Silica - Silicon Dioxide (SiO2)

Material: Silica - Silicon Dioxide (SiO2)
Composition: SiO2
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.009 0.0095 m3/kmol 549.213 579.725 in3/kmol
Density 2.17 2.65 Mg/m3 135.469 165.434 lb/ft3
Energy Content 20 25 MJ/kg 2166.77 2708.47 kcal/lb
Bulk Modulus 33.5 36.8 GPa 4.85876 5.33739 106 psi
Compressive Strength 1100 1600 MPa 159.542 232.06 ksi
Ductility 0 0 NULL
Elastic Limit 45 155 MPa 6.5267 22.4809 ksi
Endurance Limit 43 143 MPa 6.23662 20.7404 ksi
Fracture Toughness 0.62 0.67 MPa.m1/2 0.564229 0.609731 ksi.in1/2
Hardness 4500 9500 MPa 652.67 1377.86 ksi
Loss Coefficient 8e-006 2e-005 8e-006 2e-005 NULL
Modulus of Rupture 110 200 MPa 15.9542 29.0075 ksi
Poisson's Ratio 0.15 0.19 0.15 0.19 NULL
Shear Modulus 27.9 32.3 GPa 4.04655 4.68472 106 psi
Tensile Strength 45 155 MPa 6.5267 22.4809 ksi
Young's Modulus 66.3 74.8 GPa 9.616 10.8488 106 psi
Glass Temperature 1230 1830 K 1754.33 2834.33 °F
Latent Heat of Fusion kJ/kg BTU/lb
Maximum Service Temperature 1170 1670 K 1646.33 2546.33 °F
Melting Point K °F
Minimum Service Temperature 0 K -459.67 °F
Specific Heat 680 730 J/kg.K 0.526224 0.564917 BTU/lb.F
Thermal Conductivity 1.3 1.5 W/m.K 2.43364 2.80805 BTU.ft/h.ft2.F
Thermal Expansion 0.55 0.75 10-6/K 0.99 1.35 10-6/°F
Breakdown Potential 25 40 MV/m 635 1016 V/mil
Dielectric Constant 3.6 4.2 3.6 4.2 NULL
Resistivity 1e+023 1e+027 10-8 ohm.m 1e+023 1e+027 10-8 ohm.m
Environmental Properties
  Resistance Factors
1=Poor 5=Excellent
Flammability 5
Fresh Water 5
Organic Solvents 5
Oxidation at 500C 5
Sea Water 5
Strong Acid 5
Strong Alkalis 4
UV 5
Wear 4
Weak Acid 5
Weak Alkalis 5

This data is provided subject to AZoM.com's terms and conditions. Data reproduced with permission of Granta Design Limited www.grantadesign.com and Ceram Research Limited www.ceram.co.uk

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