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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2025-69-3-242-247</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1257</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Неизотермическая нуклеация и формирование кластеров SiO2</article-title><trans-title-group xml:lang="en"><trans-title>Nonisothermal nucleation and formation of SiO2 clusters</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демух</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Demukh</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Демух Елена Сергеевна – мл. науч. сотрудник</p><p>ул. П. Бровки, 15, 220072, Минск</p></bio><bio xml:lang="en"><p>Demukh Elena S. – Junior Researcher</p><p>15, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">elena_demukh@hmti.ac.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пенязьков</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Penyazkov</surname><given-names>O. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пенязьков Олег Глебович – академик, д-р физ.мат. наук, директор</p><p>ул. П. Бровки, 15, 220072, Минск</p></bio><bio xml:lang="en"><p>Penyazkov Oleg G. – Academician, D. Sc. (Physics and Mathematics), Director</p><p>15, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">penyaz@dnp.itmo.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фисенко</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Fisenko</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фисенко Сергей Павлович – д-р физ.-мат. наук, гл. науч. сотрудник</p><p>ул. П. Бровки, 15, 220072, Минск</p></bio><bio xml:lang="en"><p>Fisenko Sergey P. – D. Sc. (Physics and Mathematics), Chief Researcher</p><p>15, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">fsp@hmti.ac.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт тепло- и массообмена имени А. В. Лыкова Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>07</month><year>2025</year></pub-date><volume>69</volume><issue>3</issue><fpage>242</fpage><lpage>247</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Демух Е.С., Пенязьков О.Г., Фисенко С.П., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Демух Е.С., Пенязьков О.Г., Фисенко С.П.</copyright-holder><copyright-holder xml:lang="en">Demukh E.S., Penyazkov O.G., Fisenko S.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://doklady.belnauka.by/jour/article/view/1257">https://doklady.belnauka.by/jour/article/view/1257</self-uri><abstract><p>В работе представлены результаты моделирования процесса гомогенной нуклеации паров диоксида кремния с целью улучшения понимания особенности работы высокотемпературного стенда. Процесс нуклеации описан как результат тройного столкновения: двух молекул диоксида кремния и любой третьей молекулы в газовой смеси. Показано, что при больших пересыщениях пара нуклеация имеет существенно неизотермический характер. При этом формируется более 1021 кластеров/м3 . Выделение скрытой теплоты фазового перехода существенно, на сотни градусов Кельвина, повышает температуру газовой смеси. Обнаружено, что чем выше пересыщение пара, тем меньше квазистационарный радиус нанометровых кластеров. Этот эффект влияет на броуновское осаждение кластеров на подложку</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of modeling the process of homogeneous nucleation of silicon dioxide vapors. The purpose of the modeling is to improve the understanding of the operating features of a high-temperature stand. The nucleation process is described as a result of a triple collision between two molecules of silicon dioxide and any third molecule in the gas mixture. It has been demonstrated that at high vapor supersaturations, nucleation exhibits a significantly non-isothermal character. The formation of more than 1021 clusters per cubic meter is observed. The release of latent heat of the phase transition significantly increases the temperature of the gas mixture (by hundreds of degrees Kelvin). It is found that the higher the vapor supersaturation, the smaller the quasi-steady radius of nanometer clusters. This effect influences the Brownian deposition of clusters on the substrate.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>свободномолекулярный режим</kwd><kwd>температура кластеров</kwd><kwd>радиус кластеров</kwd><kwd>пересыщение пара</kwd><kwd>броуновская диффузия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>free-molecular regime</kwd><kwd>cluster temperature</kwd><kwd>cluster radius</kwd><kwd>supersaturation vapor</kwd><kwd>Brownian diffusion</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Patent US5043002A, C03B37/01413. Method of making fused silica by decomposing silooxanes: No. 568230: filing date 16.08.1990: publ. date 27.08.1991 / Dobbins M. S., McLay R. E. – URL: https://patents.google.com/patent/US5043002A/en</mixed-citation><mixed-citation xml:lang="en">Dobbins M. S., McLay R. E. Method of making fused silica by decomposing silooxanes: patent US5043002A. Publ date 27 August 1991. Available at: https://patents.google.com/patent/US5043002A/en</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Френкель, Я. И. Кинетическая теория жидкости / Я. И. Френкель. – М., 1975. – 592 c.</mixed-citation><mixed-citation xml:lang="en">Frenkel Ya. I. Kinetic theory of liquids. Moscow, 1975. 592 р. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Model of aerosol evolution in high supersaturated glycerol-air vapor mixtures / S. P. Fisenko, A. A. Rostami, D. B. Kane [et al.] // Aerosol Science and Technology. – 2021. – Vol. 55, N 8. – P. 871–885. https://doi.org/10.1080/02786826.2021.1904130</mixed-citation><mixed-citation xml:lang="en">Fisenko S. P., Rostami A. A., Kane D. B., Pithawalla Y. B., Maximoff S. N., Li W., El- Shall M. S. Model of aerosol evolution in high supersaturated air-glycerol vapor mixtures. Aerosol Science and Technology, 2021, vol. 55, no. 8, pp. 871– 885. https://doi.org/10.1080/02786826.2021.1904130</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Samsonov, G. V. The Oxide Handbook / G. V. Samsanov. – New York, 1973. https://doi.org/10.1007/978-1-4615-9597-7</mixed-citation><mixed-citation xml:lang="en">Samsonov G. V. The Oxide Handbook. New York, 1973. https://doi.org/10.1007/978-1-4615-9597-7</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Голомако, Е. С. Осаждение наночастиц и их агломератов из ламинарного газового потока на подложку / Е. С. Голомако, В. И. Саверченко, С. П. Фисенко // Инженерно-физический журнал. – 2024. – Т. 97, № 7. – С. 1818–1822.</mixed-citation><mixed-citation xml:lang="en">Golomako E. S., Saverchenko V. I., Fisenko S. P. Deposition of nanoparticles and their agglomerates from a laminar gas flow onto a substrate. Journal of Engineering Physics and Thermophysics, 2024, vol. 97, pp. 1820–1824. https://doi.org/10.1007/s10891-024-03063-1</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
