We provide sapphire components with wide transparency characteristics, hardness, chemical stability, heat resistance, and good thermal conductivity.
Sapphire has the following characteristics: - Wide transmission properties (UV to near-infrared (approximately 5μm)) - Hardness (Vickers hardness: 1750 (a-plane)) - Chemically stable (almost insoluble in acids and alkalis, does not lose transparency) - Heat resistant (melting point: 2040°C) - Good thermal conductivity (42W/mK at 25°C) Due to its strength to withstand harsh environments and excellent optical properties, it is one of the materials that can solve the challenges of glass and fluorides. In recent years, it has become possible to grow large crystals of about 300mm, allowing for a wider range of applications. *For more details, please contact us or refer to the catalog.
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basic information
※Sapphire Cultivation method: TSMG method, Bernoulli method, etc. Purity: ≧99.99% Size: Approximately up to 300mm Crystal system: Trigonal system (Corundum structure) Lattice constants: a=0.47588nm, c=1.2992 Melting point: 2040℃ Density: 3.987g/cm³ Hardness: Vickers hardness 1750 (a-plane) Transparency: 235nm to 5μm (varies with thickness, etc.) Thermal conductivity: 42W/mK (at 25℃) Refractive index: no=1.7680, ne=1.7596 (at 590nm)
Price information
Prices may vary depending on size, specifications, accuracy, quantity, and other factors. Please feel free to contact us.
Price range
P2
Delivery Time
※Delivery times may vary depending on size, specifications, accuracy, quantity, and other factors. Please feel free to contact us.
Applications/Examples of results
* Window materials that transmit UV to IR (5μm) * Window materials and containers used in harsh environments (reactive gases, acid and alkaline solutions, dust atmospheres, etc.) * Window materials and containers for high temperature and high pressure environments * Components with severe wear in sliding parts * Base materials for functional epitaxial films * Containers that minimize contamination with impurities, etc.
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Company information
Our company is a manufacturer of oxide single crystals. In particular, we specialize in the following products: 1. Sapphire (α-Al2O3) 2. SrTiO3 3. Rutile (single crystal of TiO2). Although we are a crystal manufacturer, we also perform a full range of processing, including cutting, grinding, and polishing. Having handled crystals for over 70 years since our founding, we possess extensive knowledge and experience, especially regarding sapphire. Recently, we have also been mass-producing sapphire crystals larger than 300mm, allowing us to accommodate large-shaped products and mass production. We are a small company with about 170 employees, but if there is anything we can assist you with, please feel free to contact us.