Patents Assigned to Oberlikon Trading AG, Truebbach
  • Patent number: 8491989
    Abstract: The coating system comprises: at least one layer of type A, a layer of type A substantially consisting of (AlyCr1-y)X, wherein X depicts one of the group consisting of N, CN, BN, NO, CNO, CBN, BNO and CNBO, y describing the stoichiometric composition of the metallic phase fraction; and at least one layer of type B, a layer of type B substantially consisting of (AluCr1-u-v-wSivMew)X, wherein X depicts one of the group consisting of N, CN, BN, NO, CNO, CBN, BNO or CNBO, and wherein Me depicts one of the group consisting of W, Nb, Mo and Ta or a mixture of two or more of the constituents of that group, u, v and w describing the stoichiometric composition of the metallic phase fraction. A thickness ratio of said layer of type A to said layer of type B is higher than 1. The workpiece comprises such a coating system. Through this, an excellent wear-protection is provided, and the coating system and workpieces can be used for a broad range of different applications.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: July 23, 2013
    Assignee: Oberlikon Trading AG, Truebbach
    Inventor: Markus Lechthaler