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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| Published in: | Functional Materials |
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| Date: | 2019 |
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| Format: | Article |
| Language: | English |
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НТК «Інститут монокристалів» НАН України
2019
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/157413 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | 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. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862643460140433408 |
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| 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. |
| 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. |
| collection | DSpace DC |
| container_title | 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.
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| first_indexed | 2025-12-01T08:11:48Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-157413 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1027-5495 |
| language | English |
| last_indexed | 2025-12-01T08:11:48Z |
| publishDate | 2019 |
| publisher | НТК «Інститут монокристалів» НАН України |
| record_format | dspace |
| spelling | Zaichuk, A.V. Amelina, A.A. Karasik, Y.V. Khomenko, Y.S. Lementareva, V.A. Saltykov, D.Yu. 2019-06-20T03:25:02Z 2019-06-20T03:25:02Z 2019 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 https://nasplib.isofts.kiev.ua/handle/123456789/157413 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. en НТК «Інститут монокристалів» НАН України Functional Materials Technology Radio-transparent ceramic materials of spodumene-cordierite composition Article published earlier |
| spellingShingle | 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 |
| title | 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_short | Radio-transparent ceramic materials of spodumene-cordierite composition |
| title_sort | radio-transparent ceramic materials of spodumene-cordierite composition |
| topic | Technology |
| topic_facet | Technology |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/157413 |
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