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Effect of CuO and MnO2 on sintering temperature, microstructure, and piezoelectric properties of 0.95(K0.5Na0.5)NbO3-0.05BaTiO3 ceramics

  • Cheol Woo Ahn
  • , Sahn Nahm
  • , Makarand Karmarkar
  • , Dwight Viehland
  • , Dong Heon Kang
  • , Kyoo Sik Bae
  • , Shashank Priya

Research output: Contribution to journalArticlepeer-review

Abstract

In this letter we report the effect of CuO and MnO2 additives on the sintering behavior of 0.95(Na0.5K0.5)NbO3-0.05BaTiO3 ceramics. It was found that the composition corresponding to 0.95(Na0.5K0.5)NbO3-0.05BaTiO3 + 2.0 mol% CuO + 0.5 mol% MnO2, sintered at 950 °C for 10 h, exhibited excellent piezoelectric properties corresponding to: kp = 0.41, d33 = 248 pC/N, Qm = 305, ε3T0 = 1258, and Tc = 280 °C. These results indicate the prominence of this composition in lead-free systems.

Original languageEnglish (US)
Pages (from-to)3594-3596
Number of pages3
JournalMaterials Letters
Volume62
Issue number20
DOIs
StatePublished - Jul 31 2008
Externally publishedYes

Bibliographical note

Funding Information:
The authors (C. Ahn, M. Karmarkar, D. Viehland, and S. Priya) gratefully acknowledge the financial support from office of Basic Energy Science, Department of Energy.

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