Methods of applying a nanocrystalline diamond film to a cutting tool

摘要: Methods of applying a nanocrystalline diamond film to a cutting tool are provided. In the methods, the cutting tool comprises tungsten carbide and has a cutting edge with a radius of curvature of no more than about 1 Lum. The methods can comprise seeding a cutting Surface of the cutting tool with a diamond nanopowder, the cutting Surface having a reduced cobalt content, and depositing a nanocrystalline diamond film having a thickness of no more than about 1 um onto the seeded cutting Surface. The methods can also comprise implanting carbonions into a cutting Surface of the cutting tool to provide a carbide rich cutting Surface and depositing a nanocrystalline diamond film having a thickness of no more than about 1 um onto the carbide-rich cutting Surface.