Preparation and properties of SiC/SiO heterojunction fiber reinforced porous SiC composite materials.

Porous silicon carbide composite ceramics were prepared by partial sintering method and sacrificial silicon, with phenolic resin applied as carbon template, and silicon powder as silicon source and pore-forming agent. It showed a composite structure of SiC/SiO/SiC sandwich shell structure and SiC/SiO heterojunction nanofiber. Through an investigation into the effect of carbon-silicon atomic ratio on the structure and thermodynamic properties of porous SiC.