Description
About Synthetic Sapphire
Sapphire (Sapphire, molecular formula Al2O3) single crystal is an excellent multifunctional material. It is resistant to high temperature, good thermal conductivity, high hardness, infrared transmission, and good chemical stability. It is also a versatile single crystal substrate material and is the substrate of choice for the current blue, violet and white light emitting diode (LED) and blue light laser (LD) industries.
Sapphire material have big advantage in Mechanical, physical, chemical properties than other optical material,is widely applied in industrial,medical, military, scientific research and Consumer etc;
Sapphire Window Typical Applications: Gas & Air Analyzers/Monitors, UV & IR Detectors, Endoscopes, High Intensity Lamps, Bar Code Readers, Photodiodes, View Ports
sapphire rod & Tubes Typical Applications: Pumps, Light Pipes, Spacers, Insulators, Wear Applications Sapphire Orifice Jewels Typical Applications: Ultra-High Pressure Sapphire Waterjet Orfices, Control Units (gas, liquid), Flow-meters, Ink Jet Printing
Precision Balls & Optical Ball Applications: fiber optics, flow meters, rotameters, metrology, bar code readers, check valves (ball and seat), wear surfaces.
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General performance
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chemical composition |
Al2O3
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Crystal Structure |
Hexagonal crystal system
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Melting Point |
2045℃
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Thermal Properties
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Coefficient of Expansion
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Parallel C axis:6.7x10-6
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Specific Heat
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Perpendicular C axis:5.0x10-6
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Mechanical Properties
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Density
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3.98-4.1g/cm
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Hardness
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Moh’s Hardness:9
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Elastic Modulus
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340-380Gpa
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Compressive Strength |
2.1Gpa
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Tensile Strength
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0.19Gpa
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Optical Performance
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Refractive Index
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Parallel optical axis C axis:1.769 |
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Vertical optical axis C axis:1.76 |
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Infrared Transmittance
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In 633nm wavelength>85% |
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Transmission Band
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0.3µm-6µm
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Electrical Properties
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Resistivity
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＞1016（25℃） |
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Dielectric Coefficient
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7.5-10
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Chemical Properties
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Corrosion Resistance
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No acid and alkali corrosion at normal temperatureIt can be corroded by HF at 300 degrees centigrade
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Supply:sapphire ingot,Sapphire wafer substrate,sapphire window,sapphire rod,sapphire lenses,
sapphire ball/half ball,dome sapphire, sapphire watch crystal,sapphire special elements etc;
Shape: Plate,Ball,Dome,Rod,Bar,customized special shape;
Stock Status:Standard Size in stock;
Surface quality:80/50,60/40,20/10,10/5;
Coating:We can make all kinds of coating for you,and we can provide you coating curve if you need.
