Výsledky vyhledávání - "L. N. Kuzmenko"

Thermal Oxidation Kinetics of Multi-Walled Carbon Nanotubes in an Oxygen Flow

Autor: L. N. Kuzmenko, V. A. Petrova, T. M. Terentieva, V. V. Garbuz, T. A. Silinska

Publikováno v: Powder Metallurgy and Metal Ceramics. 58:149-154

The oxidation reactions of multi-walled carbon nanotubes in isothermal conditions have been studied for the first time. With a steady increase in temperature from 923 to 1173 K, the time dependence for the oxidation of multi-walled carbon nanotubes c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d237a0c0514905e64759313ed1b49669
https://doi.org/10.1007/s11106-019-00058-z

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Interaction and Phase Formation in the WC–Fe2O3–NiO–C System Heated in Vacuum and Argon

Autor: L. N. Kuzmenko, A. V. Laptiev, T. A. Silinska, Myroslav Karpets, O. M. Myslyvchenko, O. I. Tolochyn

Publikováno v: Powder Metallurgy and Metal Ceramics. 57:49-56

The interaction and phase formation in the WC–33 wt.% (80% Fe2O3 + 20% NiO) system with and without free carbon when heated in vacuum and in an argon atmosphere have been studied. Superfine soot and sucrose were used as free carbon. The powders pre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea38bdfbb2e7602f5ad53e89f528b4a1
https://doi.org/10.1007/s11106-018-9954-4

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Assessing the Internal Structure of Cross-Linked Carbon Nanofibers by Chemical Methods

Autor: L. S. Suvorova, T. M. Terentieva, T. M. Silinska, V. P. Sergeiev, L. N. Kuzmenko, V. A. Petrova, V. V. Garbuz

Publikováno v: Powder Metallurgy and Metal Ceramics. 56:38-44

The structure of cross-linked carbon nanofibers of DNIPRO industrial carbon fabric produced by pyrolysis of hydrated cellulose is assessed, and their oxidation temperature (Tox = 923 ± 10 K) is found. Fractionated extraction of carbon (as CO2) in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78a6536a0d9c928130e4f29c1913996b
https://doi.org/10.1007/s11106-017-9869-5

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Qualification of the Method for Determining the Content of Multiwall Carbon Nanotubes

Autor: L. S. Suvorova, V. A. Petrova, V. V. Garbuz, L. N. Kuzmenko

Publikováno v: Powder Metallurgy and Metal Ceramics. 55:625-631

The oxidation temperature for multiwall carbon nanotubes purified chemically and evaluated morphologically is qualified by scanning electron microscopy. The samples obtained by different methods have oxidation temperature 1033 ± 10 K. The results ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9e747baed126b08257885c72e5098af
https://doi.org/10.1007/s11106-017-9848-x

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Structural Effects in Determining Silicon Concentration in Al - Si Alloys by X-Ray Fluorescence and Mass Spectrometry

Autor: Larisa P. Kravchenko, L. N. Kuzmenko, Lyudmila A. Tsurpal, V. D. Kurochkin

Publikováno v: Powder Metallurgy and Metal Ceramics. 44:191-195

The paper discusses how the structure of aluminum alloys affects the determination of silicon by x-ray fluorescence and glow-discharge mass spectrometry. As the silicon microcrystals enlarge, there tends to be an exaggeration of its content. The kine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02843f727a683ce549c90f15d79906c9
https://doi.org/10.1007/s11106-005-0079-1

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Preparation of Hard Alloy WC and WC – Co Mixtures with Reduction and Carbidizing Treatment of Oxidized Tungsten Containing Scrap

Autor: I. V. Uvarova, Luiza D. Konchakovskaya, Tatyana E. Babutina, L. N. Kuzmenko

Publikováno v: Powder Metallurgy and Metal Ceramics. 43:111-116

A method of single-stage reduction and carbidizing treatment of oxidized tungsten containing scrap (hard alloys of the VK type and tungsten wire) is proposed. Procedures are suggested for preparing very fine tungsten carbide of stoichiometric composi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b5798db71f9d5c2a47a64668ba326ff
https://doi.org/10.1023/b:pmmc.0000035697.19352.d7

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