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Sapphire (Al2O3)

Sapphire (Al2O3)

Country/Region china

Company Advanced Engineering Materials Limited

Categories High Temperature Air Source Heat Pump

Update 2019-07-13 16:35:08

ICP License Issued by the Chinese Ministry

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Introduction:

Sapphire (Al2O3) single crystal is an excellent multifunctional materials. It is resistant to high temperature, and has good heat conduction, high hardness, transparent to infrared, stable chemically character. It is widely used in many fields of industry, defense and scientific research (such as high temperature infrared window), and also a widely used single crystal substrate material, which is the preferred substrate for the current blue, violet, white light emitting diode (LED) and blue laser (LD) industries (first need to extend the gallium nitride film on the sapphire substrate). It is also an important superconducting thin film substrate. In addition to making high-temperature superconducting films such as Y-series and La-series, it can also be used to grow new practical MgB2 (magnesium diboride) superconducting films.

Physical Properties

MaterialAl2O3
Crystal StructureHexagonal
Lattice (A)a=4.758, c=12.992
Crystal Purity>99.99%
Density(g/cm3)3.98 g/cm3
Melting point2040℃
Hardness9.0 (Mohns)
Thermal expansion7.5 (x 10-6/℃)
Thermal Conductivity46.06 @ 0 oC25.12 @ 100 oC,12.56 @ 400 oC( W/(m.K) )
Dielectric constants9.4 @300K at A axis~ 11.58@ 300K at C axis
Loss Tangent at 10 GHz< 2x10-5 at A axis ,<5 x10-5 at C axis

Specification

Size10x3, 10x5, 10x10, 15x15, 20x15, 20x20,Dia15, Dia 20, Dia 1''
Thickness0.5 mm, 1.0 mm
PolishedSSP or DSP
Crystallographic D spacing(1120 ) - a plane2.379(1102) - r plane1.740
(1010) - m plane1.375(1123) - n plane: 1.147
(0001) - c plane2.165(1011) - s plane1.961
Redirection precision0.5°
Redirection the edge2°(special in 1°)
Angle of crystallineSpecial size and orientation are avaiable for request
Ra:5(5m×5m)

Package

100 clean bag, 1000 exactly clean room

Product Tags:

led displays

      

light emitting diode

      
China Sapphire (Al2O3)

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