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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Melts</journal-id><journal-title-group><journal-title xml:lang="en">Melts</journal-title><trans-title-group xml:lang="ru"><trans-title>Расплавы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0235-0106</issn><issn publication-format="electronic">3034-5715</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">662100</article-id><article-id pub-id-type="doi">10.31857/S0235010624040084</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Simulation of dissolution of cerium trifluoride in a mixture of LIF–NaF–KF</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование растворения трифторида церия в смеси LiF–NaF–KF</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zakiryanov</surname><given-names>D. O.</given-names></name><name xml:lang="ru"><surname>Закирьянов</surname><given-names>Д. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dmitryz.ihte@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of High Temperature Electrochemistry, Ural Branch of the RAS</institution></aff><aff><institution xml:lang="ru">Институт высокотемпературной электрохимии УрО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-10-24" publication-format="electronic"><day>24</day><month>10</month><year>2024</year></pub-date><issue>4</issue><fpage>442</fpage><lpage>450</lpage><history><date date-type="received" iso-8601-date="2025-02-25"><day>25</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0235-0106/article/view/662100">https://journals.eco-vector.com/0235-0106/article/view/662100</self-uri><abstract xml:lang="en"><p>The study of phase diagrams of multicomponent molten mixtures is traditionally carried out either by experimental measurements or thermodynamic calculations based on known experimental data. Atomistic modeling occupies a significantly smaller share in the methodology, and the capabilities of this approach have been poorly studied. In this work, we simulated the dissolution of cerium trifluoride in the ternary eutectic of lithium, sodium, and potassium fluorides using the molecular dynamics method. A time- and ensemble-scale simulation of the coexisting crystalline phase and melt at several temperatures was carried out. The influence of ensemble size was studied. The rate of dissolution was studied depending on temperature. The asymptote of the dependence agrees well with the experimental liquidus temperature for a given composition. A conclusion is given about the possibility of using molecular dynamics to determine the complete solubility of a melt component.</p></abstract><trans-abstract xml:lang="ru"><p>Изучение фазовых диаграмм многокомпонентных расплавленных смесей традиционно осуществляется либо экспериментальными измерениями, либо термодинамическими расчетами на основе известных экспериментальных данных. Значительно меньшую долю в методологии занимает атомистическое моделирование, а возможности такого подхода слабо изу- чены. В настоящей работе было проведено моделирование растворения трифторида церия в тройной эвтектике фторидов лития, натрия и калия методом молекулярной динамики. Проведено масштабное по времени и размеру ансамбля моделирование сосуществующих кристаллической фазы и расплава при нескольких температурах. Исследовано влияние размера ансамбля. Изучена скорость растворения в зависимости от температуры. Асимптота зависимости хорошо согласуется с экспериментальной температурой ликвидуса для данного состава. Дано заключение о возможности использования молекулярной динамики для определения полной растворимости компонента расплава.</p></trans-abstract><kwd-group xml:lang="en"><kwd>phase diagrams</kwd><kwd>FLiNaK</kwd><kwd>solubility</kwd><kwd>cerium trifluoride</kwd><kwd>molecular dynamics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фазовые диаграммы</kwd><kwd>FLiNaK</kwd><kwd>растворимость</kwd><kwd>трифторид церия</kwd><kwd>молекулярная динамика</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Magnusson J., Memmott M., Munro T. // Annals of Nuclear Energy. 2020.146. 107608. https://doi.org/10.1016/j.anucene.2020.107608</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ågren J. // Current Opinion in Solid State &amp; Materials Science 1996. 1. 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