Synthesis of transition metal carbides and high-entropy carbide TiZrNbHfTaC5 in self-shielding DC arc discharge plasma
| Parent link: | Ceramics International Vol. 48, iss. 2.— 2022.— [P. 3818-3825] |
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| Corporate Authors: | , |
| Other Authors: | , , , |
| Summary: | Title screen The paper shows the feasibility of synthesizing micro- and nano-sized particles of binary metal carbides (Me-C) and high-entropy carbide (HEC) TiZrNbHfTaC5 by vacuum-free electric arc method. The method is based on the effect of self-shielding of the reaction volume from atmospheric oxygen by carbon monoxide CO, which is generated during arcing in air. The synthesis results in a solid solution with a NaCl-type carbide with a cubic lattice, which simultaneously contains atoms of titanium, zirconium, niobium, hafnium, tantalum, and carbon. The lattice parameter of the HEC TiZrNbHfTaC5 phase is ~4.532 A that is in line with the known data on this compound. The synthesis product contains micro-sized particle agglomerates of transition metal carbides. The synthesis products also contain nano-sized particles with a shell-core structure, in which the core can consist of metal carbide (TiC, ZrC, NbC, HfC, TaC) or HEC TiZrNbHfTaC5, and the shell is a graphite phase. Режим доступа: по договору с организацией-держателем ресурса |
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2022
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| Subjects: | |
| Online Access: | https://doi.org/10.1016/j.ceramint.2021.10.165 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666868 |