Effect of Chemical Composition on the Sinterability of Ultrafine Sic Powders |
| |
| Authors: | Junichi Hojo Kenji Miyachi Yasuzo Okabe Akio Kato&#; |
| |
| Affiliation: | Department of Applied Chemistry, Faculty of Engineering, Kyushu University 36, Higashi-ku, Fukuoka-shi, 812 Japan |
| |
| Abstract: | Ultrafine β-SiC powders with an average particle size of 0.01 to 0.06 μm were produced by CVD methods. When these powders contained enough carbon to remove impurity oxygen, sintered bodies with a relative density >95% were uchieved at 2050°C in the presence of 1 wt% boron. The Vickers microhardness reached 21 to 25 GPa at a density of ∼95% . |
| |
| Keywords: | |
|
|
