Dielectric and piezoelectric properties of textured Sr0.53Ba0.47Nb2O6 ceramics prepared by templated grain growth

Cihangir Duran, Susan Trolier-McKinstry, Gary L. Messing

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Fiber textured Sr0.53Ba0.47Nb2O6 ceramics were reactively sintered to ≥95% of the theoretical density from a mixture of SrNb2O6 and BaNb2O6 powders. Texture in <001> was obtained by templated grain growth on <001>-oriented acicular KSr2Nb5O15 template particles. The most highly textured ceramics had a peak dielectric constant of 23, 600 (at Tc = 128°C), a remanent polarization (Pr) of 20.3 μC/cm2, a saturation polarization (Psat) of 24 μC/cm2 (69-96% of single crystal), and a piezoelectric charge coefficient (d33) of 84 pC/N (76-93% of single crystal). A model, correlating polarization with grain orientation, predicts that Pr increases sharply when a percolating grain network forms to transfer charge between elongated grains.

Original languageEnglish (US)
Pages (from-to)2399-2409
Number of pages11
JournalJournal of Materials Research
Issue number9
StatePublished - Sep 2002

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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