Patent ID: 8277953
Filing Date: 2012-10-02
Classification: C25D,Y10T

Abstract:
1. An apparatus comprising: a work-piece; and a structured hard chrome layer electrodeposited onto the work-piece, the structured hard chrome layer having a surface topography in a longitudinal direction and an axial direction, the structured hard chrome layer comprising at least one protruding structure that is irregularly-shaped in at least the longitudinal direction, and a plurality of recessed structures that are irregularly-shaped in at least the longitudinal direction, wherein the at least one irregularly-shaped protruding structure is chosen from one or more labyrinth structures, one or more column-shaped structures, and combinations thereof, and wherein the plurality of irregularly-shaped recessed structures are chosen from one or more cup shaped structures, one or more labyrinth structures, and combinations thereof; wherein the plurality of irregularly-shaped recessed structures and the at least one irregularly-shaped protruding structure have no spherical laminar structure.