Effect of ZnO addition on the sintering and electrical properties of (Mn,W)-doped PZT-PMS-PZN ceramics

Hui Li, Zupei Yang, Lingling Wei, Yunfei Chang

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The effect of ZnO addition on the phase structure, microstructure and dielectric and piezoelectric properties of 0.2 wt.% MnO2 and 0.6 wt.% WO3-doped Pb(Zr0.52Ti0.48)O3-Pb(Mn1/3Sb2/3)O3-Pb(Zn1/3Nb2/3)O3 (PZT-PMS-PZN) ceramics was investigated. X-ray diffraction shows that the phase structure of ceramics is transformed from rhombohedral to tetragonal with the increasing of ZnO addition. The bulk density significantly increases when ZnO is added and then it slightly decreases for ZnO addition above 0.2 wt.%. SEM micrographs show the grains of ceramics are uniform and well developed by adding 0.1 wt.% ZnO. The Curie temperature (Tc) of 270 °C is obtained at the 0.1 wt.% ZnO addition. Mechanical quality factor (Qm), electromechanical coupling factor (Kp) and piezoelectric constant (d33) increase firstly, and then decrease with the increasing of ZnO addition, while dielectric loss tan δ drops all the time. The Qm, Kp, d33, tan δ and Tc of the ceramics show the optimum values of 1899, 0.55, 300 (pC/N), 0.0063 and 270 °C, respectively, at the lower sintering temperature of 1120 °C and with 0.1 wt.% ZnO addition.

Original languageEnglish (US)
Pages (from-to)638-643
Number of pages6
JournalMaterials Research Bulletin
Issue number3
StatePublished - Mar 5 2009

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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