Hangzhou Freqcontrol Electronic Technology Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000 pieces/Month |
| Delivery Time | 1-4 weeks |
| Packaging Details | Cassette, Jar, Film package |
| Material | Sapphire Wafer |
| Density | 3.97 g/cm3 |
| Melting Point | 2040 degrees C |
| Thermal Conductivity | 27.21 W/(m x K) at 300 K |
| Thermal Expansion | 5.6 x 10 -6 /K (parallel C-axis) & 5.0 (perpendicular C-axis) x 10 -6 /K |
| Hardness | Knoop 2000 kg/mm 2 with 2000g indenter |
| Specific Heat Capacity | 419 J/(kg x K) |
| Dielectric Constant | 11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz |
| Brand Name | BonTek |
| Model Number | Sapphire (Al2O3) |
| Certification | ISO:9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000 pieces/Month |
| Delivery Time | 1-4 weeks | Packaging Details | Cassette, Jar, Film package |
| Material | Sapphire Wafer | Density | 3.97 g/cm3 |
| Melting Point | 2040 degrees C | Thermal Conductivity | 27.21 W/(m x K) at 300 K |
| Thermal Expansion | 5.6 x 10 -6 /K (parallel C-axis) & 5.0 (perpendicular C-axis) x 10 -6 /K | Hardness | Knoop 2000 kg/mm 2 with 2000g indenter |
| Specific Heat Capacity | 419 J/(kg x K) | Dielectric Constant | 11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz |
| Brand Name | BonTek | Model Number | Sapphire (Al2O3) |
| Certification | ISO:9001 | Place of Origin | China |
| High Light | Wear Resistant Sapphire Windows ，6inch Round Wafer ，Sapphire Windows 4inch | ||
Wear Resistant Sapphire Wafer Sapphire Windows 4inch 6inch Round or Square Shape
Chemically, sapphire is single crystal aluminum oxide (Al2O3), and is useful in a transmission range from 0.2 - 5.5µm. Sapphire, so making them ideal materials for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. And sapphire also is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance.
| Available orientations: | C-axis [0001], 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 |
Acceptance Check
1. The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
2. After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
3. Please open the vacuum package in a clean room when the products are to be applied.
4. If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
1999
Total Annual:
800M-1500M
Employee Number:
10~99
Ecer Certification：
Verified Supplier
Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin... Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin...
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