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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">powder</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Порошковая металлургия и функциональные покрытия</journal-title><trans-title-group xml:lang="en"><trans-title>Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-308X</issn><issn pub-type="epub">2412-8767</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1997-308X-2020-2-14-20</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-536</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>Самораспространяющийся высокотемпературный синтез</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Self-Propagating High-Temperature Synthesis (SHS)</subject></subj-group></article-categories><title-group><article-title>Самораспространяющийся высокотемпературный синтез нановолокон карбида кремния</article-title><trans-title-group xml:lang="en"><trans-title>Self-propagating high-temperature synthesis of silicon carbide nanofibers</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>Закоржевский</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakorzhevsky</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, ведущий научный сотрудник лаборатории СВС ИСМАН.</p><p>142432, Московская обл., Черноголовка, ул. Акад. Осипьяна, 8.</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), Leading research scientist, Laboratory of self-propagating high-temperature synthesis (SHS), Merzhanov Institute of Structural Macrokinetics and Materials Science of Russian Academy of Sciences (ISMAN).</p><p>142432, Moscow reg., Chernogolovka, Acad. Osipyan str., 8.</p></bio><email xlink:type="simple">zakvl@ism.ac.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>Лорян</surname><given-names>В. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Loryan</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор технических наук, заведующий лабораторией СВС ИСМАН.</p><p>142432, Московская обл., Черноголовка, ул. Акад. Осипьяна, 8.</p></bio><bio xml:lang="en"><p>Dr. Sci. (Tech.), Head of Laboratory of SHS, ISMAN.</p><p>142432, Moscow reg., Chernogolovka, Acad. Osipyan str., 8.</p></bio><email xlink:type="simple">loryan@ism.ac.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>Акопджанян</surname><given-names>Т. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Akopdzhanyan</surname><given-names>T. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, научный сотрудник лаборатории СВС ИСМАН.</p><p>142432, Московская обл., Черноголовка, ул. Акад. Осипьяна, 8.</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), Research scientist, Laboratory of SHS, ISMAN.</p><p>142432, Moscow reg., Chernogolovka, Acad. Osipyan str., 8.</p></bio><email xlink:type="simple">tigj@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт структурной макрокинетики и проблем материаловедения (ИСМАН) им. А.Г. Мержанова Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Merzhanov Institute of Structural Macrokinetics and Materials Science of Russian Academy of Sciences (ISMAN)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>15</day><month>06</month><year>2020</year></pub-date><volume>0</volume><issue>2</issue><fpage>14</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; НИТУ "МИСИС", 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">НИТУ "МИСИС"</copyright-holder><copyright-holder xml:lang="en">НИТУ "МИСИС"</copyright-holder><license xlink:href="https://powder.misis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://powder.misis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://powder.misis.ru/jour/article/view/536">https://powder.misis.ru/jour/article/view/536</self-uri><abstract><p>Представлены результаты исследований по организации синтеза волокон карбида кремния в газовой фазе с использованием порошка кремния, энергетической добавки политетрафторэтилена (ПТФЭ) и порошка полиэтилена (ПЭ) методом самораспространяющегося высокотемпературного синтеза (СВС). Для экспериментов использовали смеси стехиометрического состава. Компоненты шихты смешивали в барабане объемом 3 л с шарами из карбида вольфрама в течение 30 мин. Масса шихты составляла 500 г. Опыты проводили в промышленном реакторе СВС-30. Горение шихты состава кремний + ПТФЭ сопровождалось быстрым ростом давления от 0,5 до 4,0 МПа за время менее 1 с и относительно быстрым падением давления до 1,5 МПа в течение 1,5 мин. Скорость горения превышала 50 см/с. Установлено, что при горении происходит разброс компонентов шихты, что является следствием высокой скорости процесса и интенсивного газовыделения. Получен ватоподобный материал светло-голубого цвета, который состоит из волокон карбида кремния толщиной 100-500 нм. При горении состава кремний + ПТФЭ + ПЭ максимальное давление в реакторе достигало 3,1 МПа в течение 1 с и снизилось до 1,5 МПа за 3 мин. Скорость горения составляла около 40 см/с. Весь объем оснастки был заполнен ватоподобным карбидом кремния серо-голубого цвета и порошком SiC с равноосной формой частиц размером 0,5-3,0 мкм, объединенных в конгломераты. В переходном слое между порошком и волокнами карбида кремния образовались иглоподобные кристаллы кремния. Результаты экспериментов показали возможность получения нановолокон карбида кремния в относительно больших количествах при горении экзотермических смесей.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of studies into the gas-phase synthesis of silicon carbide fibers using silicon powder, polytetrafluoroethylene (PTFE) energy additive and polyethylene (PE) powder by self-propagating high-temperature synthesis (SHS). Stoichiometric mixtures were used for experiments. Green mixture components were mixed in a 3 liter drum with tungsten carbide balls for 30 min. The green mixture weight was 500 g. Experiments were conducted in the SHS-30 industrial reactor. Silicon + PTFE mixture combustion was accompanied by a rapid increase in pressure from 0.5 to 4.0 MPa in less than 1 s, and a relatively rapid pressure drop to 1.5 MPa in 1.5 min. The combustion rate was more than 50 cm/s. It was established that there was a spread of the mixture components during the combustion due to the high combustion rate and intense gas emission. A cottonlike material of light blue color was obtained; it consisted of 100-500 nm thick silicon carbide fibers. The maximum pressure in the reactor reached 3.1 MPa in 1 s during the silicon + PTFE + PE combustion and then decreased to 1.5 MPa in 3 min. The combustion rate was about 40 cm/s. The entire volume of the reactor was filled with blue-grey cotton-like silicon carbide and SiC powder with equiaxed 0.5-3,0 μm particles merged into conglomerates. Needle-like silicon crystals were formed in the transition layer between the powder and silicon carbide fibers. The results of experiments proved the possibility of obtaining silicon carbide nanofibers in relatively large quantities during the combustion of exothermic mixtures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>волокна</kwd><kwd>карбид кремния</kwd><kwd>горение</kwd><kwd>синтез</kwd><kwd>газовая фаза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fibers</kwd><kwd>silicon carbide</kwd><kwd>combustion</kwd><kwd>synthesis</kwd><kwd>gas phase</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">Abderrazak H, Hmida E. Silicon earbide: Synthesis and properties. In: Properties and Applications of Silicon Carbide (Ed. by R. Gerhardt). Rijeka, Croatia: Publ. In Tech., 2011. Р. 361—388.</mixed-citation><mixed-citation xml:lang="en">Abderrazak H, Hmida E. Silicon earbide: Synthesis and properties. In: Properties and Applications of Silicon Carbide (Ed. by R. Gerhardt). 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