AlxTayOz mixture coatings prepared using atomic layer deposition for corrosion protection of steel

Emma Härkönen, Belén Díaz, Jolanta Światowska, Vincent Maurice, Antoine Seyeux, Martin Fenker, L. Tóth, G. Radnóczi, Philippe Marcus, Mikko Ritala

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Atomic layer deposited (ALD) 50 nm AlxTayO z mixture coatings are grown on steel for corrosion protection. In morphological and compositional analyses the coatings are found to be uniform, conformal, well-adhered, and low in defect density. Corrosion protection properties are evaluated with polarization measurements and neutral salt spray (NSS) testing. The sealing properties of the mixtures improve with increasing aluminum oxide content, whereas the protection durability improves with increasing tantalum oxide content. In comparison to single-layer and nano-laminate ALD Al2O3 and Ta2O5 coatings, all mixtures are found to have better protective properties. Corrosion protection of steel with 50 nm AlxTayOz mixture coatings of varying composition, produced using atomic layer deposition (ALD), is studied. Analysis of the morphology, composition, and protective properties of the coatings shows that the coatings are conformal, uniform, and very low in defect density. The corrosion durability of steel is significantly improved with all mixture coatings. Furthermore, the mixtures are found to be superior to ALD-produced Al2O3, Ta2O 5, and Al2O3/Ta2O5 nano-laminate coatings

Original languageEnglish
Pages (from-to)194-203
Number of pages10
JournalChemical Vapor Deposition
Volume19
Issue number4-6
DOIs
Publication statusPublished - Jun 2013

Fingerprint

Atomic layer deposition
Steel
Corrosion protection
atomic layer epitaxy
corrosion
steels
coatings
Coatings
Defect density
durability
laminates
Laminates
Durability
Tantalum oxides
tantalum oxides
Aluminum Oxide
defects
sealing
Chemical analysis
sprayers

Keywords

  • ALD
  • Coatings
  • Corrosion
  • Low Alloy Steel
  • Mixtures
  • Oxides

ASJC Scopus subject areas

  • Chemistry(all)
  • Process Chemistry and Technology
  • Surfaces and Interfaces

Cite this

Härkönen, E., Díaz, B., Światowska, J., Maurice, V., Seyeux, A., Fenker, M., ... Ritala, M. (2013). AlxTayOz mixture coatings prepared using atomic layer deposition for corrosion protection of steel. Chemical Vapor Deposition, 19(4-6), 194-203. https://doi.org/10.1002/cvde.201207028

AlxTayOz mixture coatings prepared using atomic layer deposition for corrosion protection of steel. / Härkönen, Emma; Díaz, Belén; Światowska, Jolanta; Maurice, Vincent; Seyeux, Antoine; Fenker, Martin; Tóth, L.; Radnóczi, G.; Marcus, Philippe; Ritala, Mikko.

In: Chemical Vapor Deposition, Vol. 19, No. 4-6, 06.2013, p. 194-203.

Research output: Contribution to journalArticle

Härkönen, E, Díaz, B, Światowska, J, Maurice, V, Seyeux, A, Fenker, M, Tóth, L, Radnóczi, G, Marcus, P & Ritala, M 2013, 'AlxTayOz mixture coatings prepared using atomic layer deposition for corrosion protection of steel', Chemical Vapor Deposition, vol. 19, no. 4-6, pp. 194-203. https://doi.org/10.1002/cvde.201207028
Härkönen, Emma ; Díaz, Belén ; Światowska, Jolanta ; Maurice, Vincent ; Seyeux, Antoine ; Fenker, Martin ; Tóth, L. ; Radnóczi, G. ; Marcus, Philippe ; Ritala, Mikko. / AlxTayOz mixture coatings prepared using atomic layer deposition for corrosion protection of steel. In: Chemical Vapor Deposition. 2013 ; Vol. 19, No. 4-6. pp. 194-203.
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