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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">nuc</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НЯЦ РК</journal-title><trans-title-group xml:lang="en"><trans-title>NNC RK Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7516</issn><issn pub-type="epub">1729-7885</issn><publisher><publisher-name>Национальный ядерный центр Республики Казахстан</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52676/1729-7885-2018-4-134-138</article-id><article-id custom-type="elpub" pub-id-type="custom">nuc-177</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>Статьи</subject></subj-group></article-categories><title-group><article-title>СПОСОБ СТАБИЛИЗАЦИИ ДАВЛЕНИЯ ВОДЯНОГО ПАРА ПРИ ПРОВЕДЕНИИ ВЫСОКОТЕМПЕРАТУРНЫХ КОРРОЗИОННЫХ ИСПЫТАНИЙ ГРАФИТОВЫХ МАТЕРИАЛОВ ЯР И ТЯР</article-title><trans-title-group xml:lang="en"><trans-title>THE METHOD OF STABILIZATION OF WATER PRESSURE DURING THE HIGH-TEMPERATURE CORROSION TESTS OF GRAPHITE MATERIALS OF FISSION AND FUSION REACTORS</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>Чихрай</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chikhray</surname><given-names>Yevgeniy</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Almaty</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>Шестаков</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Shestakov</surname><given-names>Vladimir</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Almaty</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>Аскербеков</surname><given-names>С. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Askerbekov</surname><given-names>Saulet</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Almaty</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>Кенжина</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kenzhina</surname><given-names>Inesh</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алматы</p></bio><bio xml:lang="en"><p>Almaty</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">НИИЭТФ КазНУ им. аль-Фараби<country>Казахстан</country></aff><aff xml:lang="en">IETP of al-Farabi KazNU<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">РГП «Институт ядерной физики» Министерства энергетики РК<country>Казахстан</country></aff><aff xml:lang="en">RSE “Institute of Nuclear Physics” under the Ministry of Energy of the RK<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2018</year></pub-date><volume>0</volume><issue>4</issue><fpage>134</fpage><lpage>138</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чихрай Е.В., Шестаков В.П., Аскербеков С.К., Кенжина И.Е., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Чихрай Е.В., Шестаков В.П., Аскербеков С.К., Кенжина И.Е.</copyright-holder><copyright-holder xml:lang="en">Chikhray Y., Shestakov V., Askerbekov S., Kenzhina I.</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://journals.nnc.kz/jour/article/view/177">https://journals.nnc.kz/jour/article/view/177</self-uri><abstract><p>Важной технической проблемой при исследовании высокотемпературной коррозии графитовых материалов и SiC-C структур в парах воды в вакууме является обеспечение стабильного парциального давления (0,001–1,0 Па) водяного пара в зоне образца. Т.к. температура в зоне образца может достигать 1400–1700 К, то расположить там датчики измерения давления пара не представляется возможным. В работе предлагается способ использования металлических поверхностей существующих или специально внесенных элементов вакуумной системы (ресиверы, резервуары, трубопроводы) в качестве источника воды при их управляемом нагреве. С помощью компьютерной модели газо-вакуумной среды установки коррозии рассчитывается соотношение давлений воды в точке расположения образца и в точке пробозабора масс-анализатора. Полученное отношение и аналоговый сигнал массанализатора (пик воды, 18 а.е.м.) используются для пропорционально-интегрально-дифференцирующего (ПИД) регулирования температуры десорбции для достижения требуемого давления пара.</p></abstract><trans-abstract xml:lang="en"><p>An important technical problem in the study of high-temperature corrosion of graphite materials and SiC-C structures in water vapor in vacuum is to ensure a stable partial pressure (0.001–1.0 Pa) of water vapor in the sample zone. Since the temperature in the sample zone can reach 1400–1700 K, then it is not possible to locate sensors for measuring the vapor pressure there. The paper proposes a method of using metal surfaces of existing or specially introduced elements of a vacuum system (receivers, tanks, pipelines) as a source of water for their controlled heating. Using the computer model of the gas-vacuum environment of the corrosion plant, the ratio of water pressures at the point of sample location and at the point of sampling of the mass analyzer is calculated. The resulting ratio and the analog signal of the mass analyzer (water peak, 18 amu) are used for PID control of the desorption temperature to achieve the required vapor pressure.</p></trans-abstract><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках гранта AP05132169 Министерства образования и науки Республики Казахстан.</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">Chikhray Y. et al. Corrosion test of HTGR graphite with SiC coating //8th International Topical Meeting on High Temperature Reactor Technology, HTR 2016. – American Nuclear Society, 2016.</mixed-citation><mixed-citation xml:lang="en">Chikhray Y. et al. 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