Phases investigation in the antimony doped Bi2O3 system
The influence of Sb ions, introduced as dopants in alpha-Bi2O3, on the structure of the oxide polymorph forms obtained at high temperature is studied. The structural changes of alpha-Bi2O3 for compositions in the system Bi2-xSbxO3 (x = 0, 0.05, 0.1, 0.15, 0.2), at different heat treatment temperatur...
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Published in | Journal of the European Ceramic Society Vol. 24; no. 6; pp. 1295 - 1299 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
01.01.2004
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Online Access | Get full text |
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Summary: | The influence of Sb ions, introduced as dopants in alpha-Bi2O3, on the structure of the oxide polymorph forms obtained at high temperature is studied. The structural changes of alpha-Bi2O3 for compositions in the system Bi2-xSbxO3 (x = 0, 0.05, 0.1, 0.15, 0.2), at different heat treatment temperatures were analysed by thermal analysis, powder XRD and IR transmission spectroscopy. The structure tended to change to a higher symmetry (monoclinic to tetragonal to cubic) as the antimony content increased and the temperature reached 850 C. The presence of Sb2O3 in the Bi2O3 oxide system promotes an oxygen release from the oxide and enlarges the stabilisation domain of the delta-phase. 11 refs. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0955-2219 |
DOI: | 10.1016/S0955-2219(03)00506-5 |