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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">10.17073/0368-0797-2015-12-884-890</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-758</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>ТЕРМОДИНАМИЧЕСКИЕ РАВНОВЕСИЯ В СИСТЕМЕ КРЕМНИСТЫЙ СПЛАВ – ШЛАК – ГАЗ</article-title><trans-title-group xml:lang="en"><trans-title>THERMODYNAMIC EQUILIBRIUM IN THE SYSTEM OF SILICON ALLOY ‒ SLAG ‒ GAS</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>Якушевич</surname><given-names>Н. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakushevich</surname><given-names>N. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор кафедры цветных металлов и химической технологии,</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>N.F. , Dr.Sci. (Eng.), Professor of Chair “Nonferrous Metallurgy and Chemical Engineering”,</p><p>42, Kirova str., Novokuznetsk, Kemerovo Region, 654007</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полях</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyakh</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры цветных металлов и химической технологии,</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Аssist. Рrofessor of Chair “Non-ferrous Metallurgy and Chemical Engineering”,</p><p>42, Kirova str., Novokuznetsk, Kemerovo Region, 654007</p></bio><email xlink:type="simple">kafcmet@sibsiu.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>Галевский</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Galevskii</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, директор Института металлургии и материаловедения,</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>G.V. , Dr. Sci. (Eng.), Professor, Head of the Chair “Non-ferrous Metallurgy and Chemical Engineering”, Director of the Institute of Metallurgy and Materials,</p><p>42, Kirova str., Novokuznetsk, Kemerovo Region, 654007</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>21</day><month>01</month><year>2016</year></pub-date><volume>58</volume><issue>12</issue><fpage>884</fpage><lpage>890</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Якушевич Н.Ф., Полях О.А., Галевский Г.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Якушевич Н.Ф., Полях О.А., Галевский Г.В.</copyright-holder><copyright-holder xml:lang="en">Yakushevich N.F., Polyakh O.A., Galevskii G.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/758">https://fermet.misis.ru/jour/article/view/758</self-uri><abstract><p>Проанализировано состояние исходных термодинамических данных базовых химических реакций взаимодействия кремния с кислородом, протекающих с образованием монооксида и диоксида кремния. В качестве базового параметра для оценки фазово-химических равновесий в системах, содержащих кислород, принимается парциальное давление кислорода в газовой фазе. Для кремнистых сплавов со значениями X|Si| = 0,1 – 1,0 в диапазоне температур 1700 – 2300 К рассчитаны равновесные значения PSiO и PO2 в газовой фазе, состоящей из кислорода и монооксида кремния. Для систем сплав – шлак – углерод – газ определено влияние активности оксида кремния в шлаковом расплаве на равновесный состав газовой фазы. Показано, что в высококремнистых сплавах (aSi &gt; 0,2) наибольшее влияние на состав газовой фазы оказывает температура. На диаграмме фазово-химических равновесий системы Si – O – C показано, что границы моновариантных равновесий SiO2 – C – газ, SiO2 – SiC – газ и SiO2 – Si – газ при уменьшении активности SiO2 в шлаковом расплаве смещаются в сторону высоких температур и при заданной температуре концентрации монооксида кремния и кислорода понижаются.</p></abstract><trans-abstract xml:lang="en"><p>The condition of the original thermodynamic data of base chemical reactions between silicon and oxygen fl owing to form carbon monoxide and silicon dioxide have been analyzed. As a base for the parameter estimation of phase and chemical equilibrium in systems containing oxygen, the oxygen partial pressure was taken in the gas phase. The equilibrium value PSiO and PO2 was calculated for silicon alloys with values X|Si| = 0.1–1.0 at temperature range 1700 – 2300 K in a gas phase consisting of oxygen and silicon monoxide. The eff ect of the silicon oxide activity in the slag melt on the equilibrium composition of the gas phase was determined for systems “alloy – slag – carbon – dioxide”. It has been shown that temperature has the greatest eff ect on the gas phase composition at high-silicon alloys (aSi &gt; 0.2). The diagram of phase and chemical equilibrium of Si – O – C shows that the boundaries of the monovariant SiO2 – C – gas, SiO2 – SiC – gas and SiO2 – Si – gas with a decrease in activity SiO2 in the melted slag are shifted toward higher temperatures and at a given temperature the concentration of silicon monoxide and oxygen are reduced.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кремнистый сплав</kwd><kwd>шлаковый расплав</kwd><kwd>активности</kwd><kwd>термодинамические равновесия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>silicon alloys</kwd><kwd>molten slag</kwd><kwd>activity</kwd><kwd>thermodynamic equilibrium</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">Термодинамические свойства индивидуальных веществ. Т. 1 – 4 / Под ред. В.П. 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