Sapphire (Sapphire Windows)

Overview
Colorless Sapphire (White Sapphire)
Sapphire glass
Key Features
Sapphire with high surface hardness.
Applications
Optical applications.
Infrared applications.
Watchs.
Optical instruments.

Specifications
ITEM NO:Sapphire
Spectral Characteristics
Tave>82% @ 400-700nm
Physical Characteristics
Thickness
0.6, 1.0, 2.0, 3.0mm
Dimension
Square: 33 ~ 4040mm
Round: 3 ~ 50mm
Resistant Temperature
450℃

Specifications
Identification
Crystal system	Trigonal
Chemical formula	Aluminium Oxide, Al₂O₃
Other composition	Na, Si, Ca, Fe, Ga, Mg, Ti, Mn, Pb, Cu, Zn, Ni, Cr.
Specific gravity	3.99-3.98g/cm³
Melting point	2320K³
Softing point	2070K³
Coefficient of thermal expansion	6.2*10^-6/K @ 300K³
Hardness	9 (Mohs Scale of hardness)
Index (@589.3nm)	1.760 ~ 1.789
Electrical resistance	770K: 10¹¹Ω.cm
	1270K: 10⁶Ω.cm
	2270K: 10³Ω.cm

Information and Notes

1. Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (Al₂O₃).Because of the remarkable hardness of sapphires, sapphires are used in some non-ornamental applications, including infrared optical components, such as in scientific instruments; high-durability windows (also used in scientific instruments); wristwatch crystals; and very thin electronic wafers

2. Other shapes, dimensions or thickness available. Glass Process.

3. The transmittance curves are measurements at 0°of incidence angle.

4. The transmittance curves are based on actual measurements and may be different with manufacturing lots.

5. For more transmittance/lower reflection, consider Anti Reflection Coaitng.

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Sapphire (Sapphire Windows)

ITEM NO:Sapphire

Information and Notes