TEM/EELS characterization of a sintered polycrystalline silicon carbide fiber
Abbreviated Journal Title
J. Am. Ceram. Soc.
REACTION-MECHANISMS; CERAMIC FIBERS; HEAT-TREATMENT; SIC FIBERS; NICALON; RADIATION; Materials Science, Ceramics
A sintered, polycrystalline SiC fiber has been characterized by TEM and EELS. The fibers consist primarily of alpha-SiC (6H-polytype) with a mean grain size on the order of approximately 1 mu m. Poorly organized turbostratic carbon is located within porous regions between some grain boundaries and triple junctions of the SiC. In addition, 100 nm spherical boron carbide precipitates are observed intra-granularly within the SiC grains. These precipitates have a rhombohedral crystal structure with an approximate stoichiometry of B4C.
Journal of the American Ceramic Society
"TEM/EELS characterization of a sintered polycrystalline silicon carbide fiber" (1998). Faculty Bibliography 1990s. 2474.