Processing of Pb(Zn 1/3 Nb 2/3 )O 3 ceramics at high pressures

P. Ravindranathan, V. Srikanth, Sridhar Komarneni, A. S. Bhalla

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23 Scopus citations

Abstract

Lead zinc niobate (PZN) with 1 mole% of BaTiO 3 (BT) and pure PZN, both of pyrochlore structure were synthesized by solid state and sol-gel routes respectively. The pyrochlore ceramics were subjected to high pressures (20-35 Kbars) to convert them to perovskite phases. About 80% of perovskite phase was formed from sol-gel derived PZN ceramics while only about 53% perovskite resulted from conventionally processed PZN with 1 mole% BaTiO 3 additive at 20 Kbar, 2 hr. A maximum dielectric constant value of 11200 was obtained at 1 kHz for the PZN ceramics processed with 20 Kbar pressure.

Original languageEnglish (US)
Pages (from-to)135-141
Number of pages7
JournalFerroelectrics
Volume188
Issue number1-4
DOIs
StatePublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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