Reaction of perovskite with the yttria dopant component in YSZ

2 Reaction of perovskite with the yttria (dopant) component in YSZ Since the yttria component has a large stabilisation on forming solid solution, it is rare for it to react with other oxides. One exceptional case is the reaction with vanadium oxide  

The driving force for this reaction is the large stabilisation energy of YVO4. This can be categorised as the salt formation between an acidic oxide (V2O5) and a basic oxide (Y2O3). Since yttria, which is the stabiliser of the cubic phase, is extracted, this reaction leads to serious destabilisation of YSZ. 

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