Quartz Properties
|
Property |
Typical Value |
| Density | 2.2 x 103 kg/m3 |
| Hardness | 5.5 – 6.5 Mohs’ Scale 570 KHN 100 |
| Design Tensile Strength | 4.8 x 107 Pa (N/m2) (7,000 psi) |
| Design Compressive Strength | Greater than 1.1 x 109 Pa (160,000 psi) |
| Bulk Modulus | 3.7 x 1010 Pa (5.3 x 106 psi) |
| Rigidity Modulus | 3.1 x 1010 Pa (4.5 x 106 psi) |
| Young’s Modulus | 7.2 x 1010 Pa (10.5 x 106 psi) |
| Poisson’s Ratio | 0.17 |
| Coef of Thermal Expansion (20 °C – 320 °C) | 5.5 x 10-7 cm/cm • °C |
| Thermal Conductivity at 20°C | 1.4 W/m • °C |
| Specific Heat at 20 °C | 670 J/kg • °C |
| Softening Point | 1683 °C |
| Annealing Point | 1215 °C |
| Strain Point | 1120 °C |
| Electrical Resistivity at 350 °C | 7 x 107 Ω • cm |
| Dielectric Properties at 20 °C and 1 MHz | |
| Constant | 3.75 |
| Strength | 5 x 107 V/m |
| Loss Factor | Less than 4 x 10-4 |
| Dissipation Factor | Less than 1 x 10-4 |
| Index of Refraction | 1.4585 |
| Constringence (Nu value) | 67.56 |
| Velocity of Sound-Shear Wave | 3.75 x 103 m/s |
| Velocity of Sound/Compression Wave | 5.90 x 103 m/s |
| Sonic Attentuation | Less than 11 db/m MHz |
