Detailed Product Description

CVD diamond films 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 CH₄ and C₃H₈ 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