Preparation of ZrCN−TiCN solid solutions by spark plasma sintering

Ying Li, Hirokazu Katsui, Takashi Goto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

ZrCN–TiCN solid solutions were consolidated by spark plasma sintering (SPS) using ZrC and TiCN powders at 1573–2373 K for 300 s. ZrCN–TiCN solid solutions were densified to relative densities of 96–99% at temperatures above 2073 K. When sintered below 1973 K, the sintered bodies were composed of two phases, Zr-rich and Ti-rich solid-solution phases, whereas a ZrCN–TiCN solid solution in a single phase was obtained above 2073 K. With increasing the sintering temperature, the lattice parameters of the ZrCN–TiCN solid solution decreased and increased at Zr-rich and Ti-rich compositions, respectively. The ZrCN–TiCN solid solution exhibited a Vickers hardness (HV) of 23 GPa and a fracture toughness (KIC) of 3.5 MPa m1/2.

Original languageEnglish
Pages (from-to)16965-16971
Number of pages7
JournalCeramics International
Volume43
Issue number18
DOIs
Publication statusPublished - 2017 Dec 15

Keywords

  • Hardness
  • Solid solution
  • Spark plasma sintering
  • Titanium carbonitride
  • 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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