Dilawar, Nita; Kapil, Rahul; Vankar, V D; Avasthi, D.K.; Kabiraj, D; Mehta, G K
Diamond; Coating; Irradiation
Microcrystalline diamond thin films were deposited on cemented tungsten carbide cutting tools by hot-filament chemical vapour deposition process. The coatings deposited were irradiated with 50 MeV Si7q ions upto a dose of -1013 ions cmy2. The adhesion and wear characteristics of as-deposited and irradiated coatings were studied and it was found that irradiation induced increased adhesion of the coatings to the substrate resulting in reduced coating failure during wear tests.