polycrystalline diamond / CVD
Element Six Diafilm RF polycrystalline CVD (chemical vapour deposition) diamond has been engineered to meet the needs of nuclear fusion, which is the next generation of clean, renewable energy.
Much attention has recently been focused on improving the dielectric properties of CVD diamond in the mm wave band. Measurement of these properties is typically made at 145 GHz on samples of material at least 30 mm (1.18”) in diameter and in excess of 0.85 mm (0.034”) thick, depending on frequency. Samples having a dielectric loss tangent (tan d) in the range of 100-100x10-6 can routinely be achieved in diameters up to Ø135mm and 3.0mm thick.