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Brand Name : jingjing
Place of Origin : China
MOQ : 10 pcs
Payment Terms : T/T,Western Union,
Supply Ability : 100000 pcs/Month
Delivery Time : 1-4 weeks
Certification : ISO9001
Material : Optical Grade Sapphire
Purity : 99.999%
Orientation : C-axis
Density : 3.98g/cm³
Hardness Mohs : 9.0
Diameter : 0.1-100mm
Diameter tolerance : ±0.05mm
Thickness : 0.1-100mm
Thickness tolerance : ±0.05mm
Surface : Fine grind
Roughness : 1.0μm
Factory manufacture C-axis optical sapphire blank window glass
Sapphire is composed of alumina, and its crystal structure is hexagonal lattice structure.
Synthetic sapphire common application facets are A-Plane,C-Plane, and R-Plane. Due to the wide optical penetration band of sapphire, it has good light transmission from near ultraviolet (190nm) to mid-infrared. Therefore, it is widely used in optical components, infrared devices, high-intensity laser lens materials.
Sapphire also has the characteristics of high sound velocity, high temperature resistance, corrosion resistance, high hardness, high light transmittance, high melting point (2045℃), etc., so it is often used as a material for photoelectric components.
Properties of Single Crystal Sapphire:
Chemical formula | Al₂O₃ |
Purity | 99.999% |
Crystal structure | Hexagonal |
Density | 3.98g/cm³ |
Hardness Mohs | 9 |
Fusion point | 2045℃ |
Boiling point | 2980℃ |
Coefficient of Thermal Expansion | 5.8x10 -6/K |
Specific heat | 0.418W.s/g/k |
Thermal conduction | 25.12W/m/k(@100°C) |
Refractive index | no=1.768 ne=1.760 |
dn/dt | 13×10-6/K(@633nm) |
Transmission | T≈80%(0.3-5μm) |
Permittivity | 11.5(//c), 9.3(⊥c) |
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