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.
|State||Published - Apr 2009|