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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">nguphys</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский физический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>SIBERIAN JOURNAL OF PHYSICS</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9447</issn><publisher><publisher-name>Новосибирский государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25205/2541-9447-2023-18-3-61-70</article-id><article-id custom-type="elpub" pub-id-type="custom">nguphys-274</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>ФИЗИКА ТВЕРДОГО ТЕЛА, ПОЛУПРОВОДНИКОВ, НАНОСТРУКТУР</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SOLID-STATE AND SEMICONDUCTOR PHYSICS, PHYSICS OF NANOSTRUCTURES</subject></subj-group></article-categories><title-group><article-title>Температурная зависимость удельной теплоемкости стекол, полученных на основе Na2B4O7 + Bi2O3</article-title><trans-title-group xml:lang="en"><trans-title>Temperature Dependence of the Specific Heat Capacity Glasses Produced Based on Na2B4O7 + Bi2O3</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>Кучакшоев</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuchakshoev</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давлатназар Сохибназарович Кучакшоев, соискатель</p><p>Душанбе</p></bio><bio xml:lang="en"><p>Davlatnazar S. Kuchakshoev, Senior Researcher</p><p>Dushanbe</p></bio><email xlink:type="simple">k.davlat@mail.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>Джабаров</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhaborov</surname><given-names>А. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Гулямович Джабаров, кандидат физико-математических наук</p><p>Душанбе</p></bio><bio xml:lang="en"><p>Alexander G. Dzhabаrov, Candidate of Physical and Mathematical Sciences</p><p>Dushanbe</p></bio><email xlink:type="simple">jabarovag@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>Холов</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kholov</surname><given-names>А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алимахмад Холов, кандидат химических наук</p><p>Душанбе</p></bio><bio xml:lang="en"><p>Alimakhmad Kholov, Candidate of Chemical Sciences</p><p>Dushanbe</p></bio><email xlink:type="simple">alikholov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Физико-технический институт им. С. У. Умарова НАНТ</institution><country>Таджикистан</country></aff><aff xml:lang="en"><institution>S. U. Umarov Physical-Technical Institute of the National Academy of Sciences of Tajikistan</institution><country>Tajikistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>22</day><month>02</month><year>2024</year></pub-date><volume>18</volume><issue>3</issue><fpage>61</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кучакшоев Д.С., Джабаров А.Г., Холов А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Кучакшоев Д.С., Джабаров А.Г., Холов А.</copyright-holder><copyright-holder xml:lang="en">Kuchakshoev D.S., Dzhaborov А.G., Kholov А.</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://nguphys.elpub.ru/jour/article/view/274">https://nguphys.elpub.ru/jour/article/view/274</self-uri><abstract><p>В данной работе экспериментально в процессе охлаждения исследована температурная зависимость удельной теплоемкости стекол, полученных на основе соединения Na2B4O7 + Bi2O3 с разной концентрацией тетрабората натрия и оксида висмута в исходной смеси. Экспериментально показано, что с изменением концентрации исходных веществ меняется удельная теплоемкость образцов, наблюдается сдвиг максимумов в сторону низких температур с увеличением концентрации оксида висмута. Дана физическая интерпретация природы максимума на температурной зависимости удельной теплоемкости.</p></abstract><trans-abstract xml:lang="en"><p>In this work, the temperature dependence of the specific heat capacity of glasses obtained on the basis of the Na2B4O7 + Bi2O3 compound with different concentrations of sodium tetraborate and bismuth oxide in the initial mixture was studied experimentally during cooling. It has been experimentally shown that with a change in the concentration of the initial substances, the specific heat capacity of the sample’s changes, and a shift of the maxima towards low temperatures is observed with an increase in the concentration of bismuth oxide. A physical interpretation of the nature of the maximum on the temperature dependence of the specific heat is given.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>удельная теплоемкость</kwd><kwd>стекло</kwd><kwd>температура</kwd><kwd>скорость охлаждения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>specific heat capacity</kwd><kwd>glass</kwd><kwd>temperature</kwd><kwd>cooling rate</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">Гулоян Ю. А. Технология стекла и стеклоизделий: Учебник для средних специальных учебных заведений, систем профессионально-технического и производственного обучения. Владимир: Транзит-Икс, 2003. 480 с.</mixed-citation><mixed-citation xml:lang="en">Guloyan Yu. A. Technology of glass and glass products: a textbook for secondary specialized educational institutions, systems of vocational and industrial training. Vladimir, Transit-X, 2003, 480 p. 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