Development and Testing of an In-Core YSZ High-Temperature Reference Electrode

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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 make 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 stabilized zirconia (YSZ) membrane electrode. The YSZ electrode is constructed only from radiation-resistant materials (ceramics and metals) and can survive temperatures up to 350 °C. Special emphasis has been put on the ceramic-metal seal, which is a crucial part of the design.

Details

Original languageEnglish
Pages (from-to)30-37
JournalPowerPlant Chemistry
Volume11
Issue number4
Publication statusPublished - Apr 2009

Keywords

  • Corrosion potential, PWR water chemistry, YSZ reference electrode

ID: 366810