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Characteristics of The CVD Diamond Coating

QualitativeQuantitativeUnit QualitativeQuantitativeUnit
Hardness10,000kg/mm2Optical transmittance
(Wavelengths from nanometer to far infrared)
225/
Tensile strength>1.2GpaLoss factor at 40Hz0.0006/
Bending strength>110GpaDielectric constant5.7/
Rate of sound conduction18,000m/sInsulation constant10,000,000V/cm
density3.52g/cm3Electron mobility2,200cm2/v-s
Young’s modulus1.22GpaHole mobility1,600cm2/v-s
Poisson’s ratio0.20/Electron permeability27,000,000cm/s
Coefficient of thermal expansion0.0000011/KHole permeability10,000,000cm/s
Thermal conductivity20W/cm-KWork functionMinor negative valueOn the crystal face [111]
Thermal shock coefficient30,000,000W/mBand gap5eV
Debye temperature2,200Kelectrical resistivity1013-10160hm-cm
Optical index (591nm)2.41/   

 

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