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Structure and the Electrical Properties of Pb(Zr,Ti)O 3 – Zirconia Composites
Author(s) -
Benčan Andreja,
Malič Barbara,
Drnovšek Silvo,
Tellier Jenny,
Rojac Tadej,
Pavlič Jernej,
Kosec Marija,
Webber Kyle G.,
Rödel Jürgen,
Damjanovič Dragan
Publication year - 2012
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.1551-2916.2011.04803.x
Subject(s) - materials science , microstructure , composite material , piezoelectricity , tetragonal crystal system , cubic zirconia , dielectric , piezoelectric coefficient , grain size , yttria stabilized zirconia , hysteresis , phase (matter) , grain growth , ceramic , condensed matter physics , chemistry , physics , optoelectronics , organic chemistry
In this work, the effect of introducing tetragonal yttria‐stabilized zirconia ( TZ ) particles in soft [ Pb 0.98 Ba 0.01 ][( Zr 0.53 Ti 0.47 ) 0.98 Nb 0.02 ] O 3 ( PZT ) was investigated. Both microstructure and electrical properties of the PZT – x TZ ( x = 0, 2, 5, 10, 20 vol%) composites were studied and correlated. The addition of zirconia hinders the matrix grain growth, resulting in smaller grains. According to X‐ray diffraction analysis, zirconia containing composites have a higher rhombohedral‐to‐tetragonal phase ratio, in addition to lower dielectric and piezoelectric properties, in comparison to pure PZT . Electrical properties, in terms of strain– and polarization–electric field hysteresis curves, are presented and correlated with the observed phase compositions and microstructures. The extrinsic contribution to the piezoelectric properties in PZT and PZT –x TZ was studied by measuring the frequency and the stress field amplitude dependences of the piezoelectric d 33 coefficient.