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Influence of the Structure of the Glasses from the BaO–La2O3–B2O3–ZrO2–TiO2–SiO2–Nb2O5 System on Their Thermal Expansion and Technological Characteristics

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Abstract

The results of studying the crystallization ability and the thermal linear expansion coefficient of glasses of the BaO–La2O3-B2O3–ZrO2–TiO2–SiO2–Nb2O5 system, intended for the production of a light-guiding core of a rigid optical fiber, are presented. Transmission electron microscopy has established the nature of silencing of the studied glasses during production. With the help of X-ray phase analysis, the main crystalline phases that precipitate during heat treatment of glass samples were established. The compositions of glasses characterized by a minimum tendency to crystallization are determined. The effect of the chemical composition of glasses on their structure was established by infrared spectroscopy.

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Funding

The research was carried out with the support of the Ministry of Education of the Republic of Belarus as part of task 1.4 of the SPNI “Chemical Processes, Reagents and Technologies, Bioregulators and Bioorgchemistry” of the subprogram “Chemical Technologies, Processes and Reagents” for 2021–2025.

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  1. Belarusian State Technological University, 220006, Minsk, Republic of Belarus

    M. V. Dyadenko, I. A. Levitskii & A. G. Sidorevich

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  1. M. V. Dyadenko
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  2. I. A. Levitskii
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  3. A. G. Sidorevich
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Correspondence to M. V. Dyadenko or I. A. Levitskii.

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The authors declare that they have no conflicts of interest.

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Based on the Report at the Third Russian Conference with International Participation “Glass: Science and Practice” GlasSP2021 (St. Petersburg, September 13–17, 2021)

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Dyadenko, M.V., Levitskii, I.A. & Sidorevich, A.G. Influence of the Structure of the Glasses from the BaO–La2O3–B2O3–ZrO2–TiO2–SiO2–Nb2O5 System on Their Thermal Expansion and Technological Characteristics. Glass Phys Chem 48, 341–350 (2022). https://doi.org/10.1134/S1087659622600296

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