Refractory HfC-HfN ceramics tested in a plasma flow

Refractory HfC-HfN ceramics tested in a plasma flow

The paper presents a study in stability of ceramics of hafnium carbide-nitride subjected to impact of a nitrogen plasma jet in air atmosphere. The best thermal resistance was demonstrated for ceramics with N/C ≈ 0.698, which is determined by the maximum of surface temperature and minimum mass loss i...

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Veröffentlicht in:Thermophysics and aeromechanics 2020-09, Vol.27 (5), p.787-790
Hauptverfasser: Zavyalov, A. P., Sergachev, D. V., Gulyaev, I. P., Shichalin, O. O., Papynov, E. K.
Format: Artikel
Sprache:eng
Schlagworte:
Brief Communications
Ceramics
Flow stability
Hafnium carbide
Hydrofluorocarbons
Nitrogen plasma
Physics
Physics and Astronomy
Plasma jets
Solid solutions
Thermal resistance
Thermodynamics
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Zusammenfassung:The paper presents a study in stability of ceramics of hafnium carbide-nitride subjected to impact of a nitrogen plasma jet in air atmosphere. The best thermal resistance was demonstrated for ceramics with N/C ≈ 0.698, which is determined by the maximum of surface temperature and minimum mass loss in the series of HfC-HfN solid solutions.
ISSN:0869-8643
1531-8699
DOI:10.1134/S0869864320050145