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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-2024-5-13-18</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-918</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>Процессы получения и свойства порошков</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Production Processes and Properties of Powders</subject></subj-group></article-categories><title-group><article-title>Синтез дисперсных порошков вольфрама с низким содержанием примесей</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis of fine tungsten powders with low impurity content</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-1150-8515</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анкудинов</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ankudinov</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Борисович Анкудинов – ст. науч. сотрудник лаборатории «Физикохимия поверхности и ультрадисперсных порошковых материалов»</p><p>Россия, 119334, г. Москва, Ленинский пр-т, 49</p></bio><bio xml:lang="en"><p>Aleksey B. Ankudinov – Senior Research Scientist at the Laboratory of Physical Chemistry of Surfaces and Ultrafine Powder Materials</p><p>49 Leninskiy Prosp., Moscow 119334, Russia</p></bio><email xlink:type="simple">a-58@bk.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/0009-0004-5507-7467</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евстратов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Evstratov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Викторович Евстратов – к.т.н., ст. науч. сотрудник лаборатории «Физикохимия поверхности и ультрадисперсных порошковых материалов»</p><p>Россия, 119334, г. Москва, Ленинский пр-т, 49</p></bio><bio xml:lang="en"><p>Evgeniy V. Evstratov – Cand. Sci. (Eng.), Senior Research Scientist at the Laboratory of Physical Chemistry of Surfaces and Ultrafine Powder Materials</p><p>49 Leninskiy Prosp., Moscow 119334, Russia</p></bio><email xlink:type="simple">evev@imet.ac.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/0000-0001-6147-5753</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алымов</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Alymov</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Иванович Алымов – д.т.н, профессор, член-корр. РАН, заведующий лабораторией «Физикохимия поверхности и ультра­дисперсных порошковых материалов»</p><p>Россия, 119334, г. Москва, Ленинский пр-т, 49</p></bio><bio xml:lang="en"><p>Mikhail I. Alymov – Dr. Sci. (Eng.), Professor, Corresponding Member of the Russian Academy of Sciences, Head at the Laboratory of Physical Chemistry of Surfaces and Ultrafine Powder Materials</p><p>49 Leninskiy Prosp., Moscow 119334, Russia</p></bio><email xlink:type="simple">malymov@imet.ac.ru</email><xref ref-type="aff" rid="aff-1"/></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>A.A. Baikov Institute of Metallurgy and Materials Science Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2024</year></pub-date><volume>18</volume><issue>5</issue><fpage>13</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; НИТУ "МИСИС", 2024</copyright-statement><copyright-year>2024</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/918">https://powder.misis.ru/jour/article/view/918</self-uri><abstract><p>Для синтеза дисперсных вольфрамовых порошков с низким содержанием кислорода использован химико-металлургический метод. Порошок вольфрама получали водородным восстановлением порошков вольфрамового ангидрида WO3 . Водород пропускали через колонну с гидроксидом калия для осушения. В первой серии экспериментов при температурах 650, 800 и 950 °С восстанавливали три фракции порошка вольфрамового ангидрида WO3 марки Ч: 64–100, 40–50 и менее 25 мкм. Во второй серии экспериментов порошок вольфрама получали водородным восстановлением трех разных порошков вольфрамового ангидрида WO3 марок Ч, ХЧ, «Тумелом». Получили порошки вольфрама с различным содержанием кислорода (0,043–2,18 мас. %) и средним размером частиц 35–345 нм. Рентгенофазовый анализ показал чистый вольфрам. Минимальное содержание кислорода (0,043 мас. %) в порошке вольфрама получено при восстановлении оксида вольфрама марки ХЧ при температуре 950 °С в течение 3 ч. </p></abstract><trans-abstract xml:lang="en"><p>A chemical-metallurgical method was used to synthesize fine tungsten powders with low oxygen content. The tungsten powders were obtained by hydrogen reduction of tungsten trioxide (WO3 ) powders. Hydrogen was passed through a column with potassium hydroxide for drying. In the first series of experiments, three fractions of WO3 powder of grade “P” 64–100 µm, 40–50 µm, and less than 25 µm were reduced at temperatures of 650, 800, and 950 °C. In the second series of experiments, tungsten powders were obtained by hydrogen reduction of three different WO3 powders of grades “P”, “CP”, and “Tumelom”. The resulting tungsten powders had varying oxygen contents (0.043–2.18 wt. %) and average particle sizes ranging from 35 to 345 nm. X-ray diffraction analysis confirmed the presence of pure tungsten. The minimum oxygen content (0.043 wt. %) in the tungsten powder was achieved by reducing tungsten oxide of grade “CP” at 950 °C for 3 h.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синтез</kwd><kwd>вольфрам</kwd><kwd>порошок</kwd><kwd>восстановление</kwd><kwd>температура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>synthesis</kwd><kwd>tungsten</kwd><kwd>powder</kwd><kwd>reduction</kwd><kwd>temperature</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания 075-00320-24-00.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of state assignment 075-00320-24-00.</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">Lassner E., Schubert W.‑D. Tungsten: Properties, che­mistry, technology of the element, alloys, and chemical compounds. 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