Synthesis and properties of Na1–xKxNbO3-based solid solutions in the CuNb2O6–NaNbO3–KNbO3 system


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(1–xz)NaNbO3 · xKNbO3 · zCuNb2O6 (x = 0.05–0.50, z = 0.025−0.050) ceramics have been prepared by solid-state reactions followed by sintering using standard ceramic processing. Phase relations in a portion of the NaNbO3–KNbO3–CuNb2O6 system have been studied for the first time, and property–structure–composition relationships have been established for solid solutions in this system. The effect of KNbO3 content on the main electrical and physical parameters of the solid solutions has been shown to correlate with the position of the morphotropic phase boundaries in this system and the observed structural anomalies. The solid solutions have been demonstrated to be potentially attractive for use in ultrasonic devices.

Sobre autores

M. Talanov

Research Institute of Physics

Autor responsável pela correspondência
Email: mvtalanov@sfedu.ru
Rússia, pr. Stachki 194, Rostov-on-Don, 344090

L. Shilkina

Research Institute of Physics

Email: mvtalanov@sfedu.ru
Rússia, pr. Stachki 194, Rostov-on-Don, 344090

L. Reznichenko

Research Institute of Physics

Email: mvtalanov@sfedu.ru
Rússia, pr. Stachki 194, Rostov-on-Don, 344090

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