Formation of Stable Lithium-Containing Ceramics Using Solid-Phase Synthesis Method

Today, one of the most promising materials for a wide range of practical applications is lithium-containing ceramics based on Li2TiO3. At the same time, despite the high potential of their practical application, a number of questions remains related to the methods of their preparation, as well as the formation of a stable crystal structure and a pure-phase composition. To solve these issues, this paper proposes a method for obtaining stable Li2TiO3 ceramics, which is based on solid-phase synthesis combined with the high-temperature sintering of ceramics. During the studies carried out using X-ray diffraction methods, temperature dependences of phase transformations of the TiO2/Li2Ti6O13 & RARR; Li2TiO3 type were determined, according to which, at temperatures above 800 & DEG;C, the formation of a stable Li2TiO3 phase characterized by a high structural ordering degree of 89-91% is observed. The dependence of changes in structural, optical and ferroelectric characteristics on the conditions of synthesis and phase composition of ceramics was also determined.

Automated summary

This paper introduces a method for obtaining stable Li2TiO3 ceramics through solid-phase synthesis and high-temperature sintering, and studies the temperature dependence of phase transformations and changes in structural, optical, and ferroelectric characteristics using X-ray diffraction methods.