Abstract
Zirconia matrices reinforced with 13 vol% SiC whiskers, obtained either by hot-pressing or by extrusion, have been deformed by compressive creep. The composite behaviour is similar to that of the matrix alone and suggests identical deformation mechanisms. The creep rate was not much affected by the whiskers; in particular the creep rate was not dependent on the direction of the compression axis. By contrast, for some directions of the compression axis, a strain anisotropy appeared in the plane perpendicular to the compression axis. The influence of whisker orientation on deformation has been explored by considering the matter flows in the vicinity of whiskers and the whisker distribution.
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