Journal
CERAMICS INTERNATIONAL
Volume 29, Issue 3, Pages 287-292Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0272-8842(02)00117-7
Keywords
sintering; carbon; SiC; sintering activators
Categories
Ask authors/readers for more resources
The role of carbon in activating the process of SiC sintering is not fully understood. In the present work we examined the weight and microstructure changes of samples sintered with different additions of carbon (up to 16 wt.%). The measurements were carried out in the temperature range 1000-2200 degreesC. In comparative studies we examined the variations of oxygen content with the sintering temperature. The obtained results indicate that carbon blocks the mass transport processes which are ineffective in densification and enables maintaining proper dispersion of SiC grains up to the temperatures where, due to boron, pore elimination begins. On the basis of microstructural observations of SiC sintered with different amounts of carbon it has been stated also that this additive prevents grain growth of SiC on sintering. (C) 2002 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available