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Correlations between sintering conditions and microstructure in ceramics of composition Li0.80Mg0.20 (Ta0.80Ti0.20)O3
Published online by Cambridge University Press: 31 January 2011
Abstract
Two quite different types of microstructures have been detected for MgTiO3-enriched LiTaO3 ceramics corresponding either to small size grains and open porosity or to large size grains with closed porosity and appearance of microcracks. The first structure appears in short sintering processes at relatively low temperature. The textural change is explained by transitory formation of a grain boundary phase that leads to quick coalescence of the small grains.
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