Sapphire is composed of alumina (Al2O3), which is formed by the covalent bonding of three oxygen atoms and two aluminum atoms. Its crystal structure is a hexagonal lattice structure. Sapphire crystal has excellent optical properties, mechanical properties, and chemical stability, high strength, high hardness, and erosion resistance. It can work at a high temperature close to 2000 ℃, Therefore, it is widely used in infrared military devices, high-intensity laser lens materials, and mask materials; With its unique lattice structure, excellent mechanical properties, and good thermal properties, sapphire crystal is often used as the material of photoelectric components. Generally, GaN-based materials and epitaxial layers of devices are mainly grown on a sapphire substrate.
Sapphire substrate has many advantages: firstly, the production technology of sapphire substrate is mature and the device quality is good; Secondly, sapphire has good stability and can be used in the process of high-temperature growth; Finally, sapphire has high mechanical strength and is easy to handle and clean. Therefore, most processes generally use sapphire as the substrate.
WDQ OPTICS is a company specializing in the processing and customization of sapphire single crystal (Al2O3), quartz, tungsten carbide and other extra hard and brittle material products and related sapphire components; It has an excellent technical team and advanced equipment for sapphire professional processing, master the core technology and perfect production and manufacturing process of sapphire and optical devices, and can provide customers with a large number of stable customized sapphire and other optical devices for a long time.
Our company's sapphire products mainly include:
Sapphire ball cover, sapphire special-shaped ball cover, sapphire super hemispherical cover;
Sapphire optical window sheet and substrate, sapphire square sheet and rectangular sheet;
Sapphire lens, sapphire prism, Sapphire/ruby ball, sapphire rod, sapphire laser rod;
Through-hole gem components, gem micropore sensors, gem measurement, nozzles and inserts, bearings, valve seat components and special-shaped components;
Sapphire Products are widely used in:
Coordinate measurement, blood cell analyzer, liquid chromatograph, photon rejuvenation instrument, optical lens, aviation instrument, laser rod, laser guidance instrument, gyroscope, high-pressure water cutting and other precision measuring instruments, integrated circuit, liquid cutting, laser technology, optical fiber communication, textile, medicine, aerospace and other high-tech fields
Sapphire Material Properties
Sapphire substrate has many advantages: firstly, the production technology of sapphire substrate is mature and the device quality is good; Secondly, sapphire has good stability and can be used in the process of high-temperature growth; Finally, sapphire has high mechanical strength and is easy to handle and clean. Therefore, most processes generally use sapphire as the substrate.
WDQ OPTICS is a company specializing in the processing and customization of sapphire single crystal (Al2O3), quartz, tungsten carbide and other extra hard and brittle material products and related sapphire components; It has an excellent technical team and advanced equipment for sapphire professional processing, master the core technology and perfect production and manufacturing process of sapphire and optical devices, and can provide customers with a large number of stable customized sapphire and other optical devices for a long time.
Our company's sapphire products mainly include:
Sapphire ball cover, sapphire special-shaped ball cover, sapphire super hemispherical cover;
Sapphire optical window sheet and substrate, sapphire square sheet and rectangular sheet;
Sapphire lens, sapphire prism, Sapphire/ruby ball, sapphire rod, sapphire laser rod;
Through-hole gem components, gem micropore sensors, gem measurement, nozzles and inserts, bearings, valve seat components and special-shaped components;
Sapphire Products are widely used in:
Coordinate measurement, blood cell analyzer, liquid chromatograph, photon rejuvenation instrument, optical lens, aviation instrument, laser rod, laser guidance instrument, gyroscope, high-pressure water cutting and other precision measuring instruments, integrated circuit, liquid cutting, laser technology, optical fiber communication, textile, medicine, aerospace and other high-tech fields
Sapphire Material Properties
| General performance | Chemical Composition | AL2O3 |
| Chemical Composition | Hexagonal | |
| Melting Point | 2045℃ | |
| Thermal Properties | Coefficient Of Expansion | Parallel optical axis C-axix:6.7 × 10-6 |
| Vertical optical axis C-axis:5.0 × 10-6 | ||
| Specific Heat | 0.18Cal/gm°K(25℃) | |
| Mechanical properties | Density | 3.98-4.1g/cm3 |
| Hardness | Mohs hardness: 9 | |
| Micro 1700kg / mm2 | ||
| Elastic Modulus | 340-380Gpa | |
| Compressive Strength | 2.1Gpa | |
| Tensile Strength | 0.19Gpa | |
| optical performance | Refractive Index | Parallel optical axis C-axis:1.769 |
| Vertical optical axis C-axis:1.76 | ||
| Infrared Transmittance | > 85% at 633nm wavelength | |
| Light Transmission Band | 0.3um-6um | |
| Electrical performance | Resistivity | >1016Ω(25℃) |
| Dielectric Constant | 7.5-10 | |
| Chemical properties | Corrosion Resistance | It is free from acid-base corrosion at room temperature.It can be eroded by HF at 300 ℃ |
Sapphire Products
