PbTiO/sub 3/-BiFeO/sub 3/体系相图的研究

Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1994-08-07 DOI:10.1109/ISAF.1994.522317

P. Lu, M.M. Zhang, W. Xue, X.F. Wang, W. Huebner

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引用次数: 1

摘要

通过测量(Pb/sub 0.85/Sm/sub 0.10/)(Ti/sub 0.98/Mn/sub 0.02/)O/sub 3/-BiFeO/sub 3/体系的介电行为与温度的关系，结合室温XRD和d/sub 33/、k/sub t/和k/sub p/的测量，研究了体系的相图。当BiFeO/sub - 3/含量为/spl / ap/ 55mol %时，在正方相和菱形相之间存在着形态变化的相界。所研究的一些组合物具有适合换能器应用的机电性能。

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Investigations of the phase diagram of the PbTiO/sub 3/-BiFeO/sub 3/ system

The phase diagram of the (Pb/sub 0.85/Sm/sub 0.10/)(Ti/sub 0.98/Mn/sub 0.02/)O/sub 3/-BiFeO/sub 3/ system was studied by measuring the dielectric behavior as a function of temperature, coupled with room temperature XRD and measurements of d/sub 33/, k/sub t/ and k/sub p/. A morphotropic phase boundary exists for between the tetragonal and rhombohedral phases for a BiFeO/sub 3/ content of /spl ap/55 mole%. Some of the studied compositions exhibit electromechanical properties suitable for transducer applications.

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Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics

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