A Background to Silicon and its Applications

Material: A Background to Silicon and its Applications
Composition: 100% Si
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0122 0.0198 m3/kmol 744.489 1208.27 in3/kmol
Density 2.28 2.38 Mg/m3 142.336 148.579 lb/ft3
Energy Content 210 260 MJ/kg 22751.1 28168.1 kcal/lb
Bulk Modulus 95 105 GPa 13.7786 15.229 106 psi
Compressive Strength 3200 3460 MPa 464.121 501.831 ksi
Ductility 0.001 0.0015 0.001 0.0015 NULL
Elastic Limit 165 180 MPa 23.9312 26.1068 ksi
Endurance Limit 130 150 MPa 18.8549 21.7556 ksi
Fracture Toughness 0.7 0.9 MPa.m1/2 0.637033 0.819042 ksi.in1/2
Hardness 9000 10200 MPa 1305.34 1479.39 ksi
Loss Coefficient 7e-005 0.0001 7e-005 0.0001 NULL
Modulus of Rupture 180 200 MPa 26.1068 29.0075 ksi
Poisson's Ratio 0.265 0.275 0.265 0.275 NULL
Shear Modulus 60 63 GPa 8.70226 9.13737 106 psi
Tensile Strength 165 180 MPa 23.9312 26.1068 ksi
Young's Modulus 140 180 GPa 20.3053 26.1068 106 psi
Glass Temperature K °F
Latent Heat of Fusion 1343 1485 kJ/kg 577.383 638.432 BTU/lb
Maximum Service Temperature 800 850 K 980.33 1070.33 °F
Melting Point 1700 1723 K 2600.33 2641.73 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 668 715 J/kg.K 0.516937 0.553309 BTU/lb.F
Thermal Conductivity 84 100 W/m.K 157.251 187.203 BTU.ft/h.ft2.F
Thermal Expansion 7 8 10-6/K 12.6 14.4 10-6/°F
Breakdown Potential 5 12 MV/m 127 304.8 V/mil
Dielectric Constant 11 12 11 12 NULL
Resistivity 1e+006 1e+010 10-8 ohm.m 1e+006 1e+010 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 4
Strong Acid 3
Strong Alkalis 2
UV 5
Wear 4
Weak Acid 4
Weak Alkalis 4