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Piezoelectric Properties of Lead-Free (K0.5Na0.5)NbO3 Ceramics Added with ZnO and MnO2
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 Title & Authors
Piezoelectric Properties of Lead-Free (K0.5Na0.5)NbO3 Ceramics Added with ZnO and MnO2
Hong, Young Hwan; Park, Young-Seok; Jeong, Gwang-Hwi; Cho, Sung Youl; Lee, Jae-Shin;
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 Abstract
We investigated the sintering behavior and piezoelectric properties of lead-free ceramics co-doped with excess 0.01 mol ZnO and x mol , where x was varied from 0 to 0.03. Excess addition was found to retard the grain growth and densification during sintering. However, 0.005 mol addition improved the piezoelectric properties of 0.01 mol ZnO added ceramics. The planar mode piezoelectric coupling coefficient, electromechanical quality factor, and piezoelectric constant of 0.01 mol ZnO and 0.005 mol added specimen were 0.40, 304, and 214 pC/N, respectively.
 Keywords
Lead-free piezoelectric;Sintering aid;Ferroelectric;Potassium sodium niobate;
 Language
Korean
 Cited by
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