Low temperature sintering and properties of piezoelectric ceramics PSNT-Mn with LiBiO2 addition

Shujun Zhang, Ru Xia, Thomas R. Shrout

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Abstract

Low temperature sintering of Pb(Sc1/2Nb1/2)O3-PbTiO3 (PSNT) piezoelectric materials was studied with the use of LiBiO2 (LBiO) as a sintering aids. The sintering aids improved the sinterability of manganese modified PSNT ceramics due to the effect of LBiO liquid phase, resulting in a reduction of the firing temperature by ∼350-400 °C. The microstructure of the sintered materials, together with the dielectric and piezoelectric properties were investigated. The 1 wt.% LBiO-added PSNT-Mn ceramics sintered at 950 °C for 2 h exhibit piezoelectric coefficient of 340 pC/N with a Curie temperature around 263 °C, the electromechanical coupling factor kp, dielectric constant K33T and mechanical quality factor Q were found to be 61.5%, 1300 and 800, respectively, demonstrating that it is a promising material for multilayer piezoelectric actuator and transformer applications.

Original languageEnglish (US)
Pages (from-to)131-134
Number of pages4
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume129
Issue number1-3
DOIs
StatePublished - Apr 15 2006

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All Science Journal Classification (ASJC) codes

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

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