How DTC Produces DiaTiger® CVD Diamond
Properties of CVD Diamond Coating
Tools That Can Be Coated
FAQ's

DiaTiger® CVD Diamond Coating is produced in a vacuum chamber using a hot-filament chemical vapor deposition process (CVD). Carbon containing gases are flowed into the vacuum chamber and the high temperature CVD diamond coating process causes the carbon atoms found in the gas to re-bond in a diamond crystal structure on the tool’s surface to slowly grow a crystalline diamond coating.

The coating process temperature is in the range of 1,500° F (815.5° C) limiting tool material that can be coated to solid tungsten carbide. Brazed carbide tipped tools and tools made of HSS cannot be coated.

DiaTiger® CVD Diamond Coating is mechanically bonded to the tool by growing diamond crystals that anchor themselves into microscopic pores on the tool’s surface.  The microscopic pores are created at DTC prior to coating by removing small amounts of cobalt from the tungsten carbide surface in a controlled treatment process.

Selecting a grade of tungsten carbide that is well suited for the surface treatment procedure before coating has an important bearing on efficiency of the procedure and the quality and consistency of the diamond coating adhesion. DTC has extensive experience working with a variety of carbide grades that are achieving excellent adhesion of DiaTiger® CVD Diamond Coating.