Development and testing of an in-core YSZ high temperature reference electrode

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Development and testing of an in-core YSZ high temperature reference electrode. / Bosch, Rik-Wouter; Wéber, Marcel; Vandermeulen, Willy; Van Dyck, Steven (Peer reviewer).

Water chemistry in nuclear reactor systems. Berlin, Germany, 2008.

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

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Bosch, R-W, Wéber, M, Vandermeulen, W & Van Dyck, S 2008, Development and testing of an in-core YSZ high temperature reference electrode. in Water chemistry in nuclear reactor systems. Berlin, Germany, International conference on water chemistry of nuclear reactor systems, Berlin, Germany, 2008-09-14.

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@inproceedings{ed4ae494dcfb47958fec4961a734dde4,
title = "Development and testing of an in-core YSZ high temperature reference electrode",
abstract = "The corrosion potential is a useful parameter to monitor the water chemistry of a Nuclear Power Plant (NPP). However the harsh conditions in the core of a nuclear reactor being the temperature, pressure and the presence of an intense radiation field makes it difficult to construct a reference electrode for this location. An attempt has been made to construct such a reference electrode based on the well-known Yttrium Stabilised Zirconia (YSZ) membrane electrode. The YSZ electrode has been tested under PWR conditons in the Callisto loop of the BR2 MTR. . The corrosion potentials measured had values between -750 and – 800 mV SHE. The reference electrodes were mechanically intact after one year of testing. The electrochemical response was however not anymore reliable as the electrode resistance had decreased in time. Originally this was attributed to leaking of the ceramic-metal sealing causing {"}short circuit{"} in the reference electrode. Recent tests show however that the YSZ (9 weight percent Yttrium) used up till now for the electrodes is not fully resistant to high temperature water. Depending on the material structure the life time varies between a few weeks to one year.",
keywords = "high temperature water, PWR, reference electrodes, Zirconium oxide",
author = "Rik-Wouter Bosch and Marcel W{\'e}ber and Willy Vandermeulen and {Van Dyck}, Steven",
note = "Score = 1; International conference on water chemistry of nuclear reactor systems ; Conference date: 14-09-2008 Through 18-09-2008",
year = "2008",
month = sep,
day = "15",
language = "English",
booktitle = "Water chemistry in nuclear reactor systems",

}

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TY - GEN

T1 - Development and testing of an in-core YSZ high temperature reference electrode

AU - Bosch, Rik-Wouter

AU - Wéber, Marcel

AU - Vandermeulen, Willy

A2 - Van Dyck, Steven

N1 - Score = 1

PY - 2008/9/15

Y1 - 2008/9/15

N2 - The corrosion potential is a useful parameter to monitor the water chemistry of a Nuclear Power Plant (NPP). However the harsh conditions in the core of a nuclear reactor being the temperature, pressure and the presence of an intense radiation field makes it difficult to construct a reference electrode for this location. An attempt has been made to construct such a reference electrode based on the well-known Yttrium Stabilised Zirconia (YSZ) membrane electrode. The YSZ electrode has been tested under PWR conditons in the Callisto loop of the BR2 MTR. . The corrosion potentials measured had values between -750 and – 800 mV SHE. The reference electrodes were mechanically intact after one year of testing. The electrochemical response was however not anymore reliable as the electrode resistance had decreased in time. Originally this was attributed to leaking of the ceramic-metal sealing causing "short circuit" in the reference electrode. Recent tests show however that the YSZ (9 weight percent Yttrium) used up till now for the electrodes is not fully resistant to high temperature water. Depending on the material structure the life time varies between a few weeks to one year.

AB - The corrosion potential is a useful parameter to monitor the water chemistry of a Nuclear Power Plant (NPP). However the harsh conditions in the core of a nuclear reactor being the temperature, pressure and the presence of an intense radiation field makes it difficult to construct a reference electrode for this location. An attempt has been made to construct such a reference electrode based on the well-known Yttrium Stabilised Zirconia (YSZ) membrane electrode. The YSZ electrode has been tested under PWR conditons in the Callisto loop of the BR2 MTR. . The corrosion potentials measured had values between -750 and – 800 mV SHE. The reference electrodes were mechanically intact after one year of testing. The electrochemical response was however not anymore reliable as the electrode resistance had decreased in time. Originally this was attributed to leaking of the ceramic-metal sealing causing "short circuit" in the reference electrode. Recent tests show however that the YSZ (9 weight percent Yttrium) used up till now for the electrodes is not fully resistant to high temperature water. Depending on the material structure the life time varies between a few weeks to one year.

KW - high temperature water

KW - PWR

KW - reference electrodes

KW - Zirconium oxide

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_94474

UR - http://knowledgecentre.sckcen.be/so2/bibref/5527

M3 - In-proceedings paper

BT - Water chemistry in nuclear reactor systems

CY - Berlin, Germany

T2 - International conference on water chemistry of nuclear reactor systems

Y2 - 14 September 2008 through 18 September 2008

ER -

ID: 85742