Synthesis of Nanocrystalline Materials Based on the Bi2O3-TiO2 System
- Authors: Lomanova N.A.1, Tomkovich M.V.1, Osipov A.V.2, Ugolkov V.L.2
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Affiliations:
- Ioffe Institute
- Grebenshchikov Institute of Silicates Chemistry
- Issue: Vol 89, No 10 (2019)
- Pages: 2075-2081
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/223119
- DOI: https://doi.org/10.1134/S1070363219100141
- ID: 223119
Cite item
Abstract
Nanocrystalline bismuth titanates Bi2Ti4O11 (115±5 nm), Bi4Ti3O12 (60±5 nm), Bi2Ti2O7 (105±5 nm), Bi8TiO14 (82±5 nm), and Bi12TiO20 (102±5 nm) were synthesized by heat treatment of the coprecipitated composition. It was revealed that the crystallite sizes of the target materials are determined by the minimum crystallite size of the first phase to crystallize in the reaction system. The process parameters of the synthesis and of the sintering of the materials were found to depend on the melting point of the surface (nonautonomous) phase. It was shown that the formation of the materials is mainly influenced by the kinetic factor, and the influence of the structural features is less pronounced.
Keywords
About the authors
N. A. Lomanova
Ioffe Institute
Author for correspondence.
Email: natus@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021
M. V. Tomkovich
Ioffe Institute
Email: natus@mail.ioffe.ru
Russian Federation, ul. Politekhnicheskaya 26, St. Petersburg, 194021
A. V. Osipov
Grebenshchikov Institute of Silicates Chemistry
Email: natus@mail.ioffe.ru
Russian Federation, St. Petersburg
V. L. Ugolkov
Grebenshchikov Institute of Silicates Chemistry
Email: natus@mail.ioffe.ru
Russian Federation, St. Petersburg