Radiation Synthesis of High-Temperature Wide-Bandgap Ceramics; Micromachines; Vol. 14, iss. 12
| Parent link: | Micromachines.— .— Basel: MDPI AG Vol. 14, iss. 12.— 2023.— Article number 2193, 30 p. |
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| Outros Autores: | , , , , , , |
| Resumo: | Title screen This paper presents the results of ceramic synthesis in the field of a powerful flux of high-energy electrons on powder mixtures. The synthesis is carried out via the direct exposure of the radiation flux to a mixture with high speed (up to 10 g/s) and efficiency without the use of any methods or means for stimulation. These synthesis qualities provide the opportunity to optimize compositions and conditions in a short time while maintaining the purity of the ceramics. The possibility of synthesizing ceramics from powders of metal oxides and fluorides (MgF2, BaF2, WO3, Ga2O3, Al2O3, Y2O3, ZrO2, MgO) and complex compounds from their stoichiometric mixtures (Y3Al3O12, Y3AlxGa(5−x) O12, MgAl2O4, ZnAl2O4, MgWO4, ZnWO4, BaxMg(2−x) F4), including activators, is demonstrated. The ceramics synthesized in the field of high-energy electron flux have a structure and luminescence properties similar to those obtained by other methods, such as thermal methods. The results of studying the processes of energy transfer of the electron beam mixture, quantitative assessments of the distribution of absorbed energy, and the dissipation of this energy are presented. The optimal conditions for beam treatment of the mixture during synthesis are determined. It is shown that the efficiency of radiation synthesis of ceramics depends on the particle dispersion of the initial powders. Powders with particle sizes of 1–10 µm, uniform for the synthesis of ceramics of complex compositions, are optimal. A hypothesis is put forward that ionization processes, resulting in the radiolysis of particles and the exchange of elements in the ion–electron plasma, dominate in the formation of new structural phases during radiation synthesis Текстовый файл |
| Idioma: | inglês |
| Publicado em: |
2023
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| Assuntos: | |
| Acesso em linha: | http://earchive.tpu.ru/handle/11683/132489 https://doi.org/10.3390/mi14122193 |
| Formato: | Recurso Electrónico Capítulo de Livro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=679868 |
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| 200 | 1 | |a Radiation Synthesis of High-Temperature Wide-Bandgap Ceramics |f Victor Lisitsyn, Aida Tulegenova, Mikhail Golkovski [et al.] | |
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| 330 | |a This paper presents the results of ceramic synthesis in the field of a powerful flux of high-energy electrons on powder mixtures. The synthesis is carried out via the direct exposure of the radiation flux to a mixture with high speed (up to 10 g/s) and efficiency without the use of any methods or means for stimulation. These synthesis qualities provide the opportunity to optimize compositions and conditions in a short time while maintaining the purity of the ceramics. The possibility of synthesizing ceramics from powders of metal oxides and fluorides (MgF2, BaF2, WO3, Ga2O3, Al2O3, Y2O3, ZrO2, MgO) and complex compounds from their stoichiometric mixtures (Y3Al3O12, Y3AlxGa(5−x) O12, MgAl2O4, ZnAl2O4, MgWO4, ZnWO4, BaxMg(2−x) F4), including activators, is demonstrated. The ceramics synthesized in the field of high-energy electron flux have a structure and luminescence properties similar to those obtained by other methods, such as thermal methods. The results of studying the processes of energy transfer of the electron beam mixture, quantitative assessments of the distribution of absorbed energy, and the dissipation of this energy are presented. The optimal conditions for beam treatment of the mixture during synthesis are determined. It is shown that the efficiency of radiation synthesis of ceramics depends on the particle dispersion of the initial powders. Powders with particle sizes of 1–10 µm, uniform for the synthesis of ceramics of complex compositions, are optimal. A hypothesis is put forward that ionization processes, resulting in the radiolysis of particles and the exchange of elements in the ion–electron plasma, dominate in the formation of new structural phases during radiation synthesis | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |t Micromachines |c Basel |n MDPI AG | |
| 463 | 1 | |t Vol. 14, iss. 12 |v Article number 2193, 30 p. |d 2023 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a radiation synthesis | |
| 610 | 1 | |a refractory dielectric materials | |
| 610 | 1 | |a luminescence | |
| 610 | 1 | |a high-power electron flux | |
| 610 | 1 | |a ceramics | |
| 701 | 1 | |a Lisitsyn |b V. M. |c physicist |c Russian physicist |c Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1939- |g Viktor Mikhailovich |9 13239 | |
| 701 | 1 | |a Tulegenova |b A. T. |g Aida Tulegenkyzy | |
| 701 | 1 | |a Golkovsky |b M. G. |g Mikhail Gedalievich | |
| 701 | 1 | |a Polisadova |b E. F. |c specialist in the field of lighting engineering |c professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences |f 1972- |g Elena Fyodorovna |9 17473 | |
| 701 | 1 | |a Lisitsyna |b L. A. |g Lyudmila Aleksandrovna | |
| 701 | 1 | |a Musakhanov |b D. A. |g Dosymkhan Abitkhanovich | |
| 701 | 1 | |a Alpysova |b G. K. |g Gulnur Kenzhebekovna | |
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