Fatigue mechanism of textured Pb(Mg1/3Nb2/3)O 3-PbTiO3 ceramics

Yongke Yan, Yuan Zhou, Shashaank Gupta, Shashank Priya

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18 Scopus citations

Abstract

Grain orientation, BaTiO3 heterogeneous template content, and electrode materials are expected to play an important role in controlling the polarization fatigue behavior of 001 textured Pb(Mg1/3Nb 2/3)O3-PbTiO3 ceramics. A comparative analysis with randomly oriented ceramics showed that 001 grain orientation/texture exhibits improved fatigue characteristics due to the reduced switching activation energy and high domain mobility. The hypothesis was validated from the systematic characterization of polarization - electric field behavior and domain wall density. The defect accumulation at the grain boundary and clamping effect arising from the presence of BaTiO3 heterogeneous template in the final microstructure was found to be the main cause for polarization degradation in textured ceramic.

Original languageEnglish (US)
Article number082906
JournalApplied Physics Letters
Volume103
Issue number8
DOIs
StatePublished - Aug 19 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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