Ceramic cutting tools are made up of
Tungsten carbide
Silicon oxide
Mixture of oxides of aluminum
None of these
Mixture of oxides of aluminum
Ceramic
cutting tools are made from alumina 
and silicon nitride (SiN)
Hence, the correct option is (C).
Recent
advancement have introduced the use of silicon carbide (SiC) in order to enhance
the performance of cutting tool.
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