Abstract
A systematic study oil the powder metallurgical aspects of thoria—10 mole % yttria system has been carried out. Powders of ThOa—10 mole % Y2O3 compositions were derived by decomposition and calcination of mixed nitrates and co-precipitated oxalates. They were evaluated for their powder characteristics including crystallite size and morphology, compaction and sintering behaviour. The microstructure and oxide ion transference number of the various sintered specimens have been evaluated.
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