Titanium carbonitride

Titanium carbonitride (TiCN) is harder than titanium nitride (TiN) and it can be used without lubrication. Titanium carbonitride is applied to machine tool cutters by vapor deposition.

Titanium carbonitride coatings have high hardness and wear resistance. Titanium carbonitride is a cermet—a composite of metal and ceramic. The ceramic provides high hardness, and the metal provides toughness.

Titanium carbonitride can be prepared by reacting titanium dioxide and carbon in a furnace containing an inert gas, then reducing in nitrogen gas.

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