Effect of CuO on the sintering temperature and piezoelectric properties of MnO2-doped 0.75Pb(Zr0.47Ti0.53)O 3-0.25Pb(Zn1/3Nb2/3)O3 ceramics

Chan Hee Nam, Hwi Yeol Park, In Tae Seo, Jae Hong Choi, Sahn Nahm, Hyeung Gyu Lee

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The sintering temperature of 0.75Pb(Zr0.47Ti0.53) O3-0.25Pb(Zn1/3Nb2/3)O3 ceramics containing 1.5 mol% MnO2 was decreased from 930 to 850 °C with the addition of CuO. The CuO reacted with the PbO and formed a liquid phase during the sintering, which assisted the densification of the specimens. Most of the Cu2+ ions existed in the CuO second phase, thereby preventing any possible hardening effect from the Cu2+ ions. Variations of the kp, Qm, ε3 T0 and d33 values with CuO were similar to that of the relative density. The specimen containing 0.5 mol% CuO sintered at 850 °C showed the good piezoelectric properties of kp = 0.5, Qm = 1000, ε3 T0 = 1750 and d33 = 300 pC/N.

Original languageEnglish
Pages (from-to)3686-3689
Number of pages4
JournalJournal of Alloys and Compounds
Issue number8
Publication statusPublished - 2011 Feb 24



  • High power transformer
  • Low temperature sintering
  • Microstructure
  • Piezoelectric
  • PZT

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

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