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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ МИСИС</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2021-1-57-65</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1221</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>Металловедение и термическая обработка</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physical Metallurgy and Heat Treatment</subject></subj-group></article-categories><title-group><article-title>Совместное металлотермическое восстановление титана и редких тугоплавких металлов V группы</article-title><trans-title-group xml:lang="en"><trans-title>Joint metallothermic reduction of titanium and rare refractory metals of V group</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>Балакирев</surname><given-names>В. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Balakirev</surname><given-names>V. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>советник РАН, чл.-кор. РАН, докт. хим. наук, гл. науч. сотр.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>advisor of the Russian Academy of Sciences (RAS), corresponding member of the RAS, Dr. Sci. (Chem.), chief researcher</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p></bio><email xlink:type="simple">vfbal@mail.ru</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>Осинкина</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Osinkina</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, мл. науч. сотр.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>postgraduate student, junior researcher</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p></bio><email xlink:type="simple">cool-ezhk@yandex.ru</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>Красиков</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasikov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. техн. наук, гл. науч. сотр.; проф.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p><p>620144, г. Екатеринбург, ул. Куйбышева, 30</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), chief researcher of the Institute of Metallurgy; prof.</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p><p>620144, Russia, Ekaterinburg, Kuibysheva str., 30</p></bio><email xlink:type="simple">sankr@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жилина</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhilina</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, ст. науч. сотр.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), senior researcher</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p></bio><email xlink:type="simple">ezhilina@bk.ru</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>Ведмидь</surname><given-names>Л. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Vedmid’</surname><given-names>L. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, ст. науч. сотр.; ст. науч. сотр.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), senior researcher; senior researcher</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p><p>620002, Russia, Ekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">elarisa100@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жидовинова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhidovinova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, ст. науч. сотр.</p><p>620016, г. Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), senior researcher</p><p>620016, Russia, Ekaterinburg, Amundsena str., 101</p></bio><email xlink:type="simple">zhysv@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии (ИМЕТ) УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy of the Ural Branch of the RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт металлургии (ИМЕТ) УрО РАН; Уральский государственный горный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy of the Ural Branch of the RAS; Ural State Mining University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт металлургии (ИМЕТ) УрО РАН; Уральский федеральный университет (УрФУ) им. первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy of the Ural Branch of the RAS; Ural Federal University (UrFU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>10</day><month>02</month><year>2021</year></pub-date><volume>1</volume><issue>1</issue><fpage>57</fpage><lpage>65</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Балакирев В.Ф., Осинкина Т.В., Красиков С.А., Жилина Е.М., Ведмидь Л.Б., Жидовинова С.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Балакирев В.Ф., Осинкина Т.В., Красиков С.А., Жилина Е.М., Ведмидь Л.Б., Жидовинова С.В.</copyright-holder><copyright-holder xml:lang="en">Balakirev V.F., Osinkina T.V., Krasikov S.A., Zhilina E.M., Vedmid’ L.B., Zhidovinova S.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://cvmet.misis.ru/jour/article/view/1221">https://cvmet.misis.ru/jour/article/view/1221</self-uri><abstract><p>Изучены особенности фазообразования при совместном алюминотермическом восстановлении титана, ниобия, тантала, ванадия из их оксидов с использованием методов термодинамического моделирования, дифференциально-термичес- кого и рентгенофазового анализов. Применение компьютерного термодинамического моделирования позволило прогнозировать в металлотермическом процессе оптимальные температурные условия, состав и соотношение реагентов в шихтах, поведение элементов и последовательность формирования фаз. Для выявления кинетической и термохимической составляющих процесса термодинамические расчеты были дополнены дифференциально-термическими исследованиями с помощью метода совмещенной сканирующей калориметрии. Анализ теоретических и экспериментальных данных позволил установить, что взаимодействие алюминия с диоксидом титана протекает через стадию образования монооксида титана и характеризуется, в зависимости от соотношения в шихтах Al и TiO2, формированием интерметаллических соединений TixAly различного состава (TiAl3, TiAl, Ti2Al). При частичной замене диоксида титана на оксиды ниобия, тантала и ванадия металлотермический процесс при взаимодействиях в системах Al–TiO2–Nb2O5, Al–TiO2–Ta2O5 и Al–TiO2–V2O5 имеет аналогичный характер, вступает в активную фазу после появления жидкого алюминия, сопровождается экзотермическими эффектами и характеризуется приоритетным образованием алюминидов титана и двойных и тройных интерметаллических соединений алюминия с редкими тугоплавкими металлами V группы – AlNb3, Al3Nb, Al3Ta, Al3(Ti1–х,Taх), Al3(Ti0,8,V0,2). Совместное превращение диоксида титана и пентаоксидов редких тугоплавких металлов в процессе восстановления осуществляется через последовательные и параллельные стадии образования простых и сложных оксидов элементов с низкими степенями окисления.</p></abstract><trans-abstract xml:lang="en"><p>The features of phase formation during the joint aluminothermic reduction of titanium, niobium, tantalum, vanadium from their oxides using methods of thermodynamic modeling, differential thermal and X-ray phase analysis were studied. Computer thermodynamic modeling made it possible to predict the optimal temperature conditions in the metallothermic process, composition and ratio of reagents in the charge, behavior of elements and sequence of phase formation. Thermodynamic calculations were supplemented by differential thermal studies using the combined scanning calorimetry method to identify the kinetic and thermochemical components of the process. An analysis of theoretical and experimental data allowed us to establish that the interaction of aluminum with titanium dioxide proceeds through the stage of titanium monoxide formation and features by the formation of TixAly intermetallic compounds of various compositions (TiAl3, TiAl, Ti2Al) depending on the Al and TiO2 ratio in the charge. When titanium dioxide is partially replaced by niobium, tantalum and vanadium oxides, the metallothermic process during interactions in the Al–TiO2–Nb2O5, Al–TiO2–Ta2O5 and Al–TiO2–V2O5 systems has a similar nature, enters the active phase once liquid aluminum appears, is accompanied by exothermic effects and features by the priority formation of titanium aluminides and binary and ternary intermetallic aluminum compounds with Group 5 rare refractory metals – AlNb3, Al3Nb, Al3Ta, Al3(Ti1–х, Taх), Al3(Ti0,8V0,2). The joint conversion of titanium dioxide and rare refractory metal pentoxides during the reduction process is carried out through sequential and parallel stages of the formation of simple and complex element oxides with low oxidation states.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фазообразование</kwd><kwd>алюминотермическое восстановление</kwd><kwd>титановые сплавы</kwd><kwd>редкие металлы</kwd><kwd>интерметаллические соединения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>formation</kwd><kwd>aluminothermic reduction</kwd><kwd>titanium alloys</kwd><kwd>rare metals</kwd><kwd>intermetallic compounds</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">Чуфаров Г.И., Татиевская Е.П. Адсорбционно-каталитическая теория восстановления окислов металлов. В сб.: Проблемы металлургии. Под ред. А.Н. Самарина. М.: АН СССР, 1953. 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