Investigations of LiNb1−xTaxO3 Nanopowders Obtained with Mechanochemical Method

Author:

Vasylechko Leonid,Sydorchuk Volodymyr,Lakhnik Andrey,Suhak Yuriy,Wlodarczyk DamianORCID,Hurskyy Stepan,Yakhnevych Uliana,Zhydachevskyy YaroslavORCID,Sugak Dmytro,Syvorotka Ihor I.,Solskii Ivan,Buryy Oleh,Suchocki Andrzej,Fritze Holger

Abstract

Nanocrystalline compounds LiNb1−xTaxO3 of various compositions (x = 0, 0.25, 0.5, 0.75, 1) were synthesized by high-energy ball milling of the initial materials (Li2CO3, Nb2O5, Ta2O5) and subsequent high-temperature annealing of the resulting powders. Data on the phase composition of the nanopowders were obtained by X-ray diffraction methods, and the dependence of the structural parameters of LiNb1−xTaxO3 compounds on the value of x was established. As a result of the experiments, the optimal parameters of the milling and annealing runs were determined, which made it possible to obtain single-phase compounds. The Raman scattering spectra of LiNb1−xTaxO3 compounds (x = 0, 0.25, 0.5, 0.75, 1) have been investigated. Preliminary experiments have been carried out to study the temperature dependences of their electrical conductivity.

Funder

Bundesministerium für Bildung und Forschung

Ministry of Education and Science of Ukraine

Deutsche Forschungsgemeinschaft

Narodowe Centrum Nauki

Publisher

MDPI AG

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering

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