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Ceradyne Thermo-Sil® UHS Fused Silica

Category Ceramic , Oxide , Silicon Oxide
Manufacturer Ceradyne Advanced Ceramics
Trade Name Thermo-Sil®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Ceradyne Thermo-Sil® UHS Fused Silica.pdf
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Material Notes:
Fused Silica is an excellent thermal insulator with an extremely low coefficient of thermal expansion. It is excellent for thermal shock applications. The key characteristics of this material are:High Thermal Shock Resistance Radio wave, IR & Microwave Transparent Information provided by Ceradyne Company
Physical Properties Metric English Comments
Bulk Density 1.92 - 2.02 g/cc
0.0694 - 0.0730 lb/in³
Water Absorption 8.0 - 12 %
8.0 - 12 %
ASTM C20
Porosity 8.0 - 12 %
8.0 - 12 %
ASTM C20
Crystallinity <= 0.50 %
<= 0.50 %
Mechanical Properties Metric English Comments
Modulus of Elasticity 36.5 - 40.0 GPa
5290 - 5800 ksi
Modulus of Rupture 0.0545 - 0.0579 GPa
7.90 - 8.40 ksi
ASTM C133
Flexural Strength 54.5 - 57.9 MPa
7900 - 8400 psi
Compressive Strength 172.4 - 241.4 MPa
25000 - 35010 psi
ASTM C133
Thermal Properties Metric English Comments
CTE, linear 0.500 µm/m-°C

@Temperature 20.0 °C
0.278 µin/in-°F

@Temperature 68.0 °F
Specific Heat Capacity 0.630 J/g-°C

@Temperature 800 °C
0.151 BTU/lb-°F

@Temperature 1470 °F
1.00 J/g-°C

@Temperature 20.0 °C
0.239 BTU/lb-°F

@Temperature 68.0 °F
Thermal Conductivity 0.750 W/m-K
5.20 BTU-in/hr-ft²-°F
Shrinkage 0.0 %

@Temperature 1100 °C
0.0 %

@Temperature 2010 °F
Optical Properties Metric English Comments
IR Transmittance 90 %
90 %
transparent; thickness not quantified
UV Transmittance 90 %
90 %
transparent; thickness not quantified
Electrical Properties Metric English Comments
Dielectric Constant 3.27 - 3.31
3.27 - 3.31
Dissipation Factor 0.0010
0.0010
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