Alumina - Aluminium Oxide - Al2O3 - A Refractory Ceramic Oxide

Material: Alumina - Aluminium Oxide - Al2O3 - A Refractory Ceramic Oxide
Composition: blank
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.005 0.0058 m3/kmol 305.119 353.938 in3/kmol
Density 3 3.98 Mg/m3 187.284 248.463 lb/ft3
Energy Content 150 200 MJ/kg 16250.8 21667.7 kcal/lb
Bulk Modulus 137 324 GPa 19.8702 46.9922 106 psi
Compressive Strength 690 5500 MPa 100.076 797.708 ksi
Ductility 0.00018 0.0018 0.00018 0.0018 NULL
Elastic Limit 69 665 MPa 10.0076 96.4501 ksi
Endurance Limit 59 488 MPa 8.55722 70.7784 ksi
Fracture Toughness 3.3 5 MPa.m1/2 3.00315 4.55023 ksi.in1/2
Hardness 5500 22050 MPa 797.708 3198.08 ksi
Loss Coefficient 1e-005 0.0002 1e-005 0.0002 NULL
Modulus of Rupture 152 800 MPa 22.0457 116.03 ksi
Poisson's Ratio 0.21 0.33 0.21 0.33 NULL
Shear Modulus 88 165 GPa 12.7633 23.9312 106 psi
Tensile Strength 69 665 MPa 10.0076 96.4501 ksi
Young's Modulus 215 413 GPa 31.1831 59.9006 106 psi
Glass Temperature K °F
Latent Heat of Fusion 620 1360 kJ/kg 266.551 584.692 BTU/lb
Maximum Service Temperature 1350 2114 K 1970.33 3345.53 °F
Melting Point 2277 2369 K 3638.93 3804.53 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 451 955 J/kg.K 0.34901 0.739035 BTU/lb.F
Thermal Conductivity 12 38.5 W/m.K 22.4644 72.0733 BTU.ft/h.ft2.F
Thermal Expansion 4.5 10.9 10-6/K 8.1 19.62 10-6/°F
Breakdown Potential 8 43 MV/m 203.2 1092.2 V/mil
Dielectric Constant 7.8 11.1 7.8 11.1 NULL
Resistivity 1e+018 1e+024 10-8 ohm.m 1e+018 1e+024 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 5
UV 5
Wear 5
Weak Acid 5
Weak Alkalis 5

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