Spark plasma sintering and characterization of ZrC-TiB2 composites

Ozden Ormanci Ozturk, Gultekin Goller*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

ZrC-based composites were consolidated from ZrC and TiB2 powders by the Spark Plasma Sintering (SPS) technique at 1685 °C and 1700 °C for 300 s under 40-50-60 MPa. Densification, crystalline phases, microstructure, mechanical properties and oxidation behavior of the composites were investigated. The sintered bodies were composed of a (Zr,Ti)C solid solution and a ZrB phase. The densification behaviors of the composites were improved by increasing the TiB2 content and applied pressure. The highest value of hardness, 21.64 GPa, was attained with the addition of 30 vol% TiB2. Oxidation tests were performed at 900 °C for 2 h and the formation of ZrO2, TiO2 and B2O3 phases were identified by using XRD.

Original languageEnglish
Pages (from-to)8475-8481
Number of pages7
JournalCeramics International
Volume43
Issue number11
DOIs
Publication statusPublished - 1 Aug 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd and Techna Group S.r.l.

Keywords

  • Spark plasma sintering
  • Titanium diboride
  • Zirconium carbide

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