Quartz glass characteristics
Table 1.
Mechanical Property | Reference Value |
Density | 2.2g/cm3 |
Compressive Strength | 1100Mpa |
Bending Strength | 67Mpa |
Tensile Strength | 48Mpa |
Poisson's Ratio | 0.14~0.17 |
Elastic Modulus | 72000Mpa |
Shearing Modulus | 31000Mpa |
Mohs Hardness | 5.5~6.5 |
Table 2.
Mechanical Property | Reference Value |
Deformation Point | 1280°C |
Softening Point | 1780°C |
Annealing Point | 1250°C |
Specific Heat(20~350°C) | 670J/kg.°C |
Thermal Conductivity(20°C) | 1.4W/m.°C |
Refractive Index | 1.4585 |
Coefficient of thermal expansion | 5.5×10-7cm/cm.°C |
Hot work temperature | 1750~2050°C |
The temperature for a short time | 1300°C |
The temperature for a long time | 1100°C |
Table 3.
Electrics Property | Reference Value |
Resistivity | 7×107Ω.cm |
Dielectric Strength | 250~400Kv/cm |
Dielectric Constant | 3.7~3.9 |
Dielectric absorption coefficient | <4×104 |
Dielectric loss coefficient | <1×104 |
A-Grade UV Grade Quartz Substrates feature 10-5 Scratch and Dig (Double Side Typ.), < Lambda/10 @ 632.8nm over 1-Inch Area.
A-Grade quartz substrates, plates, slides, wafers and windows are widely used for imaging / coating purpose.
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