Journal
SMALL
Volume 3, Issue 11, Pages 1906-1911Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200700284
Keywords
ceramics; ferroelectrics; nanostructures; perovskites; spark-plasma sintering
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The relaxor-type behavior, electrical polarization buildup, and switching in 0.92Pb(Zn1/3Nb2/3)O-3-0.08PbTiO(3) nanostructured ceramics with a grain size of approximate to 20 nm is reported for the first time. This composition presents the highest-known piezoelectric coefficients, yet phase stability is an issue. Ceramics can only be obtained by the combination of mechano-synthesis and spark-plasma sintering. The results raise the possibility of using nanoscale, perovskite-relaxor-based morphotropic-phase-boundary materials for sensing and actuation in nanoelectromechanical systems.
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