Development of a hydrothermal deposition process for applying zirconia coatings on BWR materials for IGSCC mitigation

Z. F. Zhou; E. Chalkova; S. N. Lvov; P. Chou; R. Pathania

doi:10.1016/j.corsci.2006.06.019

Development of a hydrothermal deposition process for applying zirconia coatings on BWR materials for IGSCC mitigation

Z. F. Zhou, E. Chalkova, S. N. Lvov, P. Chou, R. Pathania

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

An in situ hydrothermal deposition process is being developed to apply a film of zirconia (ZrO₂) onto interior surface of 304 stainless steel and Alloy 600 as a potential method for mitigating intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWRs). The coating process is discussed. The obtained zirconia coatings are adherent. Monoclinic ZrO₂ is the dominant phase when ZrO(ClO₄)₂ was the oxidant; tetragonal ZrO₂ became the dominant phase when ZrO(NO₃)₂ was the oxidant. A preliminary experiment did not measure significantly lower values of the electrochemical potential (ECP), relative to the uncoated specimen over a wide range of dissolved oxygen in 265 °C water.

Original language	English (US)
Pages (from-to)	830-843
Number of pages	14
Journal	Corrosion Science
Volume	49
Issue number	2
DOIs	https://doi.org/10.1016/j.corsci.2006.06.019
State	Published - Feb 1 2007

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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title = "Development of a hydrothermal deposition process for applying zirconia coatings on BWR materials for IGSCC mitigation",

abstract = "An in situ hydrothermal deposition process is being developed to apply a film of zirconia (ZrO2) onto interior surface of 304 stainless steel and Alloy 600 as a potential method for mitigating intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWRs). The coating process is discussed. The obtained zirconia coatings are adherent. Monoclinic ZrO2 is the dominant phase when ZrO(ClO4)2 was the oxidant; tetragonal ZrO2 became the dominant phase when ZrO(NO3)2 was the oxidant. A preliminary experiment did not measure significantly lower values of the electrochemical potential (ECP), relative to the uncoated specimen over a wide range of dissolved oxygen in 265 °C water.",

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T1 - Development of a hydrothermal deposition process for applying zirconia coatings on BWR materials for IGSCC mitigation

AU - Zhou, Z. F.

AU - Chalkova, E.

AU - Lvov, S. N.

AU - Chou, P.

AU - Pathania, R.

PY - 2007/2/1

Y1 - 2007/2/1

N2 - An in situ hydrothermal deposition process is being developed to apply a film of zirconia (ZrO2) onto interior surface of 304 stainless steel and Alloy 600 as a potential method for mitigating intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWRs). The coating process is discussed. The obtained zirconia coatings are adherent. Monoclinic ZrO2 is the dominant phase when ZrO(ClO4)2 was the oxidant; tetragonal ZrO2 became the dominant phase when ZrO(NO3)2 was the oxidant. A preliminary experiment did not measure significantly lower values of the electrochemical potential (ECP), relative to the uncoated specimen over a wide range of dissolved oxygen in 265 °C water.

AB - An in situ hydrothermal deposition process is being developed to apply a film of zirconia (ZrO2) onto interior surface of 304 stainless steel and Alloy 600 as a potential method for mitigating intergranular stress corrosion cracking (IGSCC) in boiling water reactors (BWRs). The coating process is discussed. The obtained zirconia coatings are adherent. Monoclinic ZrO2 is the dominant phase when ZrO(ClO4)2 was the oxidant; tetragonal ZrO2 became the dominant phase when ZrO(NO3)2 was the oxidant. A preliminary experiment did not measure significantly lower values of the electrochemical potential (ECP), relative to the uncoated specimen over a wide range of dissolved oxygen in 265 °C water.

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