Abstract
A specifically designed reference electrode was developed for analyzing the electrochemical behaviors of alloy materials in supercritical water (SCW) environments and identifying the associated electrochemical parameters. The internal Zr/ZrO2 reference electrodes constructed for high-temperature conditions were manufactured and adopted to measure the electrochemical corrosion potential (ECP) of the sample in SCW environments. Before the electrochemical analysis, the oxidation behaviour of zirconium would be investigated in SCW environment. The mass gain of zirconium is assumed due to formation of ZrO2 and there was only 78% of the original thickness of zirconium existed after the 1300 h immersion test in SCW environments with 8.3 ppm dissolved oxygen. In deaerated SCW environments, the thickness of zirconium is about 88% of the original one. The outcome indicated that the laboratory-made Zr/ZrO2 reference electrode was able to continuously operate for several months and delivered consistent and steady ECP data of the sample in SCW environments.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
GEN IV International Forum, GIF 2007 Annual Report, pp. 7–11 (2007)
A Technology Roadmap for Generation IV Nuclear Energy Systems, Report No. GIF002-00, 1 Dec 2002
G.S. Was, S. Teysseyre, Z. Jiao, Corrosion of austenitic alloys in supercritical water. Corrosion 62(11), 989–1005 (2006)
P. Kritzer, Corrosion in High-Temperature and Supercritical Water and Aqueous Solutions: Influence of Solution and Materials Parameters. SCR, Nov 6–8 (Tokyo, Japan, 2000)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Li, YH., Tung, YM., Yeh, TK., Wang, MY. (2019). Feasibility Study of the Internal Zr/ZrO2 Reference Electrodes in Supercritical Water Environments. In: Jackson, J., Paraventi, D., Wright, M. (eds) Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-04639-2_70
Download citation
DOI: https://doi.org/10.1007/978-3-030-04639-2_70
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-04638-5
Online ISBN: 978-3-030-04639-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)