Hydrothermal deposition of zirconia coatings on pre-oxidized BWR structural materials

Z. F. Zhou, E. Chalkova, Serguei Lvov, P. H. Chou

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

An in situ hydrothermal deposition process is being developed to apply a thin coating of zirconia onto the structural materials used in Boiling Water Reactors as a potential method for mitigating intergranular stress corrosion cracking. The process has successfully deposited ZrO2 onto as-received interior surfaces of 304 stainless steel and Alloy 600 tubes [Z.F. Zhou, E. Chalkova, S.N. Lvov, P. Chou, R. Pathania, Corros. Sci. 49 (2007) 830]. This paper discusses the application of the coating on specimens with different surface conditions: as-received; ground to remove the as-received surface; and ground and pre-oxidized. For comparable deposition parameters and for a given substrate, the different surface conditions did not influence the morphology or the thickness of the coating, but had a substantial impact on adhesion. As in our previous study, electrochemical potentials of the coated specimens in simulated BWR environment were not clearly lower than those of uncoated specimens [Zhou et al., 2007].

Original languageEnglish (US)
Pages (from-to)229-237
Number of pages9
JournalJournal of Nuclear Materials
Volume378
Issue number3
DOIs
StatePublished - Sep 1 2008

Fingerprint

zirconium oxides
Zirconia
coatings
Coatings
boiling water reactors
intergranular corrosion
stress corrosion cracking
Boiling water reactors
Stainless Steel
Stress corrosion cracking
stainless steels
adhesion
Adhesion
Stainless steel
tubes
zirconium oxide
Substrates

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Zhou, Z. F. ; Chalkova, E. ; Lvov, Serguei ; Chou, P. H. / Hydrothermal deposition of zirconia coatings on pre-oxidized BWR structural materials. In: Journal of Nuclear Materials. 2008 ; Vol. 378, No. 3. pp. 229-237.
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Hydrothermal deposition of zirconia coatings on pre-oxidized BWR structural materials. / Zhou, Z. F.; Chalkova, E.; Lvov, Serguei; Chou, P. H.

In: Journal of Nuclear Materials, Vol. 378, No. 3, 01.09.2008, p. 229-237.

Research output: Contribution to journalArticle

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