Abstract

Temperature dependence of both elastic and electric properties for tetragonal (Li 0.06Na 0.47K 0.47)NbO 3 (LNKN-6) ceramics was investigated. The sample was prepared using a conventional solid-state reaction method. The elastic and piezoelectric properties were characterized using the resonance method as a function of temperature ranging from −50 to 50 °C. Elastic compliance S 31 E and S 33 E showed the maximum values at specific temperatures of 0 and −5 °C, respectively, while dielectric constant ε 11 T and ε 33 T showed anomalies at 20 and 7 °C, respectively. Such anisotropic properties were also observed in the measurement of the temperature dependence of the piezoelectric properties. Anisotropic temperature dependence of both the elastic and electric properties in LNKN-6 ceramics was evaluated.

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