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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2020-64-2-233-237</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-875</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>ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Электрические свойства композитов на основе порошков железа, капсулированных оксидным покрытием</article-title><trans-title-group xml:lang="en"><trans-title>Electrical properties of iron powder-based composites encapsulated by the oxide coating</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>Вечер</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Vetcher</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вечер Александр Константинович – ст. науч. сотрудник.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Vetcher Alexander K. – Senior researcher.</p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">vetcher@physics.by</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>Галяс</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Galyas</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галяс Анатолий Иванович – канд. физ.-мат. наук, ст. науч. сотрудник.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Galyas Anatoly I. – Ph. D. (Physics and Mathematics), Senior researcher.</p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">demiden@physics.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Говор</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Govor</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Говор Геннадий Антонович – д-р физ.-мат. наук, профессор, гл. науч. сотрудник.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Govor Gennady A. – D. Sc. (Physics and Mathematics), Professor, Сhief researcher.</p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">govor@physics.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Янушкевич</surname><given-names>К. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yanushkevich</surname><given-names>K. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Янушкевич Казимир Иосифович – д-р физ.-мат. наук, заведующий лабораторией.</p><p>ул. П. Бровки, 19, 220072, Минск</p></bio><bio xml:lang="en"><p>Yanushkevich Kazimir I. – D. Sc. (Physics and Mathematics), Head of the Laboratory.</p><p>19, P. Brovka Str., 220072, Minsk</p></bio><email xlink:type="simple">kazimir@physics.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-практический центр Национальной академии наук Беларуси по материаловедению</institution></aff><aff xml:lang="en"><institution>Scientific and Practical Material Research Center of the National Academy of Sciences of Belarus,</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-практический центр Национальной академии наук Беларуси по материаловедению</institution></aff><aff xml:lang="en"><institution>Scientific and Practical Material Research Center of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>17</day><month>05</month><year>2020</year></pub-date><volume>64</volume><issue>2</issue><fpage>233</fpage><lpage>237</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вечер А.К., Галяс А.И., Говор Г.А., Янушкевич К.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Вечер А.К., Галяс А.И., Говор Г.А., Янушкевич К.И.</copyright-holder><copyright-holder xml:lang="en">Vetcher A.K., Galyas A.I., Govor G.A., Yanushkevich K.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://doklady.belnauka.by/jour/article/view/875">https://doklady.belnauka.by/jour/article/view/875</self-uri><abstract><p>Исследованы электрические характеристики композиционных материалов на основе порошков железа ASC 100.29 (Швеция). Поверхность порошков капсулирована изоляционным ферритным покрытием. Для проведения исследований удельной электропроводности и термоЭДС методом прессования изготавливались сердечники, из которых вырезались образцы. Результаты показывают, что уменьшение величины электросопротивления с ростом температуры обусловлено изменением контакта между зернами в образце. Изменение границ между зернами (или доменами) создает условия образования нового магнона, что оказывает влияние на величину коэффициента термоЭДС. Результаты исследований могут быть использованы при синтезе композитов с заданными электромагнитными характеристиками для практических применений.</p></abstract><trans-abstract xml:lang="en"><p>The electrical characteristics of composite materials based on iron powders ASC 100.29 (Sweden) were investigated. The surface of powders is encapsulated by an insulating ferrite coating. The conductivity and the thermopower were studied, the cores were made by the pressing method, and then the samples were cut from the cores. The results show that the decrease in the electrical resistance with increasing temperature is due to a change in the contact between the grains in the sample. A change in the boundaries between grains (or domains) creates the conditions for formation of a new magnon, which affects the thermopower coefficient value. The research results can be used in the synthesis of composites with specified electromagnetic characteristics for practical applications.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композиционный материал</kwd><kwd>железный порошок</kwd><kwd>ферритовое изоляционное покрытие</kwd><kwd>удельная электропроводность</kwd><kwd>термоЭДС</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite material</kwd><kwd>iron powder</kwd><kwd>ferrite insulating coating</kwd><kwd>the conductivity</kwd><kwd>the thermopower</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований в рамках совместного проекта БРФФИ–Узбекистан (Т19УЗБГ-011).</funding-statement><funding-statement xml:lang="en">This work was financially supported by the Belarusian Republican Foundation for Fundamental Research as part of the joint project BRFFR–Uzbekistan (Т19УЗБГ-011).</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">Говор, Г. 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