Interface control of atomic layer deposited oxide coatings by filtered cathodic arc deposited sublayers for improved corrosion protection

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Sublayers grown with filtered cathodic arc deposition (FCAD) were added under atomic layer deposited (ALD) oxide coatings for interface control and improved corrosion protection of low alloy steel. The FCAD sublayer was either Ta:O or Cr:O-Ta:O nanolaminate, and the ALD layer was Al2O 3-Ta2O5 nanolaminate, AlxTa yOz mixture or graded mixture. The total thicknesses of the FCAD/ALD duplex coatings were between 65 and 120 nm. Thorough analysis of the coatings was conducted to gain insight into the influence of the FCAD sublayer on the overall coating performance. Similar characteristics as with single FCAD and ALD coatings on steel were found in the morphology and composition of the duplex coatings. However, the FCAD process allowed better control of the interface with the steel by reducing the native oxide and preventing its regrowth during the initial stages of the ALD process. Residual hydrocarbon impurities were buried in the interface between the FCAD layer and steel. This enabled growth of ALD layers with improved electrochemical sealing properties, inhibiting the development of localized corrosion by pitting during immersion in acidic NaCl and enhancing durability in neutral salt spray testing.

Original languageEnglish
Pages (from-to)895-907
Number of pages13
JournalMaterials Chemistry and Physics
Volume147
Issue number3
DOIs
Publication statusPublished - Oct 15 2014

Fingerprint

Corrosion protection
Oxides
corrosion
arcs
coatings
Coatings
oxides
Steel
steels
Atomic layer deposition
Hydrocarbons
Pitting
High strength steel
high strength steels
pitting
sealing
Durability
atomic layer epitaxy
Salts
durability

Keywords

  • Chemical vapour deposition
  • Coatings
  • Corrosion
  • Corrosion test
  • Interfaces
  • Physical vapour deposition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Interface control of atomic layer deposited oxide coatings by filtered cathodic arc deposited sublayers for improved corrosion protection. / Härkönen, Emma; Tervakangas, Sanna; Kolehmainen, Jukka; Díaz, Belén; Światowska, Jolanta; Maurice, Vincent; Seyeux, Antoine; Marcus, Philippe; Fenker, Martin; Tóth, L.; Radnóczi, G.; Ritala, Mikko.

In: Materials Chemistry and Physics, Vol. 147, No. 3, 15.10.2014, p. 895-907.

Research output: Contribution to journalArticle

Härkönen, E, Tervakangas, S, Kolehmainen, J, Díaz, B, Światowska, J, Maurice, V, Seyeux, A, Marcus, P, Fenker, M, Tóth, L, Radnóczi, G & Ritala, M 2014, 'Interface control of atomic layer deposited oxide coatings by filtered cathodic arc deposited sublayers for improved corrosion protection', Materials Chemistry and Physics, vol. 147, no. 3, pp. 895-907. https://doi.org/10.1016/j.matchemphys.2014.06.035
Härkönen, Emma ; Tervakangas, Sanna ; Kolehmainen, Jukka ; Díaz, Belén ; Światowska, Jolanta ; Maurice, Vincent ; Seyeux, Antoine ; Marcus, Philippe ; Fenker, Martin ; Tóth, L. ; Radnóczi, G. ; Ritala, Mikko. / Interface control of atomic layer deposited oxide coatings by filtered cathodic arc deposited sublayers for improved corrosion protection. In: Materials Chemistry and Physics. 2014 ; Vol. 147, No. 3. pp. 895-907.
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