Patent ID: 6228471
Filing Date: 2001-05-08
Classification: A61L,C23C,F16C,Y10T

Abstract:
A substrate (1) covered at least in part with a coating (6) comprising a number of layered structures (2) each such structure comprisinga first diamond like nanocomposite composition layer (3) closest to the substrate, which composition comprises interpenetrating networks of a-C:H and a-Si:O,a second diamond like carbon composition layer (4) on top of said first layer,a transition layer (5) between said first and second layer comprising a mixture of said diamond like nanocomposite and said diamond like carbon compositions; andwhen the number of layered structures (2) is greater than one, then the coating (6) comprises an intermediate layer (7) comprising a mixture of said diamond like carbon and diamond like nanocomposite compositions sandwiched between each pair of consecutive layered structures (2).