mm)
Refractive Indexn = 2.15026 @0.643 µm; 2.07203 @3.3 µm
Reflection Loss24% @3.3 µm
Density5.9 g/cm3
Melting point2800°C
Molecular Weight123.204
Thermal Conductivity10.5 W/(m·K) @260 K
Spec. Heat Capacity418 J/(kg·K) @0°C
Thermal Expansion10.65 · 10-6 /°C
Hardness (Mohs)1160 (8.2)
Elastic CoefficientC11 = 394; C12 = 91; C44 = 56 GPa
Dielectric Constant7-8
Solubility in Waterunsoluble
Crystal StructureSingle crystal, synthetic
Crystal Typecubic, CaF2 type structure, a = 5.14 Å
Poisson Ratio0.31
Applicationavailable with stabilization of Y203; max. temperature for application: 2500°C; reacts in combination with HF and sulphuric acid

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