Plasma Jet Synthesis of Cubic Tungsten Carbide of Variable Stoichiometry / A. A. Sivkov, A. Nassyrbayev (Nasyrbaev), D. S. Nikitin [et al.]
Уровень набора: Inorganic MaterialsЯзык: английский.Страна: .Резюме или реферат: This paper reports plasma jet synthesis of nanocrystalline cubic tungsten carbide. Using a coaxial magnetoplasma accelerator with graphite electrodes, we have implemented an experimental process that allows one to obtain up to 95% crystalline WC1 - x. We have demonstrated the feasibility of tuning the parameter 1 - x (stoichiometric ratio) in this compound by varying the energetics of the process and the composition of the starting mixture. Varying the released energy from 8 to 23 kJ and the ν(C)/ν(W) atomic ratio of the starting reagents from 0.6 to 2.5 allows the composition of cubic tungsten carbide to be tuned in the range WC0.64 to WC0.78..Примечания о наличии в документе библиографии/указателя: [References: 15 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | cubic tungsten carbide | plasma jet synthesis | stoichiometry | nonstoichiometric compounds | X-ray diffraction | карбид вольфрама | плазменный синтез | стехиометрия | нестехиометрические соединения | дифракция | рентгеновские лучи Ресурсы он-лайн:Щелкните здесь для доступа в онлайнTitle screen
[References: 15 tit.]
This paper reports plasma jet synthesis of nanocrystalline cubic tungsten carbide. Using a coaxial magnetoplasma accelerator with graphite electrodes, we have implemented an experimental process that allows one to obtain up to 95% crystalline WC1 - x. We have demonstrated the feasibility of tuning the parameter 1 - x (stoichiometric ratio) in this compound by varying the energetics of the process and the composition of the starting mixture. Varying the released energy from 8 to 23 kJ and the ν(C)/ν(W) atomic ratio of the starting reagents from 0.6 to 2.5 allows the composition of cubic tungsten carbide to be tuned in the range WC0.64 to WC0.78.
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