Ti3Si(Al)C2-based ceramics fabricated by reactive melt infiltration with Al70Si30 alloy

Lei Wang, Xiaowei Yin, Xiaomeng Fan, Peter Greil, Nahum Travitzky

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Dense Ti3Si(Al)C2-based ceramics were synthesized using reactive melt infiltration (RMI) of Al70Si30 alloy into the porous TiC preforms. The effects of the infiltration temperature on the microstructure and mechanical properties of the synthesized composites were investigated. All the composites infiltrated at different temperatures were composed of Ti3Si(Al)C2, TiC, SiC, Ti(Al, Si)3 and Al. With the increase of infiltration temperature from 1050°C to 1500°C, the Ti3Si(Al)C2 content increased to 52vol.% and the TiC content decreased to 15vol.%, and the Vickers hardness, flexural strength and fracture toughness of Ti3Si(Al)C2-based composite reached to 9.95GPa, 328MPa and 4.8MPam1/2, respectively.

Original languageEnglish
Pages (from-to)1493-1499
Number of pages7
JournalJournal of the European Ceramic Society
Volume34
Issue number6
DOIs
StatePublished - Jun 2014

Keywords

  • Al-Si alloy
  • Reactive melt infiltration
  • TiSi(Al)C

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