Polymorphism of BaTiO3 Acceptor Doped with Mn3+, Fe3+, and Ti3+ |
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| Authors: | Marta Prades Nahum Masó Héctor Beltrán Eloisa Cordoncillo Anthony R West |
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| Affiliation: | Departamento de Química Inorgánica y Orgánica, Universidad Jaume I, 12071 Castellón, Spain;
Department of Engineering Materials, The University of Sheffield, Sheffield S1 3JD, U.K. |
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| Abstract: | The effect of Mn doping on the cubic to hexagonal phase transition temperature in BaTiO3 has been determined by quenching samples with different Mn contents from a range of temperatures. Under conditions of equilibrating samples in air over the range 1000°–1400°C, cubic solid solutions BaTi1? x Mn x O3?δ form over the range 0≤ x ≤0.015(5), whereas hexagonal solid solutions form for x ≥0.02, depending on the temperature. The results are compared with those on doping BaTiO3 with Fe3+ and observations made concerning acceptor doping with Ti3+. |
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