Ferroelectric and photostrictive properties of fine-grained PLZT ceramics derived from mechanical alloying

Kenta Takagi, Shoko Kikuchi, Jing Feng Li, Hiroshi Okamura, Ryuzo Watanabe, Akira Kawasaki

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

Single-phase lead lanthanum zirconate titanate (PLZT) solid solution powder was synthesized from the constituent oxides at ambient temperature through a mechanical alloying (MA) process and was then densified to fine-grained ceramics by sintering and hot-pressing. The anomalous photovoltaic effect (APV) and photoinduced strain of the resultant PLZT ceram- ics were investigated and analyzed in association with the influence of grain size. It was found that a photoinduced voltage up to 6000 V·cm-1 can be obtained as the grain size is reduced to 0.42 μm. This is extremely high and about three times that achievable in normal micrometer-grained PLZT ceramics. The maximum photoinduced strain of the PLZT ceramics with an average grain diameter of 0.54 μm reached 0.01%, which is equivalent to electric-field-induced strain of common piezoelectric materials.

Original languageEnglish
Pages (from-to)1477-1482
Number of pages6
JournalJournal of the American Ceramic Society
Volume87
Issue number8
DOIs
Publication statusPublished - 2004 Aug

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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