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Fiber pullout processes and mechanisms of a carbon fiber reinforced silicon nitride ceramic composite

Published online by Cambridge University Press:  31 January 2011

Takayuki Suzuki ,
Masahiro Sato  and
Mototsugu Sakai
Takayuki Suzuki
Affiliation:
Department of Materials Science, Toyohashi University of Technology, Tenpaku-cho, Toyohashi 441, Japan
Masahiro Sato
Affiliation:
Department of Materials Science, Toyohashi University of Technology, Tenpaku-cho, Toyohashi 441, Japan
Mototsugu Sakai
Affiliation:
Department of Materials Science, Toyohashi University of Technology, Tenpaku-cho, Toyohashi 441, Japan
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Abstract

Details of fiber pullout processes and mechanisms are addressed for a carbon fiber reinforced silicon nitride ceramic composite. The energy for fiber pullout, γpo, is experimentally measured by the work-of-fracture technique using test specimens with a circumferential notch. A precise determination of the distribution of pullout fibers combined with the experimental results of the pullout energy provides an important insight into the micromechanical processes and mechanisms of the composite fracture. Various energy dissipation processes associated with the composite fracture, the frictional interface shear stress, the Weibull modulus of the reinforcing fibers, and composite designs for improved toughening are discussed.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 10 , October 1992 , pp. 2869 - 2875
Copyright
Copyright © Materials Research Society 1992

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