Transverse fracture toughness of unidirectional continuous fiber and hybrid ceramic matrix composites

摘要

Reinforcing ceramic materials with unidirectionally aligned continuous fibers improves the mechanical characteristics in the fiber diection but often results in reduced transverse strength and fracture toughness. As an effort to improve the transverse properties of unidirectional fiber reinforecd ceramic matrix composites (FCMC), randomly dispersed fine whiskers can be added to the matrix. The result is a hybrid ceramic matrix composite (HCMC). The objective of this investigation was to ascertain what improvement, if any, can be made through the process of hybridization.