Material Properties Aluminum Oxide- 99.9% Alumina admin May 20, 2016January 17, 2017 Material Properties for Aluminum Oxide- 99.9% Alumina Physical specifications of materials. Materials Aluminum Oxide- Description 99.9% Alumina Density g/cc 3.96 lb/in^3 0.143 Hardness Brinell unless specified 1365(Vickers) Tensile Strength ultimate Mpa 300 Ksi 43.5 Yield Strength MPa Ksi Modulus of Elasticity Gpa 370 10^6 Psi 53.62318832 Poisson’s Ratio 0.22 %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 4.5 Ksi(in)^0.5 4.05 Thermal conductivity W/m-K 30 Btu/ft-h-F 17.34104046 Specific Heat Cpacity J/g-K 0.85 Btu/lb-F 0.204 Coefficient of thermal expansion 1E-6/K 7.4 1E-6/F 4.1172932298 Electrical Resistivity Ohm-cm 100000000000000