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Enhanced biocompatibility of CoCr implant material by Ti coating and micro‐arc oxidation
Author(s) -
Han CheolMin,
Kim HyounEe,
Kim YongSik,
Han SukKu
Publication year - 2009
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.31270
Subject(s) - biocompatibility , materials science , coating , alloy , titanium , layer (electronics) , titanium alloy , metallurgy , chemical engineering , composite material , engineering
The biocompatibility of CoCr alloy was significantly improved by forming a rough TiO 2 layer on its surface. The TiO 2 layer was formed by coating the CoCr alloy with titanium (Ti) through electron beam deposition followed by microarc oxidation (MAO). When Ti was coated on the surface, the biocompatibility of the CoCr 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