Investigations of LiNb1−xTaxO3 Nanopowders Obtained with Mechanochemical Method

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