High-temperature reaction consolidation of TaC-TiB2 ceramic composites by spark-plasma sintering

D. Demirskyi, Y. Sakka

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Dense TaC-TiB2 composites were obtained by reactive spark plasma sintering (SPS). Effect of TaC content, consolidation temperature on microstructure and mechanical properties is reported. High temperature reactive spark plasma consolidation ensures formation of (Ta,Ti)C and (Ti,Ta)(C,B) solid solutions and leads to microstructure refinement as compared to monolithic TaC and TiB2 ceramics consolidated by SPS at identical temperatures. TaC-TiB2 ceramic SPSed at 2000°C for 5min exhibits fracture toughness and hardness of 5.8MPam1/2 and 28.8±1.1GPa, respectively.

Original languageEnglish
Pages (from-to)405-410
Number of pages6
JournalJournal of the European Ceramic Society
Volume35
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes

Keywords

  • Reaction sintering
  • Solid solution
  • Spark-plasma sintering
  • TaC
  • TiB

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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