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US 9,175,386 B2Granted
Coating for a CoCrMo substrate
AssigneeDePuy Synthes Products, Inc.
InventorsRoland Hauert, Goetz Thorwarth, Claudiu Falub, Ulrich Mueller, Cyril Voisard
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Abstract
A coating for a CoCrMo substrate including a first layer located directly on the substrate and including Ta(CoCrMo)0.5-2.0, a second layer located directly on the first layer and including tantalum, a third layer located directly on the second layer and including tantalum carbide, and a fourth layer located directly on the third layer and including diamond-like carbon (DLC).
Claims20
A coating for a CoCrMo substrate comprising:
- a first layer comprising Ta(CoCrMo)0.5-2.0;
- a second layer comprising alpha-tantalum;
- a third layer comprising tantalum carbide;
- and
- a fourth layer comprising diamond-like carbon (DLC),
- wherein the first layer, second layer, third layer, and fourth layer have a total thickness in the range of 0.5 μm to 10 μm, and
- wherein the first layer has a thickness of 1 nm to 5 nm, the second layer has a thickness of 20 nm to 1000 nm, and the third layer has a thickness of about 0.5 nm to 10 nm.
4 more elements
A coating for a CoCrMo substrate comprising:
- a first layer comprising Ta(CoCrMo)0.5-2.0;
- a second layer comprising alpha-tantalum;
- a third layer comprising tantalum carbide;
- and
- a fourth layer comprising diamond-like carbon (DLC),
- wherein the coating contains no beta-tantalum.
3 more elements
A coating for a CoCrMo substrate comprising:
- a first layer comprising Ta(CoCrMo)0.5-2.0;
- a second layer comprising alpha-tantalum;
- a third layer comprising tantalum carbide;
- and
- a fourth layer comprising diamond-like carbon (DLC),
- wherein the second layer is essentially free of beta-tantalum, and
- wherein the first layer has a thickness of 1 nm to 5 nm, the second layer has a thickness of 20 nm to 1000 nm, and the third layer has a thickness of about 0.5 nm to 10 nm.
4 more elements
Dependencies are inferred from the claim text.