Title: Grain growth control in nanocrystalline oxide ceramics
Abstract: Amorphous to nanocrystalline ZrO2CeO2 alloy powders were prepared by chemical precipitation, and uniaxially pressed at 4 GPa. Sintering at 1300°C (maximal shrinkage temperature) for 2.5 hrs in air was followed by grain growth between 1000°C to 1600°C and for 2 to 20 hrs. The evolution of the final density and grain size together with the measured activation energies are in agreement with the structural model of nanocrystalline grain clusters. According to this model, densification proceeds with negligible grain growth below the maximal shrinkage temperature.
Publication Year: 1995
Publication Date: 1995-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 9
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