Schott Optical Sapphire Glass
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Schott Optical Sapphire Glass

Schott Sapphire, as one of the hardest, most durable and scratch resistant materials, offers a broad transmission range from UV to mid infrared wavelengths (250 - 5000 nm). The material is able to withstand extreme environmental conditions and temperature changes. SCHOTT offers sapphire materials, Raytek offers the machining process in different supply forms, dimensions, and in customized processing stages.
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  • DLS-LHOP20240711014

  • C-Laser

General Introduction: Schott Sapphire, as one of the hardest, most durable and scratch resistant materials, offers a broad transmission range from UV to mid infrared wavelengths (250 - 5000 nm). The material is able to withstand extreme environmental conditions and temperature changes.  SCHOTT offers sapphire materials, Raytek offers the machining process in different supply forms, dimensions, and in customized processing stages.
Products Name: Schott Sapphire
Alias: Schott Sapphire, Schott Sapphire windows, Schott Sapphire materials, Sapphire optical materials, etc
Main Characteristics:
1).Extreme hardness & high mechanical strength (withstands extreme environmental conditions)
2).Excellent thermal conductivity/heat resistance
3).High transmittance (UV to IR)
4).Low dn/dT
5).High electrical resistance (1014 Ohm x cm)
6).High dielectric constant (9.39 from 1.0 MHz to 8.5 GHz)
Thermal Properties:

ItemsValue
Thermal conductivity (60° to c-axis) at 25 °C27.21 W/ (m x K)
Linear thermal expansion coefficient (60° to c-axis) α(25 °C; 800 °C)8.4 10- 6 / K
Specific heat at 25 °C774.4 J / kg x K
Heat capacity at 25 °C77.87 J / K x mol


Mechanical Properties:

ItemsValueValue
Tensile strength40,000 - 60,000 psi (design criterion)0.27 - 0.41 GPa
Flexural strength70,000 -130,000 psi (design criterion)0.48 - 0.89 GPa
Young's Modulus, E (25 °C)
(Modulus of Elasticity)
50 x 106 psi345 GPa
Compressive Modulus, K55 x 106 psi379 GPa
Flexural Modulus (Modulus of Rupture)52 x 106 psi358 GPa
Shear Modulus, G (Modulus of Rigidity)21.5 x 106 psi148 GPa
Bulk Modulus, k (Volumetric Modulus of Elasticity) Poisson's Ratio35 x 106 psi
0.29
241 GPa


Optical Properties:

ItemsValue
Uniaxial Negativeno = 1.768
ne = 1.760
Birefringence0.008
dn/dt (0.6 µm)13 x 10-6/°C (visible range)
Spectral Emittance0.1 (1600 °C)
Spectral Absorption Coefficient0.1 to 0.2 cm-1 (0.66 micron,  1600 °C)
Electrical Volume Resistivity1016 Ohm x cm (25 °C)
1011 Ohm x cm (500 °C)
106  Ohm x cm (1000 °C)
Dielectric Strength480,000 volts/cm (1,200 volts/mil)
Dielectric Constant11.5 (103 to 109 Hz, 25 °C) parallel to c-axis
9.3 (103 to 109 Hz, 25 °C) perpendicular to c-axis
Loss Tangent8.6 x 10-5 (@1010 Hz, 25 °C) parallel to c-axis
3.0 x 10-5 (@1010 Hz, 25 °C) perpendicular to c-axis
Magnetic Susceptibility- 0.21 x 10-6 parallel to c-axis
- 0.25 x 10-6 perpendicular to c-axis


Main Applying Fields:

Applying Fields:1).Infrared applications (e. g. radiometry, guidance, gas analysis, medicine, safety and security)
2).High-pressure and shock-loading applications(e. g. chamber or heater windows in chemical process equipment)
3).Optical applications (e. g. optical components from UV to IR)
4).Scratchproof sapphire watch glasses
*****


Matching Custom Manufacturing Serivce:
Including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.
Matching processing equipments;
1).Single side lapping and polishing machines
2).Duble sided polishing machines
3).Ring throwing machines
4).DMG five-axis five-linkage spherical milling machine
5).DMG ultrasonic machining center
6).Super large scale gantry cnc machining center (2.0*2.0m)
7).Super large scale surface grinder (1.6m*1.6m)
8).CNC cutting machines
9).Thin plate cleaning machines
10).Ultrasonic trough cleaning machines
11).Plane interferometers
12).Two dimensional detectors
13).Ion beam polishing machines
14).Magnetorheological polishing equipments
Main Cooperation Materials Manufacturers:
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC
Main Export Countries & Areas:

Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.Raytekoptics Extra value added services offered:

1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;
Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.


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