Description features:




CVD diamond is the chemical vapor deposition diamond (also named CVD diamond films, diamond thick films). It is another significant revolution in synthetic diamond fields after the synthesis of diamond under high temperature and high pressure. Its size can be great, which is reaching 20 mm diameter and 2 mm thickness in mass production at present. And the crystal quality can be compared with natural IIa diamond. At a low-pressure condition, the gases containing carbon such as CH 4 and C 3 H 8 will pyrolysis. Then with the effect of activation radical as H+ and OH, pure polycrystal diamond will be deposited on solid substrates. The main synthesis methods of CVD diamond films include: Hot-filament CVD, DC Arc Plasma Jet CVD, Microwave plasma CVD, DC hot cathode plasma CVD



** CVD DIAMOND freestanding films



CVD diamond for mechanical grade application



----CDK



----CDY



CDK------standard type



The cvd diamond produced by hot-filament is black and lighttight. It is the pure diamond with polycrystalline structure, without any metal and non-metallic agglomerant and suitable for the high level wear occasion use.



Application field



1) Dressing tool, including:



Multipoint diamond dressing tool



Diamond dressing idler wheel



For dressing:



Palm corundum and carborundum grinding wheel



Diamond grinding wheel



CBN grinding wheel



2) CVD diamond cutting tools



For cutting:



Hard metal alloy, copper and copper alloy, aluminum alloy and other nonferrous metal.



Engineering plastics



Complex materials



3) Wear parts



the performance parameters of CDK



Vickers-hardnesskg/mm 2 8000



densityg/cm 3.52



youngs module(Gpa) 850



Thermal >8



Chemistry stability Does not dissolve into any acid and alkali



rupture strengthMpa0.5mm,Thickness, 450



Thermal stability 800 degree



grind ratioten thousand 10-20