Coating for a titanium alloy substrate
AssigneeDePuy Synthes Products, Inc.
InventorsKerstin Thorwarth, Roland Hauert, Gotz Thorwarth
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Abstract
The present disclosure relates, at least in part, to a surgical implant and a method for manufacturing the surgical implant. In one embodiment, the surgical implant comprises a metallic substrate; a tantalum interlayer disposed adjacent to the metallic substrate and comprising α-tantalum and amorphous tantalum; at least one DLC layer disposed adjacent the tantalum interlayer; wherein the amorphous tantalum has a phase gradient increasing from the metallic substrate side to the DLC side; wherein the DLC layer has a hardness value and an elastic modulus value; and wherein the hardness value has a gradient increasing away from the tantalum side; and wherein the elastic modulus value has a gradient from the tantalum side.
Claims14
A surgical implant comprising:
- a metallic substrate;
- a tantalum interlayer disposed adjacent to the metallic substrate and comprising α-tantalum and amorphous tantalum;
- at least one diamond like carbon (“DLC”) layer disposed adjacent the tantalum interlayer;
- wherein the tantalum interlayer has a phase gradient from β-tantalum to α-tantalum or from amorphous tantalum to α-tantalum between a metallic substrate side and a DLC side;
- wherein the DLC layer has a hardness value and an elastic modulus value;
- and wherein the hardness value has a gradient increasing away from the tantalum side;
- and wherein the elastic modulus value has a gradient increasing away from the tantalum side.
Dependencies are inferred from the claim text.