Introduction
High purity synthetic quartz glass melted by chemical vapor deposition (CVD) process and silicon tetrachloride (SiCl4) as raw material, quartz glass ingot, quartz glass cylinder/ring and its products with regular shape are produced through secondary, electric melting heat modification and mechanical processing. Widely used in advanced semiconductor processes and precision optics.
Chemical purity
Impurity Typical Value (ppm)
Al
＜0.05
Ca
＜0.02
Cu
＜0.005
Fe
＜0.005
Ti
＜0.01
Mn
＜0.01
K
＜0.01
Na
＜0.02
OH
900-1300
Appearance
Item
Bubble
200nm Transmittance
Appearance Color
Surface Contaminants
Index
No visible bubbles to the naked eye.
≥85%
The outer surface color is uniform , without any impurities , and the interior is colorless and transparent after being coated with red oil.
No toxic or harmful residues.
Physical Property
Mechanical Properties
Density（g/cm3）
Young’s Modulus（GPa）
Poisson’s Ration
Bending Strength（MPa）
Compressive Strength（MPa）
Tensile Strength（MPa）
Torsional Strength（MPa）
Mohs Hardness
2.2
74
0.17
65
1300
49
29
6-7
Electrical Properties
Dielectric Constant （10GHz）
Loss Factor（10GHz）
Resistivity （20℃）（Ω.cm）
3.7
0.0002
1×1016
Thermal Properties
Strain Point(η=1014.5 ℃)
Annealing point(η=1013 ℃)
Softening point(η=107.8 ℃)
Thermal Conductivity(W/m·k)(20℃)
Specific Heat（20℃）(J/kg.k)
Diffusivity(20℃)(x10-7·m2/s)
Expansion Coefficient(x10 -7/k)
α ：25℃~320 ℃
1070
1150
1670
1.24
749
7.5
5.2-5.8
Transmittance Curve
Thickness 10mm
Synthetic Quartz FLH301 Consulting Service ：18272229653
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