<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" article-type="research-article" dtd-version="1.2" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Experimental and Theoretical Physics</journal-id><journal-title-group><journal-title>Journal of Experimental and Theoretical Physics</journal-title></journal-title-group><issn publication-format="print">0044-4510</issn><issn publication-format="electronic">3034-641X</issn><publisher><publisher-name>Russian Academy of Science</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31857/S0044451023120131</article-id><title-group><article-title>Interatomic Interaction at the Al–TiC Interface</article-title><trans-title-group xml:lang="ru"><trans-title>Взаимодействие атомов на межфазной границе Al-TiC</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid"></contrib-id><name-alternatives><name xml:lang="en"><surname>Reshetnyak</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Решетняк</surname><given-names>В. В. </given-names></name></name-alternatives><email>reshetnyak_v_v_noemail@ras.ru</email><xref ref-type="aff" rid="aff-1"></xref><xref ref-type="aff" rid="aff-2"></xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid"></contrib-id><name-alternatives><name xml:lang="en"><surname>Aborkin</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Аборкин</surname><given-names>А. В. </given-names></name></name-alternatives><email>aborkin_a_v_noemail@ras.ru</email><xref ref-type="aff" rid="aff-3"></xref></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid"></contrib-id><name-alternatives><name xml:lang="en"><surname>Filippov</surname><given-names>A. V</given-names></name><name xml:lang="ru"><surname>Филиппов</surname><given-names>А. В </given-names></name></name-alternatives><email>filippov_a_v_noemail@ras.ru</email><xref ref-type="aff" rid="aff-5"></xref></contrib></contrib-group><aff-alternatives id="aff-1"><aff><institution xml:lang="ru">ГНЦ РФ Троицкий институт инновационных и термоядерных исследований;Объединенный институт высоких температур Российской академии наук;Владимирский государственный университет им. А. Г. и Н. Г. Столетовых</institution><institution xml:lang="en">Troitsk Institute for Innovation and Fusion Research;  Joint Institute for High Temperatures, Russian Academy of Sciences; Vladimir State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff><institution xml:lang="ru"></institution><institution xml:lang="en"></institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff><institution xml:lang="ru">Владимирский государственный университет им. А. Г. и Н. Г. Столетовых</institution><institution xml:lang="en">Vladimir State University</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff><institution xml:lang="ru">ГНЦ РФ Троицкий институт инновационных и термоядерных исследований;Объединенный институт высоких температур Российской академии наук</institution><institution xml:lang="en">Troitsk Institute for Innovation and Fusion Research;  Joint Institute for High Temperatures, Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-01" publication-format="electronic"><day>01</day><month>12</month><year>2023</year></pub-date><volume>164</volume><issue>6</issue><fpage>996</fpage><lpage>1007</lpage><abstract xml:lang="en"><p>The interaction of a titanium carbide nanoparticle with aluminum (100), (110), and (111) substrates is investigated within the density functional theory. The nanoparticle–substrate interaction energies are determined; the electron density distribution and the electron localization function between aluminum, titanium, and carbon atoms are analyzed. It has been established that the atoms in the upper layers of the aluminum (100) and (110) substrates are significantly displaced relative to their initial positions as a result of the interaction with the nanoparticle, whereas a minor displacement of atoms is typical for the (111) substrate. The interaction between aluminum and carbon atoms at the Al–TiC interface is due to the formation of covalent Al–C chemical bonds. The aluminum atoms forming carbide bonds do not form chemical bonds with titanium atoms. The aluminum atoms that are adjacent to the titanium atoms and are not involved in the formation of carbide bonds form metallic Al–Ti bonds.</p></abstract><trans-abstract xml:lang="ru"><p>В рамках теории функционала плотности выполнено исследование взаимодействия наночастицы карбида титана с подложками алюминия (100), (110) и (111). Определены энергии взаимодействия наночастицы с подложкой, проведен анализ распределения электронной плотности и функции локализации электронов между атомами алюминия, титана и углерода. Установлено, что атомы верхних слоев подложек алюминия (100) и (110) в результате взаимодействия с наночастицей существенно смещаются относительно своих исходных позиций, в то время как для подложки (111) характерно незначительное смещение атомов. Взаимодействие между атомами алюминия и углерода на межфазной границе Al-TiC обусловлено образованием ковалентных химических связей Al-C. Образующие карбидные связи атомы алюминия не формируют химических связей с атомами титана. Атомы алюминия, расположенные по соседству с атомами титана и не участвующие в формировании карбидных связей, образуют связи Al-Ti металлического типа.</p></trans-abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>B1</label><citation-alternatives><mixed-citation xml:lang="ru">I.A. Evdokimov, T.A. Chernyshova, G.I. Pivovarov, P.A. Bykov, L.A. Ivanov, and V.E. Vaganov, Inorg. Mater. Appl. Res. 5, 255 (2014).</mixed-citation><mixed-citation xml:lang="en"></mixed-citation></citation-alternatives></ref><ref id="B2"><label>B2</label><citation-alternatives><mixed-citation xml:lang="ru">R. Casati and M. Vedani, Metals 4, 65 (2014).</mixed-citation><mixed-citation xml:lang="en"></mixed-citation></citation-alternatives></ref><ref id="B3"><label>B3</label><citation-alternatives><mixed-citation xml:lang="ru">A.V. Aborkin, D.V. Bokaryov, S.A. Pankratov, and A.I. 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