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In this paper, the transverse strain response of a series of Hi-Nicalon (SiC) fibre reinforced silicon nitride matrix composites is studied. First, the processing route of the material is described. Subsequently the axial and transverse tensile mechanical behaviour, the matrix crack density evolution, the interface properties, and the thermal residual stresses, as obtained from axial hysteresis loops, are summarized. This is followed by a short description of a micromechanical model for the transverse strain response of unidirectional fibre toughened ceramic matrix composites. To conclude, the experimental and theoretical transverse strain evolution are compared and discussed.

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Authors: OLIVIER C, JRC Petten (NL);VEYRET J B, JRC Petten (NL);VANSWIJGENHOVEN E, Katholieke Universiteit Leuven, Heverlee (BE);VAN DER BIEST O, Katholieke Universiteit Leuven, Heverlee (BE)
Bibliographic Reference: Article: Scripta Materiale, Vol. 37 (1997) No. 12, pp. 2025-2031
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