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Resistivity of Refractory Carbides (ZrC, HfC, and TaC + HfC) in the Solid and Liquid States

Authors
  • Savvatimskii, A. I.1, 2
  • Onufriev, S. V.2
  • 1 Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia , Moscow (Russia)
  • 2 Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412, Russia , Moscow (Russia)
Type
Published Article
Journal
High Temperature
Publisher
Pleiades Publishing
Publication Date
Nov 01, 2020
Volume
58
Issue
6
Pages
800–805
Identifiers
DOI: 10.1134/S0018151X20060188
Source
Springer Nature
License
Yellow

Abstract

AbstractThe resistivity of hafnium carbide in the temperature range of 2000–5000 K has been measured via current-pulse heating (for several microseconds). Data on the liquid phase have been obtained for the first time. The resistivity was calculated for sample sizes at room temperature (thermal expansion was neglected). A comparative investigation of the resistivities (measured with the same method) of the refractory carbides ZrC, HfC, and TaC + HfC has been performed in a wide temperature range (2000–5000 K). The dependences of the resistivity on temperature and heating energy for the samples obtained via spark plasma sintering and magnetron sputtering are compared.

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