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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">powder</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Порошковая металлургия и функциональные покрытия</journal-title><trans-title-group xml:lang="en"><trans-title>Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-308X</issn><issn pub-type="epub">2412-8767</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1997-308X-2025-5-60-69</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-1039</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>Тугоплавкие, керамические и композиционные материалы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Refractory, Ceramic, and Composite Materials</subject></subj-group></article-categories><title-group><article-title>Влияние температуры электроискрового спекания на структуру и свойства алюмооксидной керамики, содержащей гексаалюминат бария</article-title><trans-title-group xml:lang="en"><trans-title>Effect of spark plasma sintering temperature on the structure and properties of alumina ceramics containing barium hexaaluminate</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5482-3537</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антропова</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Antropova</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кристина Александровна Антропова – мл. науч. сотрудник научно-исследовательской лаборатории физико-химических технологий и функциональных материалов</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Kristina A. Antropova – Junior Researcher, Research Laboratory of Physical and Chemical Technologies and Functional Materials</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">antropova.2017@stud.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5603-7852</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черкасова</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherkasova</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нина Юрьевна Черкасова – к.т.н., ст. науч. сотрудник научно-исследовательской лаборатории физико-химических технологий и функциональных материалов</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Nina Yu. Cherkasova – Cand. Sci. (Eng.), Senior Researcher, Research Laboratory of Physical and Chemical Technologies and Functional Materials</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">cherkasova.2013@corp.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7619-525X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александрова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Сергеевна Александрова – мл. науч. сотрудник научно-исследовательской лаборатории физико-химических технологий и функциональных материалов</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Natalya S. Aleksandrova – Junior Researcher, Research Laboratory of Physical and Chemical Technologies and Functional Materials</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">aleksandrova.2017@corp.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4720-2876</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хабиров</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khabirov</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роман Рафаэлович Хабиров – мл. науч. сотрудник Центра технологического превосходства</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Roman R. Khabirov – Junior Researcher, Center for Technological Excellence</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">xabirov.2016@stud.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-0534-0879</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миллер</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Miller</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Андреевич Миллер – магистрант кафедры мате­риаловедения в машиностроении</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Aleksandr A. Miller – Master’s Student, Department of Materials Science in Mechanical Engineering</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">miller.2020@stud.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-8153-9118</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агафонов</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Agafonov</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Юрьевич Агафонов – магистрант кафедры материаловедения в машиностроении</p><p>Россия, 630073, г. Новосибирск, пр-т Карла Маркса, 20</p></bio><bio xml:lang="en"><p>Mikhail Yu. Agafonov – Master’s Student, Department of Materials Science in Mechanical Engineering</p><p>20 Karl Marks Prosp., Novosibirsk 630073, Russia</p></bio><email xlink:type="simple">agafonov.2020@stud.nstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новосибирский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>05</day><month>11</month><year>2025</year></pub-date><volume>19</volume><issue>5</issue><fpage>60</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; НИТУ "МИСИС", 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">НИТУ "МИСИС"</copyright-holder><copyright-holder xml:lang="en">НИТУ "МИСИС"</copyright-holder><license xlink:href="https://powder.misis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://powder.misis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://powder.misis.ru/jour/article/view/1039">https://powder.misis.ru/jour/article/view/1039</self-uri><abstract><p>Композиционная керамика на основе оксида алюминия, содержащая гексаалюминат бария, является перспективной для применения в различных областях промышленности, в том числе для изготовления сменных режущих пластин. Работ, в которых отмеченные материалы получены электроискровым спеканием, практически не наблюдается. Целью данного исследования являлась оценка влияния температуры электроискрового спекания на структуру и свойства керамики на основе оксида алюминия, содержащей гексаалюминат бария. Исследуемые материалы получены из высокодисперсных порошков оксида алюминия и оксида бария путем совместного диспергирования спиртовых суспензий, их сушки и последующего электроискрового спекания при температурах (tс ) 1500, 1550 и 1600 °С. Проводили рентгенофазовый анализ, исследования структуры методом растровой электронной микроскопии, оценку кажущейся плотности и открытой пористости методом гидростатического взвешивания. Оценивали твердость по Виккерсу и трещиностойкость методом индентирования. Зафиксировано формирование фаз α-Al2O3 и Ba0,83Al11О17,33 . Относительная плотность от теоретической алюмооксидной керамики без добавок составляет 99,72 ± 0,3 %, при формировании гексаалюмината бария – 92,45 ± 0,5 %. Средний размер зерен оксида алюминия в материале без добавки находится в диапазоне 4,27 ± 1,80 мкм, а при формировании 15 мас. % гексаалюмината бария – 1,49 ± 0,80, 1,89 ± 0,85 и 1,60 ± 0,63 мкм при tс = 1500, 1550 и 1600 °С соответственно. Размеры пластин гексаалюмината бария с ростом температуры спекания увеличиваются. При tс = 1500 °С их длина составляет 2,45 ± 0,22 мкм, а при tс = 1600 °С – 5,23 ± 0,46 мкм. Наиболее высокое значение критического коэффициента интенсивности напряжений (5,00 ± 0,10 МПа·м1/2) зафиксировано для материала, содержащего гексаалюминат бария и спеченного при tс = 1550 °С, твердость такого материала составляет 2070 ± 43 HV2 .</p></abstract><trans-abstract xml:lang="en"><p>Alumina-based composite ceramics containing barium hexaaluminate are promising for various industrial applications, including the fabrication of replaceable cutting inserts. However, reports on such materials produced by spark plasma sintering (SPS) are scarce. This study aimed to evaluate the influence of sintering temperature on the structure and properties of alumina ceramics containing barium hexaaluminate. The materials were fabricated from highly dispersed Al2O3 and BaO powders by co-dispersion in an alcohol medium, followed by drying and spark plasma sintering at 1500, 1550, and 1600 °C. X-ray diffraction, scanning electron microscopy, and hydrostatic weighing were used to determine phase composition, microstructure, apparent density, and open porosity. Vickers hardness and fracture toughness were evaluated by indentation. The formation of α-Al2O3 and Ba0.83Al11O17.33 phases was confirmed. The relative density of alumina ceramics without additive reached 99.72 ± 0.3 %, while that of ceramics containing barium hexaaluminate was 92.45 ± 0.5 %. The average Al2O3 grain size decreased from 4.27 ± 1.80 μm (without additive) to 1.49 ± 0.80, 1.89 ± 0.85, and 1.60 ± 0.63 μm at sintering temperatures of 1500, 1550, and 1600 °C, respectively. The barium hexaaluminate plates grew with increasing temperature, from 2.45 ± 0.22 μm at 1500 °C to 5.23 ± 0.46 μm at 1600 °C. The maximum fracture toughness (KIc = 5.00 ± 0.10 MPa·m1/2 ) was obtained for the material containing barium hexaaluminate sintered at 1550 °C, which also exhibited a hardness of 2070 ± 43 HV2 .</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электроискровое спекание</kwd><kwd>оксид алюминия</kwd><kwd>гексаалюминат бария</kwd><kwd>фазообразование</kwd><kwd>структура</kwd><kwd>трещиностойкость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spark plasma sintering (SPS)</kwd><kwd>alumina</kwd><kwd>barium hexaaluminate</kwd><kwd>phase formation</kwd><kwd>microstructure</kwd><kwd>fracture toughness</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда No. 24-79-00256, https://rscf.ru/project/24-79-00256/. Исследования проведены на оборудовании ЦКП «Структура, механические и физические свойства материалов» НГТУ.</funding-statement><funding-statement xml:lang="en">This research was funded by the Russian Science Foundation, grant No. 24-79-00256, https://rscf.ru/project/24-79-00256/. The experiments were carried out using the facilities of the Core Facilities Center “Structure, Mechanical and Physical Properties of Materials”, Novosibirsk State Technical University (NSTU).</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">Podzorova L.I., Volchenkova V.A., Il’icheva A.A., Andre­e­va N.A., Konovalov A.A., Penkina T.N., Pen’kova O.I. Chemical composition stability of corundum/zirconium dioxide composites in a biological media. 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