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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Frontier Materials &amp; Technologies</journal-id><journal-title-group><journal-title xml:lang="en">Frontier Materials &amp; Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Frontier Materials &amp; Technologies</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2782-4039</issn><issn publication-format="electronic">2782-6074</issn><publisher><publisher-name xml:lang="en">Togliatti State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">215</article-id><article-id pub-id-type="doi">10.18323/2073-5073-2017-3-53-58</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Technical Sciences</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Технические науки</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">THE TECHNOLOGY OF PRODUCING AND CERTIFICATION OF Ti-Nb-Zr ALLOYS PERMEABLE FOAM MATERIALS OF MEDICAL PURPOSE</article-title><trans-title-group xml:lang="ru"><trans-title>ТЕХНОЛОГИЯ ПОЛУЧЕНИЯ И АТТЕСТАЦИЯ ПРОНИЦАЕМЫХ ПЕНОМАТЕРИАЛОВ ИЗ СПЛАВОВ Ti-Nb-Zr МЕДИЦИНСКОГО НАЗНАЧЕНИЯ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kazakbiev</surname><given-names>Alibek Magaramovich</given-names></name><name xml:lang="ru"><surname>Казакбиев</surname><given-names>Алибек Магарамович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>postgraduate student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>kazakbiev@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korobkova</surname><given-names>Anastasia Anatolievna</given-names></name><name xml:lang="ru"><surname>Коробкова</surname><given-names>Анастасия Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>postgraduate student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>nastyakorobkova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sheremetyev</surname><given-names>Vadim Alekseevich</given-names></name><name xml:lang="ru"><surname>Шереметьев</surname><given-names>Вадим Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Engineering), researcher</p></bio><bio xml:lang="ru"><p>кандидат технических наук, научный сотрудник</p></bio><email>vadim.sheremetyev@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dubinskiy</surname><given-names>Sergey Mikhailovich</given-names></name><name xml:lang="ru"><surname>Дубинский</surname><given-names>Сергей Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Engineering), Associate Professor</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><email>sdubinskiy@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prokoshkin</surname><given-names>Sergey Dmitrievich</given-names></name><name xml:lang="ru"><surname>Прокошкин</surname><given-names>Сергей Дмитриевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Sciences (Physics and Mathematics), Professor, chief researcher</p></bio><bio xml:lang="ru"><p>доктор физико-математических наук, профессор, главный научный сотрудник</p></bio><email>prokoshkin@tmo.misis.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National University of Science and Technology “MISiS”, Moscow</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский технологический университет «МИСиС», Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-09-29" publication-format="electronic"><day>29</day><month>09</month><year>2017</year></pub-date><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>53</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2022-03-14"><day>14</day><month>03</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-03-14"><day>14</day><month>03</month><year>2022</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://vektornaukitech.ru/jour/article/view/215">https://vektornaukitech.ru/jour/article/view/215</self-uri><abstract xml:lang="en"><p>High requirements for biochemical and biomechanical compatibility are applied to the promising alloys to be used as materials for intraosseous implants. Among other things, it involves a number of properties ensuring the accelerated and smooth process of implantation into the bone tissue, as well as its reliable fixation and prevention of implant rejection. Favorable mechanical behavior can be achieved due to the similarity of mechanical properties of an implant and the bone tissue. During the deformation, the bone tissue manifests the mechanical hysteresis. Among the metallic materials, superelastic shape memory Ti-20.8Nb-5.5Zr (in at. %) alloy demonstrates the similar mechanical behavior. However, the higher Young’s modulus of this alloy ensures its biomechanical compatibility insufficiently. Due to the creation of a porous structure, it is possible to decrease radically Young’s modulus. For this purpose, a powder with spherical particles of less than 50 μm in size was produced from the ingot of this composition. Then the powder was uniformly mixed with the blowing agent – the polymethylmethacrylate powder (PMMA) in the form of spherical particles no greater than 250 μm. The mixture of powders was subjected to the double-action compacting and subsequent pyrolysis. In the pyrolysis process, the polymer component was decomposed into gaseous components. As the result of pyrolysis, a porous semi-product was produced from the metallic powder with pores. To strengthen metal particles bonds, the sintering was performed. The final porosity was achieved in the samples by varying the volume ratio of the blowing agent.</p><p>It is established that the pre-defined porosity is close to the resulting porosity and the pores are distributed homogeneously within the volume. When increasing the porosity, Young’s modulus decreases, the permeability coefficient increases, and the strength characteristics decrease. At the same time, the calculated mechanical characteristics of samples of various porosities remain within the permissible limits of biomechanical compatibility.</p></abstract><trans-abstract xml:lang="ru"><p>К перспективным сплавам для использования в качестве материала внутрикостных имплантатов предъявляются требования высокой биохимической и биомеханической совместимости. Это означает в том числе комплекс свойств, обеспечивающих ускоренное вживление имплантата в костную ткань, его надежную фиксацию и предотвращение последующего отторжения. Благоприятное механическое поведение может быть обеспечено за счет схожести механических параметров имплантата и костной ткани. Костная ткань проявляет механический гистерезис при деформации. Среди металлических материалов подобным поведением при деформации обладает сверхупругий сплав с памятью формы Ti–20,8Nb–5,5Zr (в ат. %). Однако относительно высокий модуль Юнга этого сплава в недостаточной степени обеспечивает его биомеханическую совместимость. Благодаря созданию пористой структуры удается радикально уменьшить модуль Юнга. Для этого из слитка данного состава был изготовлен порошок со сферичными частицами размером менее 50 мкм. Далее металлический порошок равномерно перемешали с порообразователем – порошком полиметилметакрилата (ПММА) в виде сферичных частиц размером не более 250 мкм. Смесь порошков подвергали двухстороннему прессованию и последующему пиролизу. В процессе пиролиза полимерный компонент разлагался на газообразные компоненты. В результате пиролиза получали полупродукт из металлического порошка с порами. Для укрепления связи между металлическими частицами проводили спекание. Варьируя объемную долю порообразователя, задавали конечную пористость в образцах.</p><p>Установлено, что задаваемая пористость близка к получаемой пористости. При этом наблюдается равномерное распределение пор по объему. При увеличении пористости отмечается снижение модуля Юнга, повышение коэффициента проницаемости, снижение прочностных характеристик. При этом рассчитанные механические характеристики образцов различной пористости лежат в допустимых пределах биомеханической совместимости.</p></trans-abstract><kwd-group xml:lang="en"><kwd>titanium alloys</kwd><kwd>medical alloys</kwd><kwd>biocompatibility</kwd><kwd>metal foams</kwd><kwd>permeability</kwd><kwd>morphology of pores</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>титановые сплавы</kwd><kwd>медицинские сплавы</kwd><kwd>биосовместимость</kwd><kwd>пеноматериалы</kwd><kwd>проницаемость</kwd><kwd>морфология пор</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена по материалам докладов участников VIII Международной школы «Физическое материаловедение» с элементами научной школы для молодежи, Тольятти, 3–12 сентября 2017 г. 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