CVD Diamond Coated Tungsten Carbide (WC) Tool Inserts

In this paper a self-developed polycrystalline diamond coating was done on tungsten carbide (WC) tool insets by using simple thermal chemical vapor deposition technique. The growth of these films has been carried out at ~900 ºC temperature. as-grown the surface inserts have characterized Raman spectrometer and scanning electron microscope (SEM). morphological studies reveal that are high crystalline quality. possess compressive stress. micro-hardness indentation test WC bare also it found Vicker’s hardness is to be 1423.32 HV which 29% better than un-coated tools.