Synthesis of ultrafine cubic tungsten carbide in a discharge plasma jet

Synthesis of ultrafine cubic tungsten carbide in a discharge plasma jet

Detalhes bibliográficos
Parent link:International Journal of Refractory Metals and Hard Materials.— , 2015
Vol. 48.— 2015.— [P. 51-55]
Autor Corporativo: Национальный исследовательский Томский политехнический университет (ТПУ) Энергетический институт (ЭНИН) Кафедра электроснабжения промышленных предприятий (ЭПП)
Outros Autores: Sivkov A. A. Aleksandr Anatolyevich, Pak A. Ya. Aleksandr Yakovlevich, Shanenkov I. I. Ivan Igorevich, Shatrova K., Rakhmatullin I. A. Ilyas Aminovich
Resumo:Title screen
Hexagonal tungsten carbide (WC) is widely-used for the production of metal-working tools, but there is a great interest to the cubic modification of WC. The possibility of obtaining the ultrafine cubic tungsten carbide in an electrodischarge plasma jet generated by a high-current pulsed coaxial magnetoplasma accelerator is shown in this report. According to X-ray diffraction and high resolution transmission electron microscopy the product predominantly consists of a cubic tungsten carbide phase WC0.86 (95% mass). Lattice constant of obtained tungsten carbide is a = 4.2536 Е. This constant differs from the lattice constant (a = 4.2355 Е) for ICDD card no. 00-020-1316 (cubic WC1 - x) nonetheless both of them are in the possible range for cubic tungsten carbide structures. The high cooling rate, realized in the system based on coaxial magnetoplasma accelerator, provides the formation of the cubic WC lattice and the narrow range of particle size distribution (10–40 nm).
Режим доступа: по договору с организацией-держателем ресурса
Publicado em: 2015
Assuntos:
электронный ресурс
труды учёных ТПУ
synthesis
cubic tungsten carbide
Plasma jet
magnetoplasma accelerator
Acesso em linha:http://dx.doi.org/10.1016/j.ijrmhm.2014.07.025
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=642796

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