Polycrystalline CVD Diamond

CVD diamond is a non-oxide engineering ceramic material.

Material Properties

Density3.5 g/cm3 (220 lb/ft3)

Dielectric Constant (Relative Permittivity) At 1 MHz5.7

Elastic (Young's, Tensile) Modulus1050 GPa (150 x 106 psi)

Electrical Dissipation At 1 MHz0.00020

Electrical Resistivity Order of Magnitude13 10x Ω-m

Fracture Toughness5.5 MPa-m1/2

Light Transmission Range0.22 to 100 µm

Poisson's Ratio0.1

Refractive Index2.4

Specific Heat Capacity500 J/kg-K

Strength to Weight Ratio210 kN-m/kg

Tensile Strength: Ultimate (UTS)750 MPa (110 x 103 psi)

Thermal Conductivity1900 W/m-K

Thermal Diffusivity1090 m2/s

Thermal Expansion1.0 µm/m-K

The length of each bar compares the given value to the highest value in the database.

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