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Radio-transparent ceramic materials of spodumene-cordierite composition

Radio-transparent ceramic materials of spodumene-cordierite composition

The paper deals with the processes of obtaining radio-transparent ceramic materials with a complex of high physical and chemical indices. Directional regulation of the ceramics' microstructure and phase composition was carried out by introducing Li₂O-Al₂O₃-B₂O₃-SiO² (LABS) glass into main matri...

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Main Authors: Zaichuk, A.V., Amelina, A.A., Karasik, Y.V., Khomenko, Y.S., Lementareva, V.A., Saltykov, D.Yu.
Format: Article
Language:English
Published: НТК «Інститут монокристалів» НАН України 2019
Series:Functional Materials
Subjects:
Technology
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/157413
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spelling irk-123456789-1574132019-06-21T01:25:02Z Radio-transparent ceramic materials of spodumene-cordierite composition Zaichuk, A.V. Amelina, A.A. Karasik, Y.V. Khomenko, Y.S. Lementareva, V.A. Saltykov, D.Yu. Technology The paper deals with the processes of obtaining radio-transparent ceramic materials with a complex of high physical and chemical indices. Directional regulation of the ceramics' microstructure and phase composition was carried out by introducing Li₂O-Al₂O₃-B₂O₃-SiO² (LABS) glass into main matrix that consisted of cordierite phase. Optimal composition and temperature conditions for firing of the developed spodumene-cordierite ceramics were established. It is shown that the introduction of LABS glass into experimental compositions contributes to significant intensification of the process of formation of α-cordierite crystalline phase, as well as sintering of ceramic materials obtained. Besides, the product of crystallization of parent glass is β-spodumene which promotes the reduction of CLTE of the obtained ceramic material, on average, to (12.4-17.8)·10⁻⁷ deg⁻¹. The highest indices of mechanical compressive strength (165.8-202.6 MPa) and thermal stability (not lower than 1050 °C) are achieved at the most rational content of LABS glass is 10-20 wt. %. Under this composition the water absorption is within 0.28-0.34 %, apparent density 2.16-2.18 g/cm³, CLTE (16.6-17.8)·10⁻⁷ deg⁻¹. Studies of electrophysical properties of the developed material at the frequency of 10¹⁰ Hz showed that the level of the dielectric constant (ε = 3.8) and dielectric losses (tg δ = 0.0014) spodumene-cordierite ceramics synthesized at reduced temperature of 1300-1350 °C are fully complied with the requirements to the modern radio-transparent materials. 2019 Article Radio-transparent ceramic materials of spodumene-cordierite composition / A.V. Zaichuk, A.A. Amelina, Y.V. Karasik, Y.S. Khomenko, V.A. Lementareva, D.Yu. Saltykov // Functional Materials. — 2019. — Т. 26, № 1. — С. 174-181. — Бібліогр.: 13 назв. — англ. 1027-5495 DOI:https://doi.org/10.15407/fm26.01.174 http://dspace.nbuv.gov.ua/handle/123456789/157413 en Functional Materials НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Technology
Technology
spellingShingle Technology
Technology
Zaichuk, A.V.
Amelina, A.A.
Karasik, Y.V.
Khomenko, Y.S.
Lementareva, V.A.
Saltykov, D.Yu.
Radio-transparent ceramic materials of spodumene-cordierite composition
Functional Materials
description The paper deals with the processes of obtaining radio-transparent ceramic materials with a complex of high physical and chemical indices. Directional regulation of the ceramics' microstructure and phase composition was carried out by introducing Li₂O-Al₂O₃-B₂O₃-SiO² (LABS) glass into main matrix that consisted of cordierite phase. Optimal composition and temperature conditions for firing of the developed spodumene-cordierite ceramics were established. It is shown that the introduction of LABS glass into experimental compositions contributes to significant intensification of the process of formation of α-cordierite crystalline phase, as well as sintering of ceramic materials obtained. Besides, the product of crystallization of parent glass is β-spodumene which promotes the reduction of CLTE of the obtained ceramic material, on average, to (12.4-17.8)·10⁻⁷ deg⁻¹. The highest indices of mechanical compressive strength (165.8-202.6 MPa) and thermal stability (not lower than 1050 °C) are achieved at the most rational content of LABS glass is 10-20 wt. %. Under this composition the water absorption is within 0.28-0.34 %, apparent density 2.16-2.18 g/cm³, CLTE (16.6-17.8)·10⁻⁷ deg⁻¹. Studies of electrophysical properties of the developed material at the frequency of 10¹⁰ Hz showed that the level of the dielectric constant (ε = 3.8) and dielectric losses (tg δ = 0.0014) spodumene-cordierite ceramics synthesized at reduced temperature of 1300-1350 °C are fully complied with the requirements to the modern radio-transparent materials.
format Article
author Zaichuk, A.V.
Amelina, A.A.
Karasik, Y.V.
Khomenko, Y.S.
Lementareva, V.A.
Saltykov, D.Yu.
author_facet Zaichuk, A.V.
Amelina, A.A.
Karasik, Y.V.
Khomenko, Y.S.
Lementareva, V.A.
Saltykov, D.Yu.
author_sort Zaichuk, A.V.
title Radio-transparent ceramic materials of spodumene-cordierite composition
title_short Radio-transparent ceramic materials of spodumene-cordierite composition
title_full Radio-transparent ceramic materials of spodumene-cordierite composition
title_fullStr Radio-transparent ceramic materials of spodumene-cordierite composition
title_full_unstemmed Radio-transparent ceramic materials of spodumene-cordierite composition
title_sort radio-transparent ceramic materials of spodumene-cordierite composition
publisher НТК «Інститут монокристалів» НАН України
publishDate 2019
topic_facet Technology
url http://dspace.nbuv.gov.ua/handle/123456789/157413
citation_txt Radio-transparent ceramic materials of spodumene-cordierite composition / A.V. Zaichuk, A.A. Amelina, Y.V. Karasik, Y.S. Khomenko, V.A. Lementareva, D.Yu. Saltykov // Functional Materials. — 2019. — Т. 26, № 1. — С. 174-181. — Бібліогр.: 13 назв. — англ.
series Functional Materials
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AT amelinaaa radiotransparentceramicmaterialsofspodumenecordieritecomposition
AT karasikyv radiotransparentceramicmaterialsofspodumenecordieritecomposition
AT khomenkoys radiotransparentceramicmaterialsofspodumenecordieritecomposition
AT lementarevava radiotransparentceramicmaterialsofspodumenecordieritecomposition
AT saltykovdyu radiotransparentceramicmaterialsofspodumenecordieritecomposition
first_indexed 2023-05-20T17:52:35Z
last_indexed 2023-05-20T17:52:35Z
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