Synthesis and Dielectric Properties of Solution Sol‐Gel‐Derived 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 Ceramics

Palaniappan Ravindranathan, Sridhar Komarneni, Amar S. Bhalla, Rustum Roy

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Abstract

A solution sol‐gel method has been developed to prepare 0.9Pb(Mg1/3Nb2/3)O3‐0.1PbTiO3 (0.9PMN‐0.1PT) ceramics. During the processing the gel first converted to cubic pyrochlore phase at a calcination temperature of 600°C followed by the formation of pure perovskite phase at 775°C. The ceramics sintered at 1250°C for 4 h showed ≈98% of the theoretical density. The room‐temperature dielectric constant of the pellets sintered at 1250°C showed a maximum value of 25035 at 1 kHz. Sintering studies at different temperatures revealed that the dielectric constant increased with increasing grain size in these ceramics.

Original languageEnglish (US)
Pages (from-to)2996-2999
Number of pages4
JournalJournal of the American Ceramic Society
Volume74
Issue number12
DOIs
StatePublished - Dec 1991

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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