Pressure‐induced ferroelectric to antiferroelectric phase transformation in porous PZT95/5 ceramics | Zendy

Zeng T. | Zendy; Dong X. L. | Zendy; He H. L. | Zendy; Chen X. F. | Zendy; Yao C. H. | Zendy

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Pressure‐induced ferroelectric to antiferroelectric phase transformation in porous PZT95/5 ceramics

Author(s) -

Zeng T.,

Dong X. L.,

He H. L.,

Chen X. F.,

Yao C. H.

Publication year - 2007

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200622550

Subject(s) - antiferroelectricity , materials science , porosity , ceramic , ferroelectricity , phase (matter) , hydrostatic pressure , ferroelectric ceramics , transformation (genetics) , composite material , mineralogy , thermodynamics , chemistry , dielectric , organic chemistry , biochemistry , physics , optoelectronics , gene

The hydrostatic pressure‐induced ferroelectric to antiferroelectric (FE–AFE) phase transformation of PZT95/5 ceramics was investigated as a function of porosity, pore shape and pore size. FE–AFE phase transformations were more diffuse and occurred at lower hydrostatic pressures with increasing porosity. The porous PZT95/5 ceramics with spherical pores exhibited higher transformation pressures than those with irregular pores. Moreover, FE–AFE phase transformations of porous PZT95/5 ceramics with polydisperse irregular pores were more diffuse than those of porous PZT95/5 ceramics with monodisperse irregular pores. The relation between pore structure and hydrostatic pressure‐induced FE–AFE transformation was established according to stress concentration theory. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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