Sialons - Properties and Applications of Sialons

Material: Sialons - Properties and Applications of Sialons
Composition: Si3Al3O3N5
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.006 0.0065 m3/kmol 366.142 396.654 in3/kmol
Density 3.2 3.3 Mg/m3 199.77 206.012 lb/ft3
Energy Content 200 250 MJ/kg 21667.7 27084.7 kcal/lb
Bulk Modulus 185 217 GPa 26.832 31.4732 106 psi
Compressive Strength 3500 4500 MPa 507.632 652.67 ksi
Ductility 0.00175 0.00193 0.00175 0.00193 NULL
Elastic Limit 400 700 MPa 58.0151 101.526 ksi
Endurance Limit 428.61 500.05 MPa 62.1646 72.5261 ksi
Fracture Toughness 4 6.2 MPa.m1/2 3.64019 5.64229 ksi.in1/2
Hardness 16500 18900 MPa 2393.12 2741.21 ksi
Loss Coefficient 0.0001 0.0005 0.0001 0.0005 NULL
Modulus of Rupture 450 840 MPa 65.267 121.832 ksi
Poisson's Ratio 0.24 0.29 0.24 0.29 NULL
Shear Modulus 112 120 GPa 16.2442 17.4045 106 psi
Tensile Strength 400 700 MPa 58.0151 101.526 ksi
Young's Modulus 275 300 GPa 39.8854 43.5113 106 psi
Glass Temperature K °F
Latent Heat of Fusion 1040 1170 kJ/kg 447.117 503.007 BTU/lb
Maximum Service Temperature 1273 1800 K 1831.73 2780.33 °F
Melting Point 2745 2810 K 4481.33 4598.33 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 620 710 J/kg.K 0.479792 0.549439 BTU/lb.F
Thermal Conductivity 18 23 W/m.K 33.6966 43.0568 BTU.ft/h.ft2.F
Thermal Expansion 3.3 3.7 10-6/K 5.94 6.66 10-6/°F
Breakdown Potential 5 10 MV/m 127 254 V/mil
Dielectric Constant 8 12 8 12 NULL
Resistivity 1e+018 1e+022 10-8 ohm.m 1e+018 1e+022 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 4
Strong Alkalis 3
UV 5
Wear 5
Weak Acid 5
Weak Alkalis 5