Title :
Electrochemical deposition of hydroxyapatite (HA) on titanium alloys for the implant surface bio-functionalization
Author :
Stirbu, Ionut ; Vizureanu, Petrica ; Ratoi, Mihaela ; Cimpoesu, Nicanor
Author_Institution :
Fac. of Mater. Sci. & Eng., Tech. Univ. Gh. Asachi from Iasi, Iasi, Romania
Abstract :
Titanium alloys are widely used in implantology. Electrochemical deposition of hydroxyapatite (HA) on Ti6Al4V was achieved through a two-step process, via monetite. The first step involves the electrochemical deposition of Monetite (CaHPO4) and in the second step it is chemically transformed into hydroxyapatite (Ca10 (PO4) 6 (OH) 2). The atomic proportion Ca:P is characterizing a monitite structure from the surface of the substrate. Monetite transformation into hydroxyapatite is achieved by immersing the electrochemically coated sample in NaOH 0.1 N for 90 hours at room temperature.
Keywords :
aluminium alloys; bioceramics; calcium compounds; coatings; electrochemistry; prosthetics; surface structure; titanium alloys; vanadium alloys; Ca10(PO4)6(OH)2-TiAlV; electrochemical coated sample; electrochemical deposition; hydroxyapatite; implant surface biofunctionalization; implantology; monetite transformation; monitite structure; substrate surface; temperature 293 K to 298 K; time 90 hour; titanium alloys; two-step process; Atomic layer deposition; Atomic measurements; Chemicals; Mechanical factors; Oxygen; Titanium; HA; Ti6Al4V; monetite;
Conference_Titel :
E-Health and Bioengineering Conference (EHB), 2013
Conference_Location :
Iasi
Print_ISBN :
978-1-4799-2372-4
DOI :
10.1109/EHB.2013.6707411
