Pinning effect of SiC particles on mechanical properties of Al2O3–SiC ceramic matrix composites

Fabrication and mechanical properties of nano-/micro-sized Al2O3/SiC composites

“…Several useful methods have been proposed some of which are crack-surface bridging [2], particle dispersion of different phases in a matrix [3], fiber reinforced composites [4], macroscopic crack deflection [5], and phase transformation induced toughening as revealed by zirconia [6]. The addition of one or more components into the base material to form ceramic matrix nano-composites (CMNCs) has been found to be effective to enhance the fracture toughness and to improve strength [7][8][9][10][11][12][13][14][15]. Usually in so doing an intragranular nano-structure is formed in nano-sized or nano-/micro-sized ceramic composite materials [7,15].…”

Mechanical properties of Al2O3–SiC–C composites using polycarbosilane as SiC precursor

“…Al 2 O 3 -SiC composites have been widely investigated where different types of SiC were attempted as strengthening phase [1][2][3][4][5][6], such as whisker, nano-sized and micro-sized particles. Compared with the Al 2 O 3 monolithic, a considerable improvement in strength and fracture toughness could be realized with the addition of nanosized SiC [7][8][9].…”

Prediction of fracture characteristic of particlereinforced alumina-based composites

“…ceramic composite, alumina, microstress, fracture mode Particulate composites have the advantages of being isotropic, easier to be prepared and having more reliable mechanical properties compared with fiber composites and laminated composites. As a typical two-phase particulate composite, alumina/SiC nanocomposite has been intensively investigated since its excellent mechanical properties and wear resistance were discovered [1][2][3] . The tremendous improvement of properties in the ceramic composite is relevant to fracture mode transition, as generally believed, though the main reason is still in dispute [4][5][6] .…”