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Effect of CuO and MnO2 on sintering temperature, microstructure, and piezoelectric properties of 0.95(K0.5Na0.5)NbO3-0.05BaTiO(3) ceramics
- Authors
- Ahn, Cheol-Woo; Nahm, Sahn; Karmarkar, Makarand; Viehland, Dwight; Kang, Dong-Heon; Bae, Kyoo-Sik; Priya, Shashank
- Issue Date
- 31-7월-2008
- Publisher
- ELSEVIER
- Citation
- MATERIALS LETTERS, v.62, no.20, pp.3594 - 3596
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 62
- Number
- 20
- Start Page
- 3594
- End Page
- 3596
- ISSN
- 0167-577X
- Abstract
- In this letter we report the effect of CuO and MnO2 additives on the sintering behavior of 0.95(Na0.5K0.5) NbO3-0.05BaTiO(3) ceramics. It was found that the composition corresponding to 0.95(Na0.5K0.5)NbO3-0.05BaTiO(3)+2.0 mol% CuO+0.5 mol% MnO2, sintered at 950 degrees C for 10 h, exhibited excellent piezoelectric properties corresponding to: k(p)=0.41, d(33)=248 pC/N, Q(m)=305, epsilon(T)(3)/epsilon(0)=1258, and T-c=280 degrees C. These results indicate the prominence of this composition in lead-free systems. (C) 2008 Elsevier B.V. All rights reserved.
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