Zn-, Cu- or Ag-incorporated micro-arc coatings on titanium alloys

Properties and behavior in synthetic biological media

Mariya B. Sedelnikova, Ekaterina G. Komarova, Yurii P. Sharkeev, Anna V. Ugodchikova, Lyudmila S. Mushtovatova, Mariia R. Karpova, Vladimir V. Sheikin, Larisa S. Litvinova, Igor A. Khlusov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Zn-, Cu- or Ag-incorporated calcium phosphate coatings were deposited on pure titanium and Ti-40 wt% Nb substrates by the micro-arc oxidation method. Microstructure, morphology, phase composition, physico-chemical and antibacterial properties of the formed coatings and their behavior in synthetic biological media have been studied. Due to the different compositions of the electrolytes and different substrates the MAO process took place at various electro-physical parameters such as current densities and voltages. As a result, the coatings had different properties, phase composition and were characterized by a different behavior in synthetic biological fluids. When using the acidic electrolyte, the applied voltage varied in the range of 200–300 V. In the case of an alkaline electrolyte, the voltage range was 350–450 V. The current density of the MAO process in acidic electrolyte was ten times higher than that in alkaline electrolyte. Therefore, the thickness, roughness and porosity of the Zn-, Cu-incorporated calcium phosphate coatings deposited in acidic electrolyte were the highest. The Zn-, Cu-incorporated coatings showed weight gain in the biological fluids due to intensive dissolution and consequent sedimentation of the calcium phosphates on the coating surface. Ag-incorporated coatings dissolved slowly in the biological fluid. The calcium phosphate coatings containing trace elements Zn, Cu or Ag demonstrated antimicrobial activity against Staphylococcus aureus 209P and in general, did not show cytotoxic effect on myelocariocytes.

Original languageEnglish
Pages (from-to)52-68
Number of pages17
JournalSurface and Coatings Technology
Volume369
DOIs
Publication statusPublished - 15 Jul 2019

Fingerprint

titanium alloys
Titanium alloys
arcs
Electrolytes
Calcium phosphate
Phosphate coatings
coatings
Coatings
calcium phosphates
electrolytes
Phase composition
Fluids
Monoamine Oxidase
Electric potential
Current density
fluids
electric potential
Calcium Phosphates
Substrates
current density

Keywords

  • Antibacterial activity
  • Calcium phosphate coatings
  • Micro-arc oxidation
  • Microelements
  • Synthetic biological media

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Zn-, Cu- or Ag-incorporated micro-arc coatings on titanium alloys : Properties and behavior in synthetic biological media. / Sedelnikova, Mariya B.; Komarova, Ekaterina G.; Sharkeev, Yurii P.; Ugodchikova, Anna V.; Mushtovatova, Lyudmila S.; Karpova, Mariia R.; Sheikin, Vladimir V.; Litvinova, Larisa S.; Khlusov, Igor A.

In: Surface and Coatings Technology, Vol. 369, 15.07.2019, p. 52-68.

Research output: Contribution to journalArticle

Sedelnikova, Mariya B. ; Komarova, Ekaterina G. ; Sharkeev, Yurii P. ; Ugodchikova, Anna V. ; Mushtovatova, Lyudmila S. ; Karpova, Mariia R. ; Sheikin, Vladimir V. ; Litvinova, Larisa S. ; Khlusov, Igor A. / Zn-, Cu- or Ag-incorporated micro-arc coatings on titanium alloys : Properties and behavior in synthetic biological media. In: Surface and Coatings Technology. 2019 ; Vol. 369. pp. 52-68.
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AU - Ugodchikova, Anna V.

AU - Mushtovatova, Lyudmila S.

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