Fabrication of SiCw reinforced ZrB2-based ceramics

Yiguang Wang*, Miao Zhu, Laifei Cheng, Litong Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

ZrB2-based ceramics with SiCw were produced by hot pressing at 1750 °C for 1 h from mixed powders after adding liquid polycarbosilane. The obtained ZrB2-SiCw composites had toughness up to 7.57 MPa m1/2, which was much higher than those for monolithic ZrB2, SiC particles reinforced ZrB2 composites, and other ZrB2-SiCw composites directly sintered at high temperatures. The added liquid polycarbosilane could reduce the sintering temperatures and restrict the reaction of matrix with whisker, which led to fewer damages to the whisker and high fracture toughness.

Original languageEnglish
Pages (from-to)1787-1790
Number of pages4
JournalCeramics International
Volume36
Issue number6
DOIs
Publication statusPublished - Aug 2010
Externally publishedYes

Keywords

  • A: Sintering
  • B: Whiskers
  • C: Toughness and toughening

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