Liquid-phase hot-pressing and WC-particle reinforcement of SiC-Si composites

✍ Scribed by B.R. Zhang; F. Marino; M. Ferraris

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 957 KB
• Volume: 14
• Category: Article
• ISSN: 0955-2219
• DOI: 10.1016/0955-2219(94)90126-0

✦ Synopsis

The sintering behaviour of SiC-Si and Si~S~ WC composites hot-pressed via silicon liquid phase has been studied. The results show that the increase of silicon makes the sintered materials densify at lower temperature and the grain growth is restricted due to the effect of the liquid. The strength of SIC-25 vol. % Si samples is higher than the strength obtained for SIC-5 vol.% Si with the same hot-pressing conditions. The addition of WC particles improves relative densities and strengths of SiC-Si ceramics.