Enhanced biocompatibility of CoCr implant material by Ti coating and micro-arc oxidation

✍ Scribed by Cheol-Min Han; Hyoun-Ee Kim; Yong-Sik Kim; Suk-Ku Han

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 315 KB
• Volume: 90B
• Category: Article
• ISSN: 1552-4973
• DOI: 10.1002/jbm.b.31270

✦ Synopsis

Abstract

The biocompatibility of CoCr alloy was significantly improved by forming a rough TiO~2~ layer on its surface. The TiO~2~ layer was formed by coating the CoCr alloy with titanium (Ti) through electron beam deposition followed by microarc oxidation (MAO). When Ti was coated on the surface, the biocompatibility of the CoCr alloy was enhanced and it was further improved by the MAO treatment. There were close relationships between the phase, morphology, and thickness of the TiO~2~ layer and the applied voltage. The biocompatibility of the specimens coated with Ti and subjected to MAO treatment was evaluated by in vitro alkaline phosphatase activity tests. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009