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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">Himičeskaâ fizika</journal-id><journal-title-group><journal-title xml:lang="en">Himičeskaâ fizika</journal-title><trans-title-group xml:lang="ru"><trans-title>Химическая физика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0207-401X</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">681881</article-id><article-id pub-id-type="doi">10.31857/S0207401X24080039</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Combustion, explosion and shock waves</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Горение, взрыв и ударные волны</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">Combustion peculiarities in the 2Co–Ti–Al system and properties of half-metallic ferromagnetic Heusler alloy Co<sub>2</sub>TiAl</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности горения в системе 2Co–Ti–Al и свойства полуметаллического ферромагнитного сплава Гейслера Co<sub>2</sub>TiAl</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Busurina</surname><given-names>M. L.</given-names></name><name xml:lang="ru"><surname>Бусурина</surname><given-names>М. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>busurina@ism.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sytschev</surname><given-names>A. E.</given-names></name><name xml:lang="ru"><surname>Сычёв</surname><given-names>А. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>busurina@ism.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vadchenko</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Вадченко</surname><given-names>С. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>busurina@ism.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Karpov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Карпов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>busurina@ism.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian academy of sciences</institution></aff><aff><institution xml:lang="ru">Институт структурной макрокинетики и проблем материаловедения им. А.Г. Мержанова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2024</year></pub-date><volume>43</volume><issue>8</issue><fpage>24</fpage><lpage>30</lpage><history><date date-type="received" iso-8601-date="2025-06-01"><day>01</day><month>06</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://transsyst.ru/0207-401X/article/view/681881">https://transsyst.ru/0207-401X/article/view/681881</self-uri><abstract xml:lang="en"><p>Combustion in the 2Co–Ti–Al system was observed by high-speed video recording. It is established that combustion occurs in the frontal mode, and the process parameters are determined. The maximum rate of the combustion temperature increase from the moment of initiation to the maximum value reached 2.7 · 10<sup>4</sup> K/s. The front propagation velocity calculated from the video recording was 9.4 cm/s. A micro-hotspot mode of combustion of the reaction composition was found. The temperature dependences of the electrical resistivity and magnetic moment of the single-phase Co<sub>2</sub>TiAl product synthesized in the combustion mode have been measured. For the synthesized Co<sub>2</sub>TiAl sample, the Curie temperature is <italic>T<sub>c</sub></italic> = 120 ± 5 K, and the electrical resistivity at room temperature is 1.35 μOhm · m. It is shown that the electrical and magnetic properties of the Co<sub>2</sub>TiAl alloy obtained in the combustion mode are similar to those of alloys obtained by arc melting.</p></abstract><trans-abstract xml:lang="ru"><p>Методом высокоскоростной видеосъемки исследовано горение в системе 2Co–Ti–Al. Установлено, что горение происходит во фронтальном режиме. Определены параметры процесса. Максимальная скорость роста температуры горения с момента инициирования до максимального значения достигала 2.7 · 10<sup>4</sup> К/с. Рассчитанная по видеозаписи скорость распространения фронта составила 9.4 см/с. Обнаружен микроочаговый режим горения реакционного состава. Исследованы температурные зависимости удельного электросопротивления и магнитного момента синтезированного в режиме горения однофазного продукта Co<sub>2</sub>TiAl. Для синтезированного образца Co<sub>2</sub>TiAl значение температуры Кюри составляет <italic>T</italic><sub>с</sub> = (120 ± 5) К, а удельное электросопротивление при комнатной температуре – 1.35 мкОм ⋅ м. Показано, что электрические и магнитные свойства сплава Co<sub>2</sub>TiAl, полученного в режиме горения, аналогичны свойствам сплавов, полученных методом дуговой плавки.</p></trans-abstract><kwd-group xml:lang="en"><kwd>SHS</kwd><kwd>high-speed video recording</kwd><kwd>Co2TiAl Heusler phase</kwd><kwd>magnetic properties</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>самораспространяющийся высокотемпературный синтез</kwd><kwd>высокоскоростная видеосъемка</kwd><kwd>фаза Гейслера Co2TiAl</kwd><kwd>магнитные свойства</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">F. Appel, H. Clemens, F. Fischer, J. Progress Mater. 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