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Enhanced mechanical properties of carbon fibre/lithium aluminosilicate composites modified by SiB6 addition

  • Long Xia
  • , Chi Wang
  • , Dongdong Feng
  • , Ke Wang
  • , Haibo Han
  • , Tao Zhang*
  • , Guangwu Wen
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Shanghai Institute of Spacecraft Equipment

Research output: Contribution to journalArticlepeer-review

Abstract

Carbon fibre-reinforced lithium aluminosilicate matrix composites (Cf/LAS) with different SiB6 contents were prepared by the hot pressing method to assess their mechanical properties and oxidation resistance. Composite that was incorporated with 2 wt-% SiB6 exhibited the highest flexural strength of 500 ± 22.3 MPa. Weight loss and residual strength of Cf/LAS modified by SiB6 were analysed. The results indicated that the addition of SiB6 had a remarkable effect on improving the oxidation resistance for Cf/LAS. To establish a direct relationship among interfacial microstructure, mechanical and oxidation behaviour of the studied composites, their connection was examined and discussed.

Original languageEnglish
Pages (from-to)500-509
Number of pages10
JournalAdvances in Applied Ceramics
Volume117
Issue number8
DOIs
StatePublished - 17 Nov 2018
Externally publishedYes

Keywords

  • Carbon fibres
  • ceramics matrix composites
  • fracture mechanics/toughness
  • oxidation resistance

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