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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2018-84-6-52-57</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-758</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>МЕХАНИКА МАТЕРИАЛА: ПРОЧНОСТЬ, РЕСУРС, БЕЗОПАСНОСТЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS MECHANICS: STRENGTH, DURABILITY, SAFETY</subject></subj-group></article-categories><title-group><article-title>Исследование трибологических свойств нанокомпозита Al2O3 + Г, полученного методом плазменно-искрового спекания</article-title><trans-title-group xml:lang="en"><trans-title>Friction and wear of nanocomposite Al2O3 + G processed by spark plasma sintering</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>Столяров</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stolyarov</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">vlstol@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>Мисоченко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Misochenko</surname><given-names>A. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьев</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoriev</surname><given-names>E. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жолнин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zholnin</surname><given-names>A. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кляцкина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyatskina</surname><given-names>E. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт машиноведения им. А. А. Благонравова РАН, Москва;&#13;
Национальный исследовательский ядерный университет МИФИ, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechanical Engineering Research Institute of Russian Academy of Sciences;&#13;
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет МИФИ, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Политехнический университет Валенсии, Валенсия</institution><country>Испания</country></aff><aff xml:lang="en"><institution>Instituto de Tecnología de Materiales, Universitat Politècnica de València, Valencia</institution><country>Spain</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>01</day><month>08</month><year>2018</year></pub-date><volume>84</volume><issue>6</issue><fpage>52</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Столяров В.В., Мисоченко А.А., Григорьев Е.Г., Жолнин А.Г., Кляцкина Е.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Столяров В.В., Мисоченко А.А., Григорьев Е.Г., Жолнин А.Г., Кляцкина Е.А.</copyright-holder><copyright-holder xml:lang="en">Stolyarov V.V., Misochenko A.A., Grigoriev E.G., Zholnin A.G., Klyatskina E.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://www.zldm.ru/jour/article/view/758">https://www.zldm.ru/jour/article/view/758</self-uri><abstract><p>Исследовано влияние содержания аллотропной модификации углерода — графена (Г) в интервале концентраций 0,5 – 2,0 % вес. на трибологические, прочностные и структурные характеристики нанокомпозита оксид алюминия — графен (Al2O3/Г). Нанокомпозит получен методом плазменно-искрового спекания при температуре 1550 °C в течение 10 мин и давлении 50 МПа смеси нанопорошков, предварительно подвергнутых ультразвуковому диспергированию в органическом растворителе. Представлены результаты его испытаний на трение и износ без смазки на трибометре под нагрузкой 20 Н при комнатной температуре — при круговом движении рубинового шарика-индентора по диску, кинетического индентирования с определением нанотвердости и модуля упругости, а также наблюдений структуры поверхности изломов и дорожек трения в растровом микроскопе. Для определения микроструктуры в объеме нанокомпозита и подтверждения термической стабильности графена в процессе плазменно-искрового спекания использованы методы просвечивающей электронной микроскопии тонких фольг в темном и светлом полях и Рамановской спектроскопии соответственно. Показано, что введение графена способствует повышению микро- и нанотвердости, модуля упругости, износостойкости на два-три порядка и небольшому уменьшению коэффициента трения. Повышение содержания графена до 2 % вес. изменяет механизм износа от хрупкого отрывом до вязкого сдвигом, что связано с усилением связи матричных зерен и наличием агломератов. Подтверждено отсутствие деградации графена и сохранение его термической стабильности. Морфология частиц графена свидетельствует об их преимущественном расположении внутри зерен корунда и более редком — на границах зерен.</p></abstract><trans-abstract xml:lang="en"><p>The effect of allotropic carbon modification content, graphene (G), in the range of 0.5 – 2.0 wt.% on tribological, strength and structural characteristics of Al2O3/G nanocomposite processed by 10-min plasma spark sintering (pressure 50 MPa, temperature 1550 °C) of nanopowder mixture previously subjected to ultrasonic dispersion in organic solvent is studied. The results of tests for friction and wear without lubricant on a tribometer under a load of 20 N at room temperature and roundabout motion of a ruby ball penetrator on a disk are presented along with data on kinetic indentation with determination of the nanohardness and elastic module and observations of the fracture surface structure and friction track using a scanning microscope. Methods of the transmission electron microscopy of thin foils in dark and bright fields and Raman spectroscopy, respectively, were used to determine the microstructure in the bulk of a nanocomposite and prove the graphene thermal stability during plasma spark sintering. It is shown that introduction of graphene contributes to the increase of micro- and nanohardness, elastic modulus, wear resistance by two or three orders of magnitude and a slight decrease in the coefficient of friction. Increase in graphene content to 2 wt.% changes the wear mechanism from brittle breakage to viscous shear due to strengthening in coupling of matrix grains and presnrce of agglomerates. Lack of degradation and retention of graphene thermal stability are proved. The morphology of graphene particles indicates to their preferential arrangement inside the corundum grains and more rarely — on the grain boundaries.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композит</kwd><kwd>графен</kwd><kwd>корунд</kwd><kwd>спекание</kwd><kwd>структура</kwd><kwd>трение</kwd><kwd>износ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite</kwd><kwd>graphene</kwd><kwd>alumina</kwd><kwd>sintering</kwd><kwd>structure</kwd><kwd>friction</kwd><kwd>wear</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Программы повышения конкурентоспособности НИЯУ МИФИ, контракт с Министерством образования и науки РФ № 02.А03.21.0005, 27.08.2013 и РНФ (проект № 16-19-10213)</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">Novoselov K. S. et al. 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