Carbothermal reduction synthesis of near-stoichiometric ZrC whiskers via V-L-S and S-L-S growth mechanism

Shuo Cheng, Laifei Cheng, Fang Ye, Kai Zhao

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Near-stoichiometric zirconi um carbide (ZrC) whiskers, which were efficiently synthesized from the mixture of ZrO2, C, Ni and NaF by carbothermal reduction at 1500 °C in Ar atmosphere, are about 1 μm in diameter and 30–50 μm in length with smooth surfaces. Near-stoichiometric ZrC whiskers were prepared by regulating the concentration of precursors (carbon black, catalyst Ni), subsequently vapor-liquid-solid (V-L-S) and solid-liquid-solid (S-L-S) growth mechanisms of ZrC whiskers were clearly revealed and related models were established.

Original languageEnglish
Pages (from-to)27463-27468
Number of pages6
JournalCeramics International
Volume46
Issue number17
DOIs
StatePublished - 1 Dec 2020

Keywords

  • Carbothermal reduction process
  • Vapor-liquid-solid and solid-liquid-solid growth mechanisms
  • ZrC whiskers

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