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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.2026.563P.1046</article-id><article-id custom-type="elpub" pub-id-type="custom">powder-1046</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>Пористые материалы и биоматериалы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Porous Materials and Biomaterials</subject></subj-group></article-categories><title-group><article-title>Исследование свойств электролитических порошков никеля и пористого проницаемого проката на их основе</article-title><trans-title-group xml:lang="en"><trans-title>Properties of electrolytic nickel powders and porous permeable strips produced from them</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6870-5558</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беляев</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Belyaev</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Сергеевич Беляев – к.т.н., доцент кафедры «Материаловедение, технологии материалов и термическая обработка металлов» Института физико-химических технологий и материаловедения</p><p>Россия, 603155, г. Нижний Новгород, ул. Минина, 24</p></bio><bio xml:lang="en"><p>Evgeny S. Belyaev – Cand. Sci. (Eng.), Associate Professor, Department of Materials Science, Materials Technology, and Heat Treatment of Metals, Institute of Physical and Chemical Technologies and Materials Science</p><p>24 Minin Str., Nizhny Novgorod 603155, Russia</p></bio><email xlink:type="simple">yaneck@bk.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/0009-0000-8047-5492</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сайфутдинова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Saifutdinova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алена Сергеевна Сайфутдинова – магистрант, инженер кафедры «Материаловедение, технологии материалов и термическая обработка металлов» Института физико-химических технологий и материаловедения</p><p>Россия, 603155, г. Нижний Новгород, ул. Минина, 24</p></bio><bio xml:lang="en"><p>Alena S. Saifutdinova – Master’s Student, Engineer, Department of Materials Science, Materials Technology, and Heat Treatment of Metals, Institute of Physical and Chemical Technologies and Mate­rials Science</p><p>24 Minin Str., Nizhny Novgorod 603155, Russia</p></bio><email xlink:type="simple">abatyalova@mail.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/0000-0002-4338-3414</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гетмановский</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Getmanovsky</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Андреевич Гетмановский – ст. преподаватель кафедры «Материаловедение, технологии материалов и термическая обработка металлов» Института физико-химических технологий и материаловедения</p><p>Россия, 603155, г. Нижний Новгород, ул. Минина, 24</p></bio><bio xml:lang="en"><p>Yuri A. Getmanovsky – Senior Lecturer, Department of Materials Science, Materials Technology, and Heat Treatment of Metals, Institute of Physical and Chemical Technologies and Materials Science</p><p>24 Minin Str., Nizhny Novgorod 603155, Russia</p></bio><email xlink:type="simple">getmanovskij@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородский государственный технический университет им. Р.Е. Алексеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>R.E. Alekseev Nizhny Novgorod State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>18</day><month>08</month><year>2026</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>1046</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Беляев Е.С., Сайфутдинова А.С., Гетмановский Ю.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Беляев Е.С., Сайфутдинова А.С., Гетмановский Ю.А.</copyright-holder><copyright-holder xml:lang="en">Belyaev E.S., Saifutdinova A.S., Getmanovsky Y.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://powder.misis.ru/jour/article/view/1046">https://powder.misis.ru/jour/article/view/1046</self-uri><abstract><p>В работе исследованы гранулометрический состав, насыпная плотность и плотность после утряски, текучесть, форма частиц и удельная поверхность (БЭТ) фракций электролитических порошков никеля с различными формой и состоя­нием поверхности частиц. Показано, что при близком гранулометрическом составе различия в морфологии и состоянии поверхности частиц оказывают определяющее влияние на технологические свойства порошков. Частицы с развитой поверхностью характеризуются сниженными величинами насыпной плотности и текучести, а также повышенной удельной поверхностью по сравнению с порошками с более гладкой поверхностью. Порошки ранжированы с использованием критерия формы частиц, учитывающего одновременно их геометрию и состояние поверхности. Установлено, что введение 15–20 мас. % высокодисперсного порошка с развитой поверхностью позволяет придать формуемость порошкам с округ­лой формой частиц, не формующимся в высокопористую ленту при холодной прокатке. Это связано с формированием каркасной структуры, обеспечивающей заклинивание частиц в процессе деформации. Получен высокопористый прокат как из порошка никеля с формой частиц, обеспечивающей формуемость, так и из порошка, не обладающего формуемостью, при введении добавки порошка с развитой поверхностью. После спекания исследованы усадка, прочность и параметры порис­той структуры. Показано, что для шихт, содержащих такую добавку, целесообразно использовать более высокие температуры спекания. Установлено, что пористая структура проката из смеси округлого гладкого порошка и высокодисперсного порошка с развитой поверхностью определяется содержанием добавки: с увеличением ее доли уменьшаются размер пор и проницаемость при практически неизменной извилистости. При оптимальном содержании добавки формируется структура, сопоставимая по свойствам с прокатом из порошка с исходно благоприятной формой частиц. При меньшем содержании добавки достигаются более высокие значения проницаемости, однако формуемость шихты при этом существенно снижается.</p></abstract><trans-abstract xml:lang="en"><p>The particle size distribution, apparent density, tap density, flowability, particle morphology, and specific surface area (BET) were determined for fractions of electrolytic nickel powders differing in particle shape and surface morphology. Despite similar particle size distributions, differences in particle morphology and surface condition were found to have a decisive effect on powder processing properties. Powders with highly developed particle surfaces exhibited lower apparent density and flowability and a higher specific surface area than powders with smoother particles. The powders were ranked using a particle-shape criterion that accounts for both particle geometry and surface condition. Adding 15–20 wt. % of a fine powder with a highly developed surface imparted roll-formability to powders with rounded particles that otherwise could not be cold-rolled into highly porous strips. This effect is attributed to the formation of a load-bearing framework that promotes particle interlocking during deformation. Highly porous strips were produced both from a nickel powder with a roll-formable particle morphology and from an otherwise non-roll-formable powder blended with a fine powder having a highly developed surface. After sintering, shrinkage, strength, and pore-structure parameters were determined. Higher sintering temperatures were found to be preferable for powder blends containing this additive. The pore structure of strips produced from a blend of smooth, rounded powder and fine powder with a highly developed surface was governed by the additive content. As the additive fraction increased, pore size and permeability decreased, whereas tortuosity remained nearly unchanged. At the optimum additive content, the resulting pore structure was comparable to that of strips produced from a powder with an inherently favorable particle morphology. At lower additive contents, higher permeability was achieved, but the roll-formability of the blend decreased substantially.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пористая лента</kwd><kwd>холодная прокатка</kwd><kwd>электролитический порошок никеля</kwd><kwd>проницаемость</kwd><kwd>размер пор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>porous strip</kwd><kwd>cold rolling</kwd><kwd>electrolytic nickel powder</kwd><kwd>permeability</kwd><kwd>pore size</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Liu P.S., Liang K.M. 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