The matrix cracking behavior of a zircon matrix -uniaxial SCS 6 fiber composite was studied as a function ofinitial flaw size and temperature. The composites werefabricated by a tape casting and hot pressing technique. Surfaceflaws of controlled size were introduced using a vicker'sindenter. The composite samples were tested in three pointflexure at three different temperatures to study the non steadystate and steady state matrix cracking behavior. The compositesamples exhibited steady state and non steady matrix crackingbehavior at all temperatures. The steady state matrix crackingstress and steady state crack size increased with increasingtemperature. The results of the study correlated well with theresults predicted by the matrix cracking models.
展开▼
