Surface functionalization of anodized tantalum with Mn3O4 nanoparticles for effective corrosion protection in simulated inflammatory condition

Aydin Bordbar Khiabani, Sara Bahrampour, Masoud Mozafari, Michael Gasik

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)
46 Downloads (Pure)

Abstract

The study highlights the corrosion behavior of untreated and treated tantalum with addition of trimanganese tetraoxide (Mn3O4) nanoparticles in simulated inflammatory media. The anodic layer was produced on pure tantalum by anodization in electrolytes composed of ammonium fluoride, ethylene glycol, and water. Nanoparticles were deposited uniformly on the surface of the anodized tantalum with the electrophoretic deposition (EPD) method. The results revealed that the anodic/EPD coating possessed more compact microstructure and higher bond strength than the anodic coating. Simulated inflammatory medium was based on phosphate-buffered saline with additions of H2O2 and HCl. Potentiodynamic polarization and electrochemical impedance spectroscopy studies showed that the anodic and Mn3O4 layers protected the tantalum from corroding in an acidic inflammatory condition. Finally, the corrosion protection mechanism of Mn3O4 NPs in inflammatory condition was presented.
Original languageEnglish
Pages (from-to)3148-3156
Number of pages9
JournalCeramics International
Volume48
Issue number3
Early online date20 Oct 2021
DOIs
Publication statusPublished - 1 Feb 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Anodization
  • Corrosion behavior
  • Electrophoretic deposition
  • Simulated inflammatory
  • Tantalum implants

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