Texture Development in Liquid-Phase-Sintered β  -SiC by Seeding with β  -SiC Whiskers

Kim, Won-Joong; Roh, Myong-Hoon; Kim, Won-Joong; Roh, Myong-Hoon

doi:2006.43.3.152

J. Korean Ceram. Soc. > Volume 43(3); 2006 > Article

Journal of the Korean Ceramic Society 2006;43(3): 152.
doi: https://doi.org/10.4191/kcers.2006.43.3.152

Texture Development in Liquid-Phase-Sintered β -SiC by Seeding with β -SiC Whiskers

Won-Joong Kim, Myong-Hoon Roh

Department of Materials Science and Engineering, The University of Seoul

ABSTRACT

Silicon carbide ceramics seeded with 10-30 wt% SiC whiskers are fabricated by hot pressing and annealing. A quantitative texture analysis including calculation of the Orientation Distribution Function (ODF) is used for obtaining the degrees of preferred orientation of the fabricated samples. The microstructure and crystallographic texture are discussed with respect to the effect of ${beta}-SiC$ whisker seeds on the resulting fracture toughness values. The SEM microstructures and the texture data reveal a correlation between texture and fracture toughness anisotropy.

Key words: Silicon carbide, Texture, Anisotropy, Phase transformation