Wear resistant assembly comprising layers of tungsten carbide and tungsten carbide stabilized diamond like carbon, has specific thickness for two adjacent layers

摘要

Two adjacent layers in the assembly have a specific thickness in the nano-scale region. A wear-resistant assembly comprises alternating layers of tungsten carbide (A) and diamond-like carbon (DLC) stabilized with tungsten carbide (B). The thickness of two adjacent layers in the assembly is 5-10 nm. An independent claim is also included for a method for producing the assembly by sputtering, in which the sputtering conditions are changed in order to obtain the respective layers (A) and (B), the time in between these changes being 0.5-1 minute.