Properties of aurivillius phases in the Bi4Ti3O12-BiFeO3 system |
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Authors: | N A Lomanova M I Morozov V L Ugolkov V V Gusarov |
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Affiliation: | (1) Grebenschikov Institute of Silicate Chemistry, Russian Academy of Sciences, ul. Odoevskogo 24/2, St. Petersburg, 199155, Russia |
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Abstract: | A number of new Bi m+1Fe m?3TiO3m+3 compounds with integer and fractional m values are identified in the Bi4Ti3O12-BiFeO3 system. All of the compounds are shown to have Aurivillius-type structures. The phase-transition and decomposition temperatures of the new and earlier known compounds of the Bi4Ti3O12-BiFeO3 system are determined. The linear thermal expansion coefficients of the synthesized compounds are evaluated using dilatometry, and their sintering onset temperatures are determined. |
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