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Ultra-High-Temperature Composite Hf4ZrC5 Produced by Electrothermal Explosion under Pressure

Authors
  • Shcherbakov, V. A.1
  • Gryadunov, A. N.1
  • Alymov, M. I.1
  • 1 Merzhanov Institute of Structural Macrokinetics and Problems of Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia , Chernogolovka (Russia)
Type
Published Article
Journal
Doklady Chemistry
Publisher
Pleiades Publishing
Publication Date
Feb 01, 2021
Volume
496
Issue
2
Pages
38–41
Identifiers
DOI: 10.1134/S0012500821020026
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractThe production of the ultra-high-temperature composite Hf4ZrC5 by a single-stage method of electrothermal explosion under pressure was experimentally investigated. The effect of mechanical activation on the characteristics of the reaction powder mixture and the formation of the phase composition of the ceramic composite Hf4ZrC5 was studied. The preliminary mechanical activation of a mixture of Hf, Zr, and C powders in hexane enabled one to obtain the ultra-high-temperature composite Hf4ZrC5 with a particle size of less than 1 µm and a residual porosity of 10‒12%.

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