najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2025-16-5-628-639najo-1534Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХFormation of highly dispersed V–C–O–Ni and V–N–O–Ni compositions under low-temperature nitrogen plasma conditionsФормирование высокодисперсных композиций V – C – O – Ni и V – N – O – Ni в условиях низкотемпературной азотной плазмыhttps://orcid.org/0000-0002-1470-0476АвдееваЮ. А.AvdeevaYu. A.

Yuliya A. Avdeeva

Pervomaiskaya Street, 91, Ekaterinburg, 620990

y-avdeeva@list.ruhttps://orcid.org/0000-0001-9123-5371ЛужковаИ. В.LuzhkovaI. V.

Irina V. Luzhkova

Pervomaiskaya Street, 91, Ekaterinburg, 620990

key703@yandex.ruhttps://orcid.org/0000-0003-4440-427XМурзакаевА. М.MurzakaevA. M.

Aidar M. Murzakaev

Amundsen Street, 106, Ekaterinburg, 620216

aidar@iep.uran.ruhttps://orcid.org/0000-0002-2746-5292ЕрмаковА. Н.ErmakovA. N.

Alexey N. Ermakov

Pervomaiskaya Street, 91, Ekaterinburg, 620990

ermakovihim@yandex.ruInstitute of Solid State Chemistry of the Ural Branch of the Russian Academy of SciencesRussian FederationInstitute of Electrophysics of the Ural Branch of the Russian Academy of SciencesRussian Federation202505112025165628639Copyright © Avdeeva Y.A., Luzhkova I.V., Murzakaev A.M., Ermakov A.N., 20252025Авдеева Ю.А., Лужкова И.В., Мурзакаев А.М., Ермаков А.Н.Avdeeva Y.A., Luzhkova I.V., Murzakaev A.M., Ermakov A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1534

Under conditions of plasma-chemical synthesis in low-temperature (4000-6000 ⁰C) nitrogen plasma, ultrafine and nanocrystalline powder compositions VC–Ni and VN–Ni were obtained from mechanical mixtures containing vanadium carbide or nitride with metallic nickel in the ratio 1:1. X-ray studies have shown that the obtained plasma-chemical particles contain vanadium oxycarbides and oxynitrides, metallic nickel, and are also characterized by the presence of oxide phases of the V–O system. Electron microscopic studies of nanocrystalline fractions of VC–Ni and VN–Ni powder compositions using high-resolution transmission electron microscopy visualized the structure of the obtained particles. Using the fast Fourier transform, it was shown that the refractory components and metallic nickel form individual nanometer-scale particles that do not come into contact with each other. A chemical mechanism of the organization of highly dispersed mechanical mixtures V–C–O–Ni and V–N–O–Ni under conditions of quenching processes in a turbulent flow of nitrogen gas proceeding at a speed of 105 ⁰C/s has been formulated on the basis of the performed research.

В условиях плазмохимического синтеза в низкотемпературной (4000-6000⁰С) азотной плазме из механических смесей, содержащих в своем составе карбид или нитрид ванадия с металлическим никелем в соотношении 1:1, получены ультрадисперсные и нанокристаллические порошковые композиции VC – Ni и VN – Ni. Рентгенографические исследования показали, что полученные плазмохимические частицы содержат в своем составе оксикарбиды и оксинитриды ванадия, металлический никель, а также характеризуются присутствием оксидных фаз системы V – O. Электронно-микроскопические исследования нанокристаллических фракций порошковых композиций VC – Ni и VN – Ni в рамках просвечивающей электронной микроскопии высокого разрешения визуализировали строение полученных частиц. В условиях использования быстрого преобразования Фурье было показано, что тугоплавкие составляющие и металлический никель формируют индивидуальные частицы нанометрового диапазона, не контактирующие между собой. На основе проведенных исследований сформулирован химический механизм организации высокодисперсных механических смесей V – C – O – Ni и V – N – O – Ni в условиях закалочных процессов в турбулентном потоке газообразного азота, протекающих со скоростью 105 ⁰С/c.

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The authors declare that there are no conflicts of interest present.