Cermet is a hard metal used for manufacturing cutting tools. The hard metals have at minimal, two types of materials: a toughness material (Cobalt) and the hard component (titanium carbide). The normal use for this type of tool is in finish turning operations.
Japan is the country where this type of material is widely used.
A great variety of cermets have been produced on a small scale, but only a few types have significant commercial use: oxide-base and carbide-base cermets.
The most common type of oxide-base cermets contains Al2O3 ceramic particles (ranging from 30 to 70% volume fraction) and a chromium or chromium-alloy matrix.
There are three major groups of carbide-base cermets: tungsten, chromium, and titanium.
Other important types include the TiC-base cermets, Al2O3-base cermets, and UO2 cermets specially developed for nuclear reactors.
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