Processing and Characterization of Sol-Gel Derived Modified PbTiO3 for Ferroelectric Composite Applications

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Abstract

Powders of (Pb0.8Ca0.2)(Ti0.99Mn0.01)O 3 have been prepared by sol-gel processing. A tetragonal phase is formed after heat treatment at as low as 800°C. The tetragonality was found to be 1.053 ± 0.005 and Curie temperature 315°C. Composite films with 0-3 connectivity were prepared from 800°C heat treated powders and P(VDF-TrFE) by the solvent casting technique. Composites poled at 20 MV/m, exhibited a pyroelectric coefficient of 17.4 μC/m2K and a pyroelectric figure of merit (FOMp = p/ε) of 0.51 μC/m2K.

Original languageEnglish
Pages (from-to)721-723
Number of pages3
JournalJournal Of Sol-Gel Science And Technology
Volume8
Issue number1-3
DOIs
Publication statusPublished - 1997
Event8th International Workshop on Glasses and Ceramics from Gels - Algarve, Portugal
Duration: 18 Sep 199522 Sep 1995

Keywords

  • Composites
  • Electroactive material
  • Ferroelectric
  • Lead titanate
  • Sol-gel

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