Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of_____________________?

Chemical Engineering Basics 02/09/2020

A. 90% tungsten carbide and 10% cobalt
B. 70% aluminium oxide & 30% silica
C. 30% nickel, 15% chromium & 55% tungsten
D. 65% tungsten & 35% zirconium

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