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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</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">10.29235/1561-8331-2018-54-2-154-160</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-316</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>НЕОРГАНИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INORGANIC CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>СИНТЕЗ И СВОЙСТВА НИОБИЙ- И КОБАЛЬТЗАМЕЩЕННЫХ  ТВЕРДЫХ РАСТВОРОВ ТИТАНАТА ВИСМУТА СО СТРУКТУРОЙ  СЛОИСТОГО ПЕРОВСКИТА</article-title><trans-title-group xml:lang="en"><trans-title>SYNTHESIS AND PROPERTIES OF NIOBIUM-, COBALT-SUBSTITUTED SOLID SOLUTIONS  OF BISMUTH TITANATE WITH LAYERED PEROVSKITE STRUCTURE</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>Клындюк</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyndyuk</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клындюк Андрей Иванович – канд. хим. наук, доцент.</p><p>ул. Свердлова, 13А, 220006, Минск.</p></bio><bio xml:lang="en"><p>Andrei I. Klyndyuk – Ph. D. (Chemistry), Associate  Professor.</p><p>13A, Sverdlova Str., 220006, Minsk.</p></bio><email xlink:type="simple">klyndyuk@belstu.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>Чижова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chizhova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чижова Екатерина Анатольевна – канд. хим. наук, доцент.</p><p>ул. Свердлова, 13А, 220006, Минск.</p></bio><bio xml:lang="en"><p>Ekaterina A. Chizhova – Ph. D. (Chemistry), Associate Professor.</p><p>13A, Sverdlova Str., 220006, Minsk.</p></bio><email xlink:type="simple">chizhova@belstu.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>Глинская</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Glinskaya</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глинская Анна Анатольевна – канд. хим. наук.</p><p>ул. Свердлова, 13А, 220006, Минск.</p></bio><bio xml:lang="en"><p>Anna A. Glinskaya – Ph. D. (Chemistry), Senior Lecturer.</p><p>13A, Sverdlova Str., 220006, Minsk.</p></bio><email xlink:type="simple">zatsiupa@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный технологический университет.</institution></aff><aff xml:lang="en"><institution>Belarusian State Technological University.</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2018</year></pub-date><volume>54</volume><issue>2</issue><fpage>154</fpage><lpage>160</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Клындюк А.И., Чижова Е.А., Глинская А.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Клындюк А.И., Чижова Е.А., Глинская А.А.</copyright-holder><copyright-holder xml:lang="en">Klyndyuk A.I., Chizhova E.A., Glinskaya A.A.</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://vestichem.belnauka.by/jour/article/view/316">https://vestichem.belnauka.by/jour/article/view/316</self-uri><abstract><p>Керамическим методом синтезированы твердые растворы Bi4Ti3–2xNbxCoxO12 (x = 0,05, 0,10, 0,15), изучены их кристаллическая структура, тепловое расширение, электрические и диэлектрические свойства. Установлено, что титанаты Bi4Ti3–2xNbxCoxO12 являются полупроводниками p-типа, величина электропроводности которых при низких температурах выше, а при повышенных – ниже, чем для базового титаната висмута Bi4Ti3O12. Найдено, что частичное совместное замещение титана ниобием и кобальтом в Bi4Ti3O12 приводит к увеличению размера элементарной ячейки образующихся при этом твердых растворов, снижению их температуры Кюри, уменьшению диэлектрической проницаемости и диэлектрических потерь и слабо влияет на величину их температурного коэффициента линейного расширения. Для твердых растворов Bi4Ti3,8Nb0,1Co0,1O12 и Bi4Ti3,7Nb0,15Co0,15O12 обнаружено резкое возрастание энергии активации электропроводности при переходе из сегнетоэлектрической области в параэлектрическую.</p></abstract><trans-abstract xml:lang="en"><p>The Bi4Ti3–2xNbxCoxO12 (x = 0.05, 0.10, 0.15) solid solutions have been synthesized using ceramic method, their crystal structure, thermal expansion, electrical and dielectric properties have been studied. It has been established that Bi4Ti3–2xNbxCoxO12 titanates are p-type semiconductors whose electrical conductivity at low temperatures is higher, but  at high temperatures is lower than for the base Bi4Ti3O12 bismuth titanate. It has been found that partial co-substitution of titanium by niobium and cobalt in Bi4Ti3O12 leads to the increase in the size of the unit cell of the Bi4Ti3–2xNbxCoxO12 solid solutions, a decrease in their Curie temperature, a decrease in the dielectric constant and dielectric losses, and slightly affects the magnitude of their linear thermal expansion coefficient. For Bi4Ti3.8Nb0.1Co0.1O12 and Bi4Ti3.7Nb0.15Co0.15O12 solid solutions, a sharp increase in the activation energy of electrical conductivity has been observed at the transition from the ferroelectric region to the paraelectric region.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>слоистый титанат висмута</kwd><kwd>диэлектрическая проницаемость</kwd><kwd>диэлектрические потери</kwd><kwd>электропроводность</kwd><kwd>термо-ЭДС</kwd><kwd>тепловое расширение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>layered bismuth titanate</kwd><kwd>dielectric permittivity</kwd><kwd>dielectric losses</kwd><kwd>electrical conductivity</kwd><kwd>thermo-EMF</kwd><kwd>thermal expansion</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">ГПНИ «Физическое материаловедение, новые материалы и технологии»</funding-statement><funding-statement xml:lang="en">State Program of Scientific Investigations “Physical Materials Sciencs, New Materials and Technolo- gies”</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">Dielectric relaxation and conduction mechanism of dysprosium doped barium bismuth titanate Aurivillius ceramics / T. 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