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High Hardness 9 Mohs Sapphire Ingot Excellent Temperature Resistance

Categories Synthetic Sapphire Rod
Brand Name: SILIAN
Model Number: Customized
Certification: SGS/ ISO
Place of Origin: Chongqing,China
MOQ: 50pcs
Price: Negotiable
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 20,000 pcs/month
Delivery Time: 5-8 weeks
Packaging Details: Wooden packing
Melt Point: 2040 C
Density: 3.98g/cm3
Hardness: 9 ( mohs)
Loss Tangent at 10 GHz: < 2x10-5 at A axis , <5 x10-5 at C axis
Crystal Purity: > 99.99%
Specific Heat: 0.10cal / oC
Thermal Expansion: 7.5 x10-6/ oC
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High Hardness 9 Mohs Sapphire Ingot Excellent Temperature Resistance

High temperature resistance, good thermal conductivity, high hardness, sapphire ingot


Product Description


Sapphire (Sapphire, molecular formula Al2O3) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmission and good chemical stability. At the same time, it is also a widely used single crystal substrate material, and it is the substrate of choice for the current blue, violet, and white light emitting diode (LED) and blue laser (LD) industries.


Technical Specification


Crystal StructureHexagonal. a =4.758 c= 12.992
Crystallographic D spacing(1120 ) - a plane: 2.379 (1102) - r plane: 1.740
(1010) - m plane: 1.375 (1123) - n plane: 1.147 ˉ
(0001) - c plane: 2.165 (1011) - s plane: 1.961
Crystal Purity> 99.99%
Melt Point2040 oC
Density3.98 g/cm3
Hardness9 ( mohs)
Thermal Expansion7.5 (x10-6/ oC)
Specific Heat0.10 ( cal / oC)
Thermal Conductivity,46.06 @ 0 oC 25.12 @ 100 oC, 12.56 @ 400 oC ( W/(m.K) )
Dielectric Constant~ 9.4 @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
Standard Products
As - grown boules3" dia x 50 ~ 70 mm length
ori.± 0.5o2" dia x 50 ~ 70 mm length
30 mm dia x 150 mm length
As-cut blanks2" dia x 0.7 mm thickness
ori.± 0.5o1" dia x 0.7 mm thickness
Epi -polished substrates3" dia. x 0.5 mm
C, R, A plane: ori.± 0.5o2" dia. x 0.33 mm, 2"dia x 0.5 mm
1 or 2 sides polished1" dia x 0.5 mm
Ra< 100.5" x 0.5" x 0.5 mm
10x10x0.5 mm

Application field


In the field of optical communication, sapphire crystal is used not only as a short-wavelength active device, but also as a polarizer for passive devices;


In the field of laser, sapphire is an excellent laser dielectric material (such as Ti:Al2O3, Cr:Al2O3);


in the field of superconductivity, sapphire crystal can not only make Y-series, La-series high-temperature superconducting films, but also grow new practical MgB2 High-temperature superconducting thin films (usually single crystal substrates are chemically corroded during the production of MgB2 thin films);


An important window material widely used in high-energy detection and high-power high-power lasers.


Quality High Hardness 9 Mohs Sapphire Ingot Excellent Temperature Resistance for sale
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