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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2025-5-468-475</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2961</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>МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIAL SCIENCE</subject></subj-group></article-categories><title-group><article-title>Взаимодействие керамики на основе Al2O3 со шлаковым расплавом 45 % CaO – 40 % Al2O3 – 10 % SiO2 – 5 % MgO</article-title><trans-title-group xml:lang="en"><trans-title>Interaction of Al2O3-based ceramics with slag melt 45 % CaO – 40 % Al2O3 – 10 % SiO2 – 5 % MgO</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5028-7623</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Александрович Александров, к.т.н., старший научный сотрудник, заведующий лабораторией физикохимии металлических расплавов им. академика А.М. Самарина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Aleksandr A. Aleksandrov, Cand. Sci. (Eng.), Senior Researcher, Head of the A.M. Samarin Laboratory of Physical Chemistry of Metal Melts</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">a.a.aleksandrov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2650-0818</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анучкин</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Anuchkin</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Николаевич Анучкин, к.т.н., старший научный сотрудник лаборатории физикохимии металлических расплавов им. академика А.М. Самарина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Sergei N. Anuchkin, Cand. Sci. (Eng.), Senior Researcher of the A.M. Samarin Laboratory of Physical Chemistry of Metal Melts</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">AnuchkinSN@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9280-9442</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каневский</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kanevskiy</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аким Горациевич Каневский, к.т.н., старший научный сотрудник лаборатории физикохимии металлических расплавов им. академика А.М. Самарина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Akim G. Kanevskiy, Cand. Sci. (Eng.), Senior Researcher of the A.M. Samarin Laboratory of Physical Chemistry of Metal Melts</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">akanev48@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4508-2524</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Румянцева</surname><given-names>С. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Rumyantseva</surname><given-names>S. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Софья Борисовна Румянцева, к.т.н, научный сотрудник лаборатории диагностики материалов</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Sof’ya B. Rumyantseva, Cand. Sci. (Eng.), Research Associate of the Laboratory of Materials Diagnostics</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">sbvarlamova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5669-4262</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорович</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigorovich</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Всеволодович Григорович, академик РАН, д.т.н., заведующий лабораторией диагностики материалов, Институт металлургии и материаловедения им. А.А. Байкова РАН; профессор кафедры металлургии стали, новых производственных технологий и защиты металлов, Национальный исследовательский технологический университет «МИСИС»</p><p>Россия, 119334, Москва, Ленинский пр. 49</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Konstantin V. Grigorovich, Academician, Dr. Sci. (Eng.), Head of the Laboratory of Materials Diagnostics, Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences; Prof. of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection, National University of Science and Technology “MISIS”</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">grigorov@imet.ac.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии и материаловедения им. А.А. Байкова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт металлургии и материаловедения им. А.А. Байкова РАН; Национальный исследовательский технологический университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences; National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>08</day><month>11</month><year>2025</year></pub-date><volume>68</volume><issue>5</issue><fpage>468</fpage><lpage>475</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Александров А.А., Анучкин С.Н., Каневский А.Г., Румянцева С.Б., Григорович К.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Александров А.А., Анучкин С.Н., Каневский А.Г., Румянцева С.Б., Григорович К.В.</copyright-holder><copyright-holder xml:lang="en">Aleksandrov A.A., Anuchkin S.N., Kanevskiy A.G., Rumyantseva S.B., Grigorovich K.V.</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://fermet.misis.ru/jour/article/view/2961">https://fermet.misis.ru/jour/article/view/2961</self-uri><abstract><p>При выплавке стали огнеупорный материал, используемый в качестве футеровки, легко разрушается за счет шлака, что не только уменьшает срок службы керамики, но и снижает качество продукции, увеличивая количество неметаллических включений в металле. Если шлак имеет хорошую смачиваемость, то он стремится проникнуть в огнеупор через поры и трещины. В результате образуется пограничный слой со структурой и свойствами, отличными от исходного огнеупора. В данной работе для исследования взаимо­действия огнеупорного материала на базе Al2O3 с жидким шлаком 45 % CaO – 40 % Al2O3 – 10 % SiO2 – 5 % MgO был использован метод лежащей капли. Показано существенное снижение значений краевого угла смачивания до 20° в первые 5 мин опыта и последующее незначительное уменьшение до 13,5° в течение 115 мин. Исследована микроструктура и выполнено элементное картирование границ поперечных срезов шлака и керамики. Показано, что шлак состоит из нескольких фаз: Ca2(Mg0,25Al0,75)(Si1,25Al0,75O7 ), CaAl2O4 , CaAl4O7 и MgAl2O4 . Обнаружено, что пограничный слой шлак – керамика состоит из алюмината кальция (CaAl4O7 ), а на границах зерен оксида алюминия огнеупора происходит образование фазы ибонита (CaAl12O19 ). Рентгенофазовый анализ исходной керамики показал, что она содержит ~8 % CaAl4O7 , а после взаимодействия со шлаком ~32 % CaAl12O19 . Анализ керамики на глубине около 4 мм показал при­сутствие алюминатов кальция как в центральной, так и в краевых областях. Это указывает на проникновение шлака в керамику и его химическое взаимо­действие с ней.</p></abstract><trans-abstract xml:lang="en"><p>In steelmaking, the refractory material used as a lining is easily destroyed by slag, which not only decreases the service life of ceramics but also makes worse a production quality because of increase in the number of nonmetallic inclusions in metal. If the slag has good wettability, it tends to penetrate the refractory through pores and cracks. As a result, a boundary layer is formed, which has a structure and properties different from the initial material. The sessile drop method was used to study the interaction of Al2O3-based refractory ceramics with the liquid slag 45 % CaO – 40 % Al2O3 – 10 % SiO2 – 5 % MgO. The substantial decrease in the wetting angle to 20° in the initial 5 min of experiment and the further small decrease to 13.5° in the next 115 min were observed. The microstructural examination and elemental mapping of the boundaries of cross sections of slag and ceramics were carried out. The slag consists of several phases, namely: Ca2(Mg0.25Al0.75 )(Si1.25Al0.75O7 ); CaAl2O4 , CaAl4O7 and MgAl2O4 . As was found, the slag–ceramics boundary layer consisted of calcium aluminate (CaAl4O7 ) and, at the grain bounda­ries of aluminum oxide in the refractory material, hibonite (CaAl12O19 ) was formed. X-ray diffraction analysis of initial ceramics showed that it contained ~8 % CaAl4O7 , and after interaction with the slag ~32 % CaAl12O19 . At a depth of 4 mm, the presence of calcium aluminates both in the central and peripheral zones of ceramics was observed. This indicates the slag penetration into the ceramics and their chemical interaction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>огнеупорная керамика</kwd><kwd>шлак</kwd><kwd>оксид алюминия</kwd><kwd>взаимодействие шлак – керамика</kwd><kwd>краевой угол смачивания</kwd><kwd>микроструктура</kwd><kwd>рентгенофазовый анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>refractory ceramics</kwd><kwd>slag</kwd><kwd>aluminum oxide</kwd><kwd>slag–ceramics interaction</kwd><kwd>wetting angle</kwd><kwd>microstructure</kwd><kwd>X-ray diffraction analysis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по государственному заданию 075-00319-25-00. 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