Applications of Titanium Carbide

Titanium carbide attracted great interest for several structural applications. Therefore, TiC can be used in cutting tools because of its combination of wear resistance and high hardness. It can also be used as a coating for abrasive steel bearings and wear resistant tools. In addition, it can be used to enhance the conductivity of materials and as a nucleating agent.

In the middle of the 1960s, the wear resistance of such tools was increased appreciably by the deposition of thin coatings of TiN, TiC, and other refractory compounds. The increase in the lifetime of the tools due to such coatings depends on the improved wear resistance and the lower cutting temperature due to a reduced friction between the tool and the work material. During the last years, the domains of application for these coatings have been extended to ordinary steel tools and high-speed steels. Commercially, high-speedsteel drills coated with TiN have been introduced. The wear life of such coated drills is 4 to 6 times longer than that of uncoated drills.

In addition, coated drills show better resistance to corrosion and erosion. TiC are also used in electronic devices, as diffusion barriers in integrated circuits,, molded bipolar plates for highvoltage battery, and fuel power sources.

Moreover, TiC is employed as coatings for pump shafts, packing sleeves, feed screws for the chemical industry, as coatings for molding tools, and kneading elements for plastic processing. They are also utilized as coatings for fusion-reactor applications. TiC is very suitable for use high-speed cutting tool applications for reducing thermal stresses and cracking.

Furthermore, TiC is effectively utilised in cermets due to its low friction coefficient and higher oxidation resistance compared to cemented tungsten carbide. TiC is also widely used in different branches of machine construction due to its high strength and hardness.

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