6533b7d4fe1ef96bd1261d53

RESEARCH PRODUCT

Dielectric Dispersion and Ion Conductivity in High-Pressure LixNaw1-xNbO3Solid Solutions

K. BormanisV. V. EfremovM. N. PalatnikovN. V. Sidorov

subject

Materials scienceAnalytical chemistryDielectricConductivityCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic MaterialsThermal conductivityvisual_artvisual_art.visual_art_mediumFast ion conductorIonic conductivityCeramicSolid solution

description

Thermal behaviour and dispersion of dielectric permeability and thermal behaviour of conductivity measured in ferroelectric ceramic solid solutions of Li x Na 1−x NbO 3 (x = 0.17, 0.25) synthesized at high pressure and possessing extended region of homogeneity are reported. The Li x Na 1−x NbO 3 (x = 0.17, 0.25) solid solutions of perovskite structure are found to be super-ionic conductors at rather low temperatures O ≥ 400 K. Dielectric dispersion and anomalous behaviour of dielectric permeability are observed in the thermal range of super-ionic conductivity corresponding to structural transformations in the high-pressure solid solutions.

https://doi.org/10.1080/00150190903001755