Grain Boundaries in Fine-Grained Magnesium-Doped Aluminas |
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| Authors: | SYLVIE LARTIGUE LOUISETTE PRIESTER |
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| Affiliation: | Laboratoire de Métallurgie Structurale, UA 1107, Universite Paris-Sud, 91405 Orsay Cedex, France |
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| Abstract: | The distribution and some characteristics of grain boundaries have been determined in three samples of fine-grained Mg-doped alumina which had undergone different thermo-mechanical treatments: as-pressed at 1500°C, stress-free annealed, and deformed at the same temperature. The analyses of some particular features point out the role of the grain-boundary type "special' or "general' on the creep deformation mechanisms. |
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