Journal of Materials Science

, Volume 29, Issue 16, pp 4342–4350 | Cite as

Characteristics of several carbon fibrereinforced aluminium composites prepared by a hybridization method

  • H. M. Cheng
  • A. Kitahara
  • S. Akiyama
  • K. Kobayashi
  • Y. Uchiyama
  • B. L. Zhou


The properties and microstructures of several high-strength and high-modulus carbon fibrereinforced aluminium or aluminium alloy matrix composites (abbreviated as HSCF/Al and HMCF/Al, respectively, for the two types of fibre) have been characterized. The composites evaluated were fabricated by pressure casting based on a hybridization method. It was found that the strength degradation of high-modulus carbon fibres after infiltration of aluminium matrices was not marked and depended upon the type of aluminium matrix. However, the strength of high-strength carbon fibres was greatly degraded by aluminium infiltration and the degradation seemed to be independent of the type of aluminium matrix. The longitudinal tensile strength (LTS) of CF/Al composites was very different between HMCF/Al and HSCF/Al composites. The HMCF/Al composites had LTS values above 800 MPa, but the HSCF/Al composites had only about 400 MPa. In contrast, the transverse tensile strength of the HSCF/Al composites, above 60 MPa, was much higher than that of the HMCF/Al composites, about 16 MPa. Chemical reactions were evident to the interface of high-strength carbon fibres and aluminium matrices. There was no evidence of chemical products arising between high-modulus carbon fibres and Al-Si alloy and 6061 alloy matrices. However, it was considered that some interfacial reactions took place in pure aluminium matrix composites. Fracture morphology observation indicated that the good LTS of CF/Al composites corresponded to an intermediate fibre pull-out, whereas a planar fracture pattern related to a very poor LTS and fibre strength transfer. The results obtained suggested that interfacial bonding between carbon fibres and aluminium matrices had an important bearing on the mechanical properties of CF/Al composites. An intermediate interfacial bonding is expected to achieve good longitudinal and transverse tensile strengths of CF/Al composites.


Carbon Fibre Aluminium Matrix Aluminium Matrix Composite Aluminium Alloy Matrix Alloy Matrix Composite 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • H. M. Cheng
    • 1
  • A. Kitahara
    • 2
  • S. Akiyama
    • 2
  • K. Kobayashi
    • 1
  • Y. Uchiyama
    • 1
  • B. L. Zhou
    • 3
  1. 1.Department of Materials Science and Engineering, Faculty of EngineeringNagasaki UniversityNagasakiJapan
  2. 2.Government Industrial Research Institute-Kyushu, AIST, MITISagaJapan
  3. 3.Institute of Metal ResearchAcademia SinicaShenyangChina

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