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A Comparative Study of the Structure and Properties of Sn‐Modified Lead Zirconate Titanate Ferroelectric and Antiferroelectric Ceramics
Author(s) -
He Hui,
Tan Xiaoli
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.01685.x
Subject(s) - materials science , ferroelectricity , raman spectroscopy , antiferroelectricity , zirconate , dielectric , ceramic , lead zirconate titanate , phase (matter) , crystal structure , piezoelectricity , mineralogy , composite material , titanate , crystallography , optoelectronics , chemistry , optics , physics , organic chemistry
Comparative studies of the structure and property of a ferroelectric Pb 0.99 Nb 0.02 [(Zr 0.57 Sn 0.43 ) 0.88 Ti 0.12 ] 0.98 O 3 and an antiferroelectric Pb 0.99 Nb 0.02 [(Zr 0.57 Sn 0.43 ) 0.94 Ti 0.06 ] 0.98 O 3 ceramic were conducted. In addition to their different crystal structures, domain morphologies, Raman modes, and dielectric/ferroelectric properties, distinct fracture behaviors under Vickers indentation are also clearly seen. We propose that the antiferroelectric‐to‐ferroelectric phase transformation may have been triggered during the fracture process. Supporting evidence for localized phase transformation was provided by an in situ Raman spectroscopic experiment.