Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors
Metal matrix composites with a matrix of refractory metals (niobium, tungsten) and reinforcing nanodiamond particles were prepared for studying the possibility of decreasing the starting temperature of carbide synthesis. The size of primary nanodiamond particles was 4–6 nm, but they were combined in...
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MDPI AG
2022-12-01
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| Series: | Inventions |
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| Online Access: | https://www.mdpi.com/2411-5134/7/4/120 |
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| author | Vladimir Popov Anna Borunova Evgeny Shelekhov Oksana Koplak Elizaveta Dvoretskaya Danila Matveev Alexey Prosviryakov Ekaterina Vershinina Vladimir Cheverikin |
| author_facet | Vladimir Popov Anna Borunova Evgeny Shelekhov Oksana Koplak Elizaveta Dvoretskaya Danila Matveev Alexey Prosviryakov Ekaterina Vershinina Vladimir Cheverikin |
| author_sort | Vladimir Popov |
| collection | DOAJ |
| description | Metal matrix composites with a matrix of refractory metals (niobium, tungsten) and reinforcing nanodiamond particles were prepared for studying the possibility of decreasing the starting temperature of carbide synthesis. The size of primary nanodiamond particles was 4–6 nm, but they were combined in large-sized agglomerates. Mechanical alloying was used for producing the composites by crushing agglomerates and distributing nanodiamonds evenly in the metal matrix. The initial and fabricated materials were investigated by X-ray diffraction, differential scanning calorimetry, and transmission and scanning electron microscopy. Thermal processing leads to the reaction for carbide synthesis. Studies have found that the usage of carbon nanoparticles (nanodiamonds) as precursors for fabricating carbides of refractory metals leads to a dramatic decrease in the synthesis temperature in comparison with macro-precursors: lower than 200 °C for tungsten and lower than 350 °C for niobium. |
| first_indexed | 2024-03-09T09:44:21Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2411-5134 |
| language | English |
| last_indexed | 2024-03-09T09:44:21Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inventions |
| spelling | doaj.art-11b3f336b046428181b1476f36e6384b2023-12-02T00:38:30ZengMDPI AGInventions2411-51342022-12-017412010.3390/inventions7040120Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as PrecursorsVladimir Popov0Anna Borunova1Evgeny Shelekhov2Oksana Koplak3Elizaveta Dvoretskaya4Danila Matveev5Alexey Prosviryakov6Ekaterina Vershinina7Vladimir Cheverikin8Department of Physical Metallurgy of Non-ferrous Metals, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaN.N. Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences, 119334 Moscow, RussiaDepartment of Physical Metallurgy of Non-ferrous Metals, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaFederal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, 142432 Chernogolovka, RussiaFederal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, 142432 Chernogolovka, RussiaOsipyan Institute of Solid State Physics of Russian Academy of Sciences, 142432 Chernogolovka, RussiaDepartment of Physical Metallurgy of Non-ferrous Metals, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaDepartment of Innovative Materials and Corrosion Protection, Dmitry Mendeleev University of Chemical Technology of Russia, 125047 Moscow, RussiaDepartment of Physical Metallurgy of Non-ferrous Metals, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaMetal matrix composites with a matrix of refractory metals (niobium, tungsten) and reinforcing nanodiamond particles were prepared for studying the possibility of decreasing the starting temperature of carbide synthesis. The size of primary nanodiamond particles was 4–6 nm, but they were combined in large-sized agglomerates. Mechanical alloying was used for producing the composites by crushing agglomerates and distributing nanodiamonds evenly in the metal matrix. The initial and fabricated materials were investigated by X-ray diffraction, differential scanning calorimetry, and transmission and scanning electron microscopy. Thermal processing leads to the reaction for carbide synthesis. Studies have found that the usage of carbon nanoparticles (nanodiamonds) as precursors for fabricating carbides of refractory metals leads to a dramatic decrease in the synthesis temperature in comparison with macro-precursors: lower than 200 °C for tungsten and lower than 350 °C for niobium.https://www.mdpi.com/2411-5134/7/4/120metal matrix nanocompositesnanodiamondscarbides of refractory metalsmechanical alloyingin situ synthesis |
| spellingShingle | Vladimir Popov Anna Borunova Evgeny Shelekhov Oksana Koplak Elizaveta Dvoretskaya Danila Matveev Alexey Prosviryakov Ekaterina Vershinina Vladimir Cheverikin Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors Inventions metal matrix nanocomposites nanodiamonds carbides of refractory metals mechanical alloying in situ synthesis |
| title | Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors |
| title_full | Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors |
| title_fullStr | Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors |
| title_full_unstemmed | Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors |
| title_short | Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors |
| title_sort | decrease in the starting temperature of the reaction for fabricating carbides of refractory metals when using carbon nanoparticles as precursors |
| topic | metal matrix nanocomposites nanodiamonds carbides of refractory metals mechanical alloying in situ synthesis |
| url | https://www.mdpi.com/2411-5134/7/4/120 |
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