Effect of processing conditions on the structural properties and corrosion behavior of TiO2-SiO2 multilayer coatings derived via the sol-gel method

Saman Khosravi H, Vignaswaran K. Veerapandiyan, Rudolf Vallant, Klaus Reichmann

Research output: Contribution to journalArticle

Abstract

TiO2–SiO2 multilayer protective coatings were prepared via the sol-gel method on a C45E steel substrate. The influences of the number of layers, annealing temperature and annealing atmosphere on the corrosion resistance were investigated. Electrochemical characterization showed correlations between the processing parameters and the corrosion resistance. A maximum polarization resistance of 61 kΩ cm2 was achieved with coatings of three layers annealed at 900 °C in air compared to just 2 kΩ cm2 for the uncoated C45E steel sample. This research revealed the possibility of preparing a dense corrosion-resistant layer on C45E steel with minimal surface defects by optimizing the processing parameters.
Original languageEnglish
Pages (from-to)17741-17751
Number of pages11
JournalCeramics International
Volume46
Issue number11
Early online date6 Apr 2020
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • Sol-gel Multilayer coating TiO2–SiO2 Corrosion behavior
  • Multilayer coating
  • TiO –SiO
  • Sol-gel
  • Corrosion behavior

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Process Chemistry and Technology

Fields of Expertise

  • Advanced Materials Science

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