SYNTHESIS AND CHARACTERIZATION OF OPTICAL, STRENGTH AND SHIELDING CHARACTERISTICS OF 0.6TeO<sub>2</sub>-0.25BaO-0.15ZnO-Reference-Cited by-同舟云学术

SYNTHESIS AND CHARACTERIZATION OF OPTICAL, STRENGTH AND SHIELDING CHARACTERISTICS OF 0.6TeO<sub>2</sub>-0.25BaO-0.15ZnO

Published:2023-07-05 Issue:2 Volume: Page:9-19
ISSN:1729-7885
Container-title:NNC RK Bulletin
language:
Short-container-title:jour

Author:

Kozlovskiy A. L.¹,Tulegenova M.²,Shlimas D. I.¹

Affiliation:

1. L.N. Gumilyov Eurasian National University; RSE “Institute of Nuclear Physics” ME RK

2. L.N. Gumilyov Eurasian National University

Abstract

This study presents the results of studying the optical, strength, dielectric and screening characteristics of 0.6TeO20.25BaO-0.15ZnO glasses. The method of mechanochemical grinding of the initial oxide components followed by thermal sintering in order to obtain vitreous samples with an amorphous structure was chosen as the preparation method. To characterize the obtained samples, the methods of scanning electron microscopy, energy dispersive analysis, X-ray diffraction, impedance and optical spectroscopy were used, and the strength properties were determined using the indentation method. In the course of the studies of the structural features and phase composition, it was found that the synthesized glasses have an amorphous nature, with a small content of inclusions in the form of BaZnTe2O7 grains. At the same time, the analysis of the mapping of elements in the glass composition showed an isotropic distribution of all components in the glass composition and the complete absence of any impurities. When determining the optical properties of the synthesized glasses, it was found that the transmission spectra contain a wide absorption band in the visible light region, as well as three spectral absorption bands characteristic of oxygen vacancies and interstitial oxygen atoms. According to the data of strength characteristics, it was found that the synthesized glasses have sufficient hardness and resistance to external influences, and the nature of crack formation is typical for semi-disk cracks. An analysis of the shielding characteristics of the synthesized glasses showed high efficiency in shielding low-energy gamma rays.

Publisher

Republican State Enterprise "National Nuclear Center of the Republic of Kazakhstan"

Subject

General Medicine

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