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Effects of AgSbO3 on the Piezoelectric/Dielectric Properties and Phase Transition of Li2O Doped NKN Lead-Free Piezoelectric Ceramics

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Abstract:

The effect of AgSbO3 on the piezoelectric properties of (K0.5Na0.5)0.95Li0.05NbO3 was examined. The AgSbO3 doped KNLN samples sintered at 1050°C showed the maximum values of the sintering density of 4.56 g/cm3 compared to un-doped KNLN samples sintered at same temperature with 4.25 g/cm3. Moreover, the addition of AgSbO3 enhanced the piezoelectric and dielectric properties. Piezoelectric constant (d33), the planar electromechanical coupling factor (kp) and the relative dielectric permittivity (K33T) increased up to 230pC/N, 43.5%, 1080, respectively, with addition of AgSbO3.

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Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

801-804

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.801

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Online since:

July 2011

Authors:

Man Soon Yoon, Neamul Hayet Khansur, Woong Jae Lee, Young Geun Lee, Soon Chul Ur

Keywords:

Dielectric, Doped AgSbO3, KNN, Piezoelectric

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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