Abstract
High specific surface area porous SiC ceramics, coated completely with reticulated amorphous SiC nanowires, have been fabricated with commercially available phenolic resin and silicon powders using a novel method. The results indicate that the specific surface area and porosity of the as-synthesized materials can be up to 112 m 2 g −1 and 81%, respectively. The coated amorphous SiC nanowires have uniform structure and smooth surfaces. The electron emission turn-on field and threshold field are about 2.9 and 6.7 V μm −1, respectively. This kind of materials may simultaneously possess the unique properties of porous materials, SiC, and nanowires. And they may have promising applications in a wide variety of areas.
Published Version
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