Glass Type: Sapphire
Description
Synthetic Sapphire is an aluminum oxide material grown in a hexagonal crystalline form. It’s a very hard material with a high resistance to heat. Because of its crystalline structure, material characteristics can change depending upon the requested orientation. CGQPI can CNC mill, drill, cut, lap, and polish Sapphire in many sizes, shapes, and surface finishes.
| Thermal Properties | Mechanical Properties | ||||||
|---|---|---|---|---|---|---|---|
| Thermal Coefficient of Expansion | (0/300°C): 45-53 X 10 -7/°C | Density | 3.97 g/cm3 | ||||
| Annealing Point | N/A | Knoop Hardness | 1525-2000 Kg/mm2 | ||||
| Softening Point | 2040°C / 3700 °F | Young's Modulus | 50-55X106 psi / 345 GPa | ||||
| Strain Point | N/A | Poisson's Ratio | .28-.33 | ||||
| Chemical Properties | Electrical Properties | ||||||
|---|---|---|---|---|---|---|---|
| Hydrolytic Resistance | N/A | Dielectric Constant | Avg. 9.3-11.5 | ||||
| Acid Resistance | N/A | Resistivity | N/A | ||||
| Alkali Resistance | N/A | Dielectric Strength | 4.8X105 v/cm | ||||
| Optical Properties | |||
|---|---|---|---|
| Refractive Index | 1.768 | ||
