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Tomasz Moskalewicz,Marcin Kot,Sigrid Seuss,Aleksandra Kędzierska,Aleksandra Czyrska-Filemonowicz,Aldo R. Boccaccini 대한금속·재료학회 2015 METALS AND MATERIALS International Vol.21 No.1
Nano-hydroxyapatite/chitosan (nc-HA/chitosan) composite coatings were produced on two phase (α+β) Ti6Al7Nbtitanium alloy substrates by electrophoretic deposition (EPD). The microstructure of the coatings was examinedby scanning- and transmission electron microscopy methods as well as by X-ray diffractometry. The coatings,770 nm - 800 nm thick, were uniform, without any cracks or presence of large voids and they exhibited good adhesionto the titanium alloy substrate. The microstructure of the coatings consisted of nc-HA needle-like particleshomogeneously embedded in a chitosan matrix. The deposited coatings exhibited good adhesion to the substrate. The best adhesion to the titanium alloy was determined for the coating deposited from suspensions containing4 g/L of HA at 10 V during 240 s. The results confirm EPD as a convenient method to develop uniform and crackfreenanoscale organic-inorganic composite coatings on two phase titanium alloy substrates with potentialapplication in orthopedic and dental implants.