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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">10.17073/0368-0797-2018-4-260-267</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1288</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>СИНТЕЗ ВЫСОКОДИСПЕРСНОГО КАРБИДА ВАНАДИЯ (VC0,88) С ИСПОЛЬЗОВАНИЕМ НАНОВОЛОКНИСТОГО УГЛЕРОДА</article-title><trans-title-group xml:lang="en"><trans-title>SYNTHESIS OF FINELY DISPERSED VANADIUM CARBIDE (VC0.88) USING NANOFIBROUS CARBON</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>Крутский</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Krutskii</surname><given-names>Yu. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры химии и химической технологии</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair “Chemistry and Chemical Technology”</p></bio><email xlink:type="simple">j_krutskii@rambler.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>Тюрин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyurin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры материаловедения в машиностроении</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng), Assist. Professor of the Chair “Material Science and Mechanical Engineering”</p></bio><email xlink:type="simple">a.tyurin@corp.nstu.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>Попов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший преподаватель кафедры химии и химической технологии</p></bio><bio xml:lang="en"><p>Senior Lecturer of the Chair “Chemistry and Chemical Technology”</p></bio><email xlink:type="simple">m.popov@corp.nstu.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>Максимовский</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimovskii</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.х.н., старший научный сотрудник лаборатории эпитаксиальных слоев</p></bio><bio xml:lang="en"><p>Cand. Sci (Chem.), Senior Researcher of the Laboratory of Epitaxial Layers</p></bio><email xlink:type="simple">eugene@niic.nsc.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>Нецкина</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Netskina</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.х.н., старший научный сотрудник лаборатории исследования гидридных соединений</p></bio><bio xml:lang="en"><p>Cand. Sci (Chem.), Senior Researcher of the Laboratory of Hydride Investigation</p></bio><email xlink:type="simple">netskina@catalysis.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новосибирский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Technical University, Novosibirsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт неорганической химии им. А.В. Николаева СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт катализа им. Г.К. Борескова СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Boreskov Institute of Catalysis SB RAS, Novosibirsk</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>26</day><month>04</month><year>2018</year></pub-date><volume>61</volume><issue>4</issue><fpage>260</fpage><lpage>267</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Крутский Ю.Л., Тюрин А.Г., Попов М.В., Максимовский Е.А., Нецкина О.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Крутский Ю.Л., Тюрин А.Г., Попов М.В., Максимовский Е.А., Нецкина О.В.</copyright-holder><copyright-holder xml:lang="en">Krutskii Y.L., Tyurin A.G., Popov M.V., Maksimovskii E.A., Netskina O.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/1288">https://fermet.misis.ru/jour/article/view/1288</self-uri><abstract><p>Представлены результаты исследования процесса синтеза высокодисперсного порошка карбида ванадия состава VC0,88 . Карбид ванадия был получен восстановлением оксида ванадия (III) нановолокнистым углеродом (НВУ) в индукционной печи в среде аргона. НВУ  – продукт каталитического разложения легких углеводородов. Основной характеристикой НВУ является высокое значение удельной поверхности (~150  000  м2 /кг), что существенно выше, чем у сажи(~50  000  м2 /кг). Содержание примесей в НВУ находится на уровне 1  % (по массе). На основе анализа диаграммы состояния системы V – C определены состав шихты и верхний температурный предел реакции карбидообразования для получения карбида ванадия в порошкообразном состоянии. На основе термодинамического анализа определена температура начала реакции карботермического восстановления оксида ванадия (III) при различных давлениях СО. Изучены характеристики карбида ванадия с использованием рентгенофазового и элементных анализов, пикнометрического анализа, сканирующей электронной микроскопии с применением локального энергодисперсионного рентгеновского микроанализа (EDX), низкотемпературной адсорбции азота с последующим определением удельной поверхности по методу БЭТ, седиментационного анализа, синхронной термогравиметрии и  дифференциальной сканирующей калориметрии (TГ/ДСК). Полученный при оптимальных параметрах материал представлен одной фазой  – карбидом ванадия VC0,88 . Частицы порошка преимущественно агрегированы. Средний размер частиц и агрегатов составляет 9,2  –  9,4  мкм с широким диапазоном распределения по размерам. Удельная поверхность образцов составляет 1800 – 2400 м2 /кг. Окисление карбида ванадия начинается при температуре примерно 430 °С и практически заканчивается приблизительно при 830 °С. Оптимальными параметрами синтеза являются соотношение реагентов по стехиометрии на получение карбида состава VC0,88 при температуре 1500  –  1600  °С и времени выдержки 20 мин. Показано, что для такого процесса нановолокнистый углерод является эффективным восстановителем и карбидизатором и что оксид ванадия (III) практически полностью восстанавливается до карбида VC0,88 </p></abstract><trans-abstract xml:lang="en"><p>The paper presents the experimental data on the synthesis of finely dispersed powder of vanadium carbide (VC0.88 ). Vanadium carbide was prepared by the reduction of vanadium oxide  (III) with nanofibrous carbon (NFC) in the induction furnace under an argon atmosphere. NFC is a product of catalytic decomposition of light hydrocarbons. The main characteristic of a NFC is a high specific surface area (~150  000  m2 /kg), which is significantly higher than that of soot (~50  000  m2 /kg). The content of impurities in the NFC is at the level of 1  %  wt. Based on the analysis of the state diagram of the V – C system, the composition of the charge and the upper temperature limit of the carbide formation reaction for obtaining vanadium carbide in the powder state are determined. Based on the thermodynamic analysis, the temperature of the onset of the carbothermic reduction reaction of vanadium oxide (III) at various CO pressures was determined. The characteristics of vanadium carbide were studied using X-ray and elemental analyzes, pycnometric analysis, scanning electron microscopy using local energy dispersive X-ray microanalysis (EDX), low-temperature adsorption of nitrogen, followed by determination of the BET specific surface area, sedimentation analysis, synchronous thermogravimetry and differential scanning calorimetry (TG/DSC). The material obtained at optimal parameters is represented by a single phase  – vanadium carbide VC0.88 . The powder particles were predominantly aggregated. The average size of the particles and the aggregates equaled 9.2  –  9.4  μm within a wide range of size distribution. The specific surface value of the obtained samples was 1800  –  2400  m2 /g. Oxidation of vanadium carbide began from the temperature of ~430  °C and practically ends at ~830  °C. Optimum parameters of synthesis are the ratio of reagents according to stoichiometry to obtain carbide of composition VC0.88 at a temperature of 1500  –  1600  °С and a holding time of 20  minutes. It is shown that for this process nanofibrous carbon is an effective reducing agent and that vanadium oxide  (III) is almost completely reduced to carbide VC0.88 </p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокодисперсный порошок</kwd><kwd>синтез</kwd><kwd>карбид ванадия</kwd><kwd>нановолокнистый углерод</kwd><kwd>карботермическое восстановление</kwd></kwd-group><kwd-group xml:lang="en"><kwd>finely dispersed powder</kwd><kwd>synthesis</kwd><kwd>vanadium carbide</kwd><kwd>nanofibrous carbon</kwd><kwd>carbothermic reduction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в НГТУ в рамках проектной части государственного задания Министерства образования и науки Российской Федерации № 10.1151.2014/K</funding-statement><funding-statement xml:lang="en">The work was performed in the NSTU within the project part of the state task of the Ministry of Education and Science of the Russian Federation no. 10.1151.2014/K</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Свойства, получение и применение тугоплавких соединений: справочник / Под ред. 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