Material Properties Diamond Polycrystalline admin May 20, 2016January 17, 2017 Material Properties for Diamond Polycrystalline Physical specifications of materials. Materials Diamond Description Polycrystalline Density g/cc 3.5 lb/in^3 0.1265 Hardness Brinell unless specified 62(Vickers) Tensile Strength ultimate Mpa Ksi Yield Strength MPa Ksi Modulus of Elasticity Gpa 850 10^6 Psi 123.1884056 Poisson’s Ratio 0.13 %Elongation at break %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K 1200 Btu/ft-h-F 693.6416184 Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 2.6 1E-6/F 1.4466165402 Electrical Resistivity Ohm-cm