Fabrication of SiC Composites with Synergistic Toughening of Carbon Whisker and In Situ 3C-SiC Nanowire

الملخص EN

The SiC composites with synergistic toughening of carbon whisker and in situ 3C-SiC nanowire have been fabricated by hot press sinter technology and annealed treatment technology.

Effect of annealed time on the morphology of SiC nanowires and mechanical properties of the C w /SiC composites was surveyed in detail.

The appropriate annealed time improved mechanical properties of the C w /SiC composites.

The synergistic effect of carbon whisker and SiC nanowire can improve the fracture toughness for C w /SiC composites.

The vapor-liquid-solid growth (VLS) mechanism was proposed.

TEM photo showed that 3C-SiC nanowire can be obtained with preferential growth plane ( { 111 } ), which corresponded to interplanar spacing about 0.25 nm.