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The mechanical properties of quartz glass
Density:
2.2g/cm3
Compressive strength:
1100Mpa
Bending strength:
67Mpa
Tensile strength:
48Mpa
Mohs hardness:
5.5-6.5
Thermal properties of quartz glass
Deformation point:
1120℃
Softening point:
1680℃
Thermal expansion coefficient:
5.5x10-7cm/cm.℃
Short term usage temperature:
1300℃
Long term use temperature:
1100℃
Electrical properties of quartz glass
Resistivity:
7x107Ω.cm
Insulation strength:
250-400Kv/cm
Dielectric constant Ɛ:
3.7-3.9
Dielectric absorption coefficient:
<4x104
Dielectric loss coefficient:
<1x104
