Hot-filament chemical vapor deposition of amorphous carbon film on diamond grits and induction brazing of the diamond grits

► Hot-filament CVD for deposition amorphous carbon film on diamond grits. ► The deposited diamond grits were induction-brazed using NiCr alloy. ► The deposited diamond grits protruding from the filler alloy maintain good sharpness. ► The film enhances bonding strength between the filler alloy and diamond grits.