hardness 9.0 sapphire bearing for rolling bearing components/prolate ellipse/plano/Round Sapphire optical glass window sector sapphire glass/ sapphire window/sapphire optical plate for vacuum equipment watch window
Synthetic sapphire is transparent single crystal 99.99% pure Al2O3 that exhibits a unique combination of physical, chemical, electrical and optical properties: high thermal conductivity, high strength and scratch resistance, hardness (9 on the Mohs scale), transparent in wide range of wavelength, chemical inertness.
High crystal perfection, low reactivity, and appropriate unit cell size make sapphire an excellent substrate in the semiconductor industry for blue light-emitting diodes (LED).
Since Nobel Laureate in Physics Shuji Nakamura used the sapphire substrate in 1990s for LED, the demand of sapphire crystal has been growing rapidly.
It drives development of new markets like general lighting, backside lighting in TV-sets, displays, consumer appliances, aerospace and defense, and other applications
Sapphire physical property
|Available orientations:||C-axis , R-axis [1-102], A-axis [11-20], M-axis [10-10], Random|
|Sapphire windows / blanks|
|Diameter / Width:||25.0 - 250.0 mm|
|Tolerance:||Standard ± 2°, Special to ± 0.1°|
|Thickness:||Minimum 0.15, maximum 120.0 mm|
|Surface finish:||As cut, fine ground, lapped, polished s/d 80/50, 60/40, 40/20, 20/10, 10/5, according to the MIL-0-13830A|
|Ends / Edge quality:||Fine ground, 80/50|
|"As-grown" sapphire tubes:|
|Dimensions||Up to 50 mm inner diameter, 0,5 - 4,0 mm wall thickness, 300-600 mm tubes length|
|Orientation||C-axis in the length of the tube|
|Polished sapphire tubes:||Up to 50 mm inside diameter, 0,5 - 3,0 mm wall thickness, 80-350 mm tubes length|
|Ingots:||Diameter/Width 5-220 mm, Thickness/Length 25 – 125 mm|
|Surface quality||As-cut, Ends/Edge Quality Diamond cut|
Sapphire body→Slicing→Edge Chamfering→Lapping→Annealing→Polishing→Inspection→Cleaning&Packing
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Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc.
(2) If you have your own express account, it's great.If not,we could help you ship them.
Freight is in accordance with the actual settlement.
Q: How to pay?
A: 100％T/T, Paypal, Secure payment and Assurance payment.
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 2pcs.
(2) For customized products, the MOQ is 25pcs up.
Packing ＆ Delivery
|Packaging||products →customzied plastic box|
|Inner packing → Foam plastics anti-vibration cushion liner for package|
|Outer packing → five layers corrugated carton paper box or as required|
|Shipping||by air → UPS , DHL , Fedex , TNT, EMS ,SF ,etc|
Q:If you have any other questions,please do not hesitate to contact me.
A:Tel+:86-15801942596 or skype:email@example.com