Medical implant and related methods
An implant includes a substrate and a coating. The substrate includes a first outer surface. The coating is disposed on the first outer surface. The coating includes eighty percent titanium dioxide and twenty percent aluminum oxide.
1 . An implant comprising:
a substrate including a first outer surface; and
a coating disposed on the first outer surface, the coating including eighty percent titanium dioxide (TiO 2 ) and twenty percent aluminum oxide (Al 2 O 2 ),
wherein the coating includes a second outer surface, and wherein the coating defines (i) an average microhardness greater than seven hundred Vickers between the first outer surface and the second outer surface, (ii) a roughness less than 0.1 microns at the second outer surface, and (iii) a thickness greater than fifty microns relative to the first outer surface.
2 . The implant of claim 1 , wherein the coating includes a plurality of interstitial voids defining a porosity between two percent and ten percent.
3 . The implant of claim 1 , wherein the first outer surface includes a plurality of protrusions.
4 . The implant of claim 1 , wherein the coating includes a lamellar pattern.
5 . The implant of claim 4 , wherein the lamellar pattern includes a plurality of waves formed from an homogenous mixture of the aluminum oxide and the titanium dioxide.
6 . The implant of claim 1 , wherein the thickness is between fifty microns and three hundred microns relative to the first outer surface.
7 . The implant of claim 1 , wherein the thickness is between fifty microns and two hundred microns relative to the first outer surface.