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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Melts</journal-id><journal-title-group><journal-title xml:lang="en">Melts</journal-title><trans-title-group xml:lang="ru"><trans-title>Расплавы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0235-0106</issn><issn publication-format="electronic">3034-5715</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">662126</article-id><article-id pub-id-type="doi">10.31857/S0235010624010016</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">On measurement of the dependence of the effective conductivity of liquid metals with solid particles on the volume fraction of the impurity</article-title><trans-title-group xml:lang="ru"><trans-title>Об измерении зависимости эффективной проводимости жидких металлов с твердыми частицами от объемной доли примеси</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Losev</surname><given-names>G. L.</given-names></name><name xml:lang="ru"><surname>Лосев</surname><given-names>Г. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>losev.g@icmm.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Okatiev</surname><given-names>R. S.</given-names></name><name xml:lang="ru"><surname>Окатьев</surname><given-names>Р. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>losev.g@icmm.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Continuous Media Mechanics, Ural Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт механики сплошных сред Уральского отделения РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-06-14" publication-format="electronic"><day>14</day><month>06</month><year>2024</year></pub-date><issue>1</issue><fpage>3</fpage><lpage>16</lpage><history><date date-type="received" iso-8601-date="2025-02-25"><day>25</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0235-0106/article/view/662126">https://journals.eco-vector.com/0235-0106/article/view/662126</self-uri><abstract xml:lang="en"><p>A method has been proposed and implemented for experimentally measuring the effective conductivity of a limited volume of a metal melt with an admixture of solid well-conducting particles depending on the volume fraction of the impurity in the range from zero to seven percent. A comparison is made with known theoretical dependencies for effective conductivity. It is shown that none of the considered models provides even qualitative agreement with experiment. On the experimental curve, several sections can be distinguished with different dependences of conductivity on the volume fraction of the impurity. The experimental data are approximated by analytical functions, which make it possible to use the results obtained for numerical modeling of MHD processes.</p></abstract><trans-abstract xml:lang="ru"><p>Предложен и реализован способ экспериментального измерения эффективной проводимости ограниченного объема металлического расплава с примесью твердых хорошо проводящих частиц в зависимости от объемной доли примеси в диапазоне от нуля до семи процентов. Проведено сравнение с известными теоретическими зависимостями для эффективной проводимости. Показано, что ни одна из рассмотренных моделей не обеспечивает даже качественного согласия с экспериментом. На экспериментальной кривой можно выделить несколько участков с различными зависимостями проводимости от объемной доли примеси. Экспериментальные данные аппроксимированы аналитическими функциями, позволяющими использовать полученные результаты для численного моделирования МГД-процессов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>non-uniform electrical conductivity</kwd><kwd>conductivity measurement</kwd><kwd>heterogeneous media</kwd><kwd>liquid metal</kwd><kwd>dispersed impurity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>неоднородная электропроводность</kwd><kwd>измерение</kwd><kwd>проводимость</kwd><kwd>гетерогенная среда</kwd><kwd>жидкий металл</kwd><kwd>дисперсная примесь</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научного фонд (гранд)</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation (grand)</institution></institution-wrap></funding-source><award-id>22-19-20106</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Пермский край</institution></institution-wrap><institution-wrap><institution xml:lang="en">Perm region</institution></institution-wrap></funding-source><award-id>22-19-20106</award-id></award-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда и Пермского края № 22-19-20106, https://rscf.ru/project/22-19-20106/.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Šċepanskis M., Jakoviċs A., Nacke B. 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