Tensile strength and fracture toughness of C/C and metal infiltrated composites Si-C/C and Cu-C/C

Wen Xue Wang, Yoshihiro Takao, Terutake Matsubara

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In this paper, tensile strength and mode I fracture toughness of a low cost carbon-carbon composite (C/C) and liquid metal infiltrated composites Si-C/C and Cu-C/C are investigated based on tensile testing and compact tension testing. Si-C/C and Cu-C/C are manufactured by infiltrating liquid silicon and copper into the low cost C/C, respectively, to make the densification of porous C/C, and to improve the oxidation resistance and the frictional and wearing properties of C/C for various potential applications under high temperature and frictional environments. Experimental results and analysis of microstructures of three composites reveal that the infiltration of liquid metal into C/C significantly influences the tensile strength and fracture toughness of the composite. The tensile strength and fracture toughness of Si-C/C are much lower than original C/C. On the other hand, infiltration of copper into C/C significantly improves the stiffness and strength of Cu-C/C.

Original languageEnglish
Pages (from-to)231-242
Number of pages12
JournalComposites Part A: Applied Science and Manufacturing
Volume39
Issue number2
DOIs
Publication statusPublished - Feb 1 2008

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Fracture toughness
Tensile strength
Carbon
Metals
Composite materials
Tensile testing
Liquid metals
Infiltration
Copper
Carbon carbon composites
Oxidation resistance
Silicon
Densification
Costs
Stiffness
Microstructure

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

Cite this

Tensile strength and fracture toughness of C/C and metal infiltrated composites Si-C/C and Cu-C/C. / Wang, Wen Xue; Takao, Yoshihiro; Matsubara, Terutake.

In: Composites Part A: Applied Science and Manufacturing, Vol. 39, No. 2, 01.02.2008, p. 231-242.

Research output: Contribution to journalArticle

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