Thermal Grade Polycrystalline CVD Diamond
Thermal grade polycrystalline diamond, grown via chemical vapor deposition, available in film coatings and bulk form. Polycrystalline diamond offerings are custom processed for advanced applications.
PRODUCT INFO
Specification Properties Thermal Conductivity 1500-2200 W/(m·K) (to customer specification) Hardness >8 MPa·m Lattice Constant 3.567 Å Density 3.51 ± 0.01 g/cm3 Refractive Index 2.418 (at 500 nm) 13C Fraction 1.10% Grain Size >100μm typical Dimensions Square, round up to 75mm (length, width), minimum 300um thick (final dimension availability dependent on specifications) Roughness, Ra Laser Cut, Optical Polish (~20nm Ra), Fine Polish (<10nm Ra) Appearance Yellow Tint to Black Thermal Expansion Coefficient ~1×10⁻⁶ K⁻¹ Specific Heat (25° C) ~0.51–0.54 J/g·K Nitrogen Levels <5ppm N2