Production of HfTaTiNbZrC5 High-Entropy Carbide Micropowder in the Plasma of an Atmospheric Pressure Arc Discharge

A. Ya Pak, P. S. Grinchuk, G. Ya Mamontov, T. Yu Yakich, A. A. Gumovskaya

Результат исследований: Материалы для журналаСтатьярецензирование

Аннотация

HfTaTiNbZrC5 high-entropy carbide micropowder has been synthesized using the technique of direct-current plasma arc discharge at atmospheric pressure. The synthesis was carried out in air atmosphere under conditions of the formation of a protective carbon monoxide gas layer. TiO2, ZrO2, Nb2O5, HfO2, and Ta2O5 oxide metal powders included in the composition of high-entropy carbide with characteristic grain dimensions of 5–10 μm have been used as raw feedstock. It has been shown that it takes at least 90–100 s for the formation of high-entropy carbide to occur from raw feedstock under the action of arc discharge plasma. The advantage of the proposed method of producing high-entropy carbide micropowder compared to other similar methods is the short time of synthesis of such powder with low energy expenditure (~960 kJ/g) and the possibility of using simple equipment for synthesis.

Язык оригиналаАнглийский
Страницы (с-по)88-94
Число страниц7
ЖурналJournal of Engineering Physics and Thermophysics
Том94
Номер выпуска1
DOI
СостояниеОпубликовано - янв 2021

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

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