Study of phase transformation dynamics, structural and optical properties of ferroelectric SrTiO3 ceramics
Karakozov B.K. Kozlovskiy A.L. Janseitov D.M. Zdorovets M.V.
November 2021Elsevier B.V.
Optical Materials
2021#121
In this work, ferroelectrics of the SrTiO3 type were obtained using solid-phase synthesis method and subsequent thermal annealing. Using the X-ray diffraction method, the dynamics of phase transformations of the TiO2/Sr2Ti6O13/Sr3Ti2O7 → TiO2/Sr2Ti6O13/Sr3Ti2O7/SrTiO3 → SrTiO3/Ti3O5 type was established. According to the data obtained, it was found that thermal annealing in the range of 200–1100 °C allows obtaining both complex multiphase ceramics and SrTiO3 ceramics with a perovskite structure. As a result of determination of the optical properties, it was found that an increase in the structural ordering degree and the formation of a stable SrTiO3 phase, a broad induced absorption band appears in the region of 3.0–3.3 eV, with a maximum of 3.14 eV. During the determination of ferroelectric characteristics, it was found that the formation of a stable SrTiO3 phase in ceramics structure leads to a sharp increase in dielectric constant and a decrease in Curie-Weiss temperature from 125-130 °C to 105–110 °C.
Ferroelectrics , Optical transmission , Perovskite , Phase transformations , SrTiO3
Text of the article Перейти на текст статьи
The Institute of Nuclear Physics of Republic of Kazakhstan, Almaty, Kazakhstan
L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Ural Federal University, Yekaterinburg, Russian Federation
The Institute of Nuclear Physics of Republic of Kazakhstan
L.N. Gumilyov Eurasian National University
Al-Farabi Kazakh National University
Ural Federal University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026