Deposition of hydroxyapatite-incorporated TiO2 coating on titanium using plasma electrolytic oxidation coupled with electrophoretic deposition
authors Ulasevich, SA; Kulak, AI; Poznyak, SK; Karpushenkov, SA; Lisenkov, AD; Skorb, EV
nationality International
journal RSC ADVANCES
keywords MICRO-ARC OXIDATION; WATER-ABSORPTION CHARACTERISTICS; ONE-STEP APPROACH; APATITE FORMATION; SURFACE; SUBSTRATE; IMPLANTS; ADHESION; FILMS; GEL
abstract A porous hydroxyapatite (HA)-incorporated TiO2 coating has been deposited on the titanium substrate using a plasma electrolytic oxidation coupled with electrophoretic deposition (PEO-EPD). Potassium titanium(IV) oxalate is decomposed by micro arcs generated on the anode producing TiO2 while HA particles have been simultaneously deposited on anode during EPD process. Hydroxyapatite and TiO2 particles have been coagulated into roundish conglomerates with the average diameter in a range of 200-600 nm. The microstructure, as well as elemental and phase composition of the coatings have been examined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), glow discharge optical emission spectroscopy (GDOES), fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). XRD has showed that the coatings are composed mainly of HA, rutile and anatase phases. The composition and surface morphologies are not strongly dependent on the applied voltages. The amount of HA deposited into the coating increases with increasing the applied voltage. The wear resistance of PEO-EPD coatings has been assessed using tribological tests. The bioactivity of the obtained coatings has been investigated in a simulated blood fluid.
publisher ROYAL SOC CHEMISTRY
issn 2046-2069
year published 2016
volume 6
issue 67
beginning page 62540
ending page 62544
digital object identifier (doi) 10.1039/c6ra10560b
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000379678200062
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 3.119
5 year journal impact factor 3.098
category normalized journal impact factor percentile 59.04
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg