More complicated, three-dimensional components of highest properties can be produced by gas pressure infiltration of wound or braided preforms15. Densely packed unidiŽ.rectional ceramic fibres’ 10 ]15 m m in diameter preforms achieve 50]60 vol.%, whereas the thinner carbon. fibres approx m m in diameter can be wound to 60]70 vol.%. The metal matrix provides the load transfer between the fibres and should be ductile to prevent local stress concentrations, which cause premature fracture
of wound or braided