Fracture Toughness of Fibrous Si3N4 Monolithic Ceramics
Fibrous Si3N4 monolithic ceramics with a hexagonal cell were fabricated in the preferred orientation. The densified Si3N4 fibrous monolithic showed fracture toughness of 17 MPam1/2. An application of SiC whisker as reinforcement exhibited higher fracture toughness (24 MPam1/2). The influences of fiber diameter and reinforcement on the fracture toughness of these fibrous monolithic ceramics were studied in details.
T. Ohji, T. Sekino and K. Niihara
H. Guo et al., "Fracture Toughness of Fibrous Si3N4 Monolithic Ceramics", Key Engineering Materials, Vols. 317-318, pp. 297-300, 2006