Developing self-repairing oxides to protect zinc

S. Thomas, N. Birbilis, I S Cole

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Long-term corrosion protection of zinc can be naturally induced by zincs own corrosion products (zinc patina). This patina comprises of multiple layers, which includes a lowermost thin barrier oxide and upper precipitated layers. Natural densification (akin to a form of 'selfrepair') has been observed in portions of the precipitated layers; suggesting that it may be possible to engineer self-repairing oxides for the protection of zinc. With an aim to understand processes which could be leading to this natural densification; i) The corrosion of zinc has been studied as a function of pH; ii) the cathodic activity of zinc oxides has been investigated and also iii) the effect of certain anions namely chlorides and carbonates on zinc passivity has been clarified.

Original languageEnglish
Title of host publicationAnnual Conference of the Australasian Corrosion Association 2012
Subtitle of host publicationMelbourne, Victoria, Australia; 11-14 November 2012
Place of PublicationKerrimuir VIC Australia
PublisherAustralasian Corrosion Association
Pages677-686
Number of pages10
ISBN (Print)9781622769698
Publication statusPublished - 2012
EventAustralasian Corrosion Association (ACA) Conference 2012: Corrosion and Prevention - Crown Conference Centre, Melbourne, Australia
Duration: 11 Nov 201214 Nov 2012

Conference

ConferenceAustralasian Corrosion Association (ACA) Conference 2012
Abbreviated titleACA 2012
CountryAustralia
CityMelbourne
Period11/11/1214/11/12
OtherCorrosion Management for a Sustainable World: Transport, Energy, Mining, Life Extension and Modelling

Keywords

  • Oxide
  • Passivity
  • Self-repair
  • Zinc

Cite this

Thomas, S., Birbilis, N., & Cole, I. S. (2012). Developing self-repairing oxides to protect zinc. In Annual Conference of the Australasian Corrosion Association 2012: Melbourne, Victoria, Australia; 11-14 November 2012 (pp. 677-686). [127] Australasian Corrosion Association.