Ultra-high temperature resistance of one-dimensional hafnium carbide wrapped with pyrolytic carbon up to 2450 ℃

Yanqin Fu, Yulei Zhang, Hui Chen, Xuemin Yin, Jian Zhang, Jia Sun, Qiangang Fu

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Hafnium carbide (HfC) have attracted growing interests from research of ultra-high temperature ceramics (UHTCs) field. In this paper, we investigated the synthesis and high temperature stability of one-dimensional (1D) HfC and the core-shell HfC nanwoires/pyrolytic carbon (HfCNWs/PyC). Results exhibited that HfCNWs with diameter of 200–300 nm could keep their morphological and structural stability at 2100 ℃, and PyC improved the stability of HfCNWs under high temperature conditions. Our work could not only provide theoretical basis for HfCNWs reinforced carbon or ceramic-based composites, but also propose a deep thinking of the stability of nanomaterials under ultra-high temperature conditions.

Original languageEnglish
Article number110015
JournalCorrosion Science
Volume195
DOIs
StatePublished - Feb 2022

Keywords

  • Core-shell structure
  • Heat treatment
  • HfC/PyC
  • One-dimensional HfC
  • Ultra-high temperature stability

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