Spark plasma sintering of TiC-ZrC composites

Ying Li, Hirokazu Katsui, Takashi Goto

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

TiC-ZrC composites were consolidated from TiC and ZrC powders by spark plasma sintering (SPS) at 1500-2200 °C. For sintering temperatures above 1800 °C, the sintered bodies with TiC compositions of 60-90 mol% were densified to relative densities above 95%. For sintering temperatures below 1900 °C, the sintered bodies were composed of Ti- and Zr-rich solid solutions, (Ti, Zr)C; at high temperatures above 2000 °C, they formed a single-phase (Ti, Zr)C. Above 2000 °C, the single-phase (Ti, Zr)C had a uniform morphology. The single-phase (Ti, Zr)C and the composites of Ti- and Zr-rich (Ti, Zr)C for TiC compositions greater than 80 mol% exhibited values of Vickers hardness above 26 GPa.

Original languageEnglish
Pages (from-to)7103-7108
Number of pages6
JournalCeramics International
Volume41
Issue number5
DOIs
Publication statusPublished - 2015 Jun 1

Keywords

  • C. Hardness
  • Solid solution
  • Spark plasma sintering
  • Titanium carbide
  • Zirconium carbide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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