the use of p&o& matrices to enable damage tolerance in ceramic composites has emerged as a
. .
new ljaradigm in high performance materials. This paradigm obviates the need for fiber coatings
for the puipose of crack deflection, thereby providing opportunities for lower cost MFG relative to
that of conventional coated-fiber systems. Thus, the CISiC-material shows a fiber-dominated
behavior due to high fiber strength and matrix porosity. The characteristics and mechanical
properties of this CISiC are highlighted. The discussion deals with the particular mechanical
chgacteristics of porous-matrix materials relating to similar materials investigated hitherto.