Dielectric and Electromechanical Properties of (Li, Na)NbO3 Ceramics |
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Authors: | R. M. HENSON R. R. ZEYFANG K. V. KIEHL |
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Affiliation: | AEG-Telefunken Forschungsinstitut, Frankfurt am Main, Federal Republic of Germany |
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Abstract: | Permittivity, dielectric loss tangent, radial coupling coefficient, and radial frequency constant have been measured as a function of composition for pressure-sintered Li.rNa1-xNbO3 in the range 0.015≤x≤0.15. An anomaly in each of these properties when plotted as a function of composition is associated with a structural transition between 2 ferroelectric phases; this transition lies near room temperature for compositions where x∼0.12. Compositions near this phase boundary exhibit room-temperature properties which are of interest for high-frequency filter applications. |
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