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Oxygen Concentration Cell Measurements of Ionic Transport Numbers in PZT Ferroelectrics
Author(s) -
EZIS A.,
BURT J. G.,
KRAKOWSKI R. A.
Publication year - 1970
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.1151-2916.1970.tb16005.x
Subject(s) - lead zirconate titanate , materials science , pyroelectricity , ionic conductivity , ionic bonding , ceramic , perovskite (structure) , ferroelectricity , thermal conduction , oxygen , piezoelectricity , concentration cell , zirconate , ferroelectric ceramics , atmospheric temperature range , electrochemistry , analytical chemistry (journal) , mineralogy , titanate , composite material , electrode , ion , dielectric , thermodynamics , chemistry , crystallography , optoelectronics , electrolyte , physics , organic chemistry , chromatography
Several ceramic oxides of the perovskite structure exhibit ferroelectric properties and therefore are characterized by pyroelectric and piezoelectric behavior. One such ceramic is the solid solution lead zirconate‐lead titanate (PZT). To determine the range of ionic charge conduction in PZT, experiments were performed using an electrochemical oxidation cell. Results indicate that the ionic transport number of Pb(Zr 1− x , Ti x )O 3 decreases monotonically with increasing values of x over the range 0.05< x <0.35. Electronic conduction becomes dominant above x =0.40. These results are relatively independent of temperature from 425° to 650°C.