Influence of sintering atmosphere on the performance of porous silicon carbide ceramics
- 10.2991/icmmct-16.2016.28How to use a DOI?
- porous SiC ceramics, coat-mix, sintering atmosphere, performance
The core-shell structure precursor powder was fabricated by coat-mix process in different fabrication conditions with various aging pH value. The porous silicon carbide ceramics were prepared through molding, carbonization, and sintering in argon atmosphere and vacuum, respectively. Morphology, physical phase, weight loss rate, density, porosity, bending strength and thermal shock resistance of porous silicon carbide ceramic samples were analyzed and the results show that the aging pH values of ceramic samples sintered in both of atmospheres have the consistent influence on the performance of the samples. The ceramic samples sintered in vacuum have a better bending strength and porosity, while ceramic samples sintered in Ar atmosphere have a better purity and toughness. When the pH value of aging process ranges from 3 to 5, the porous SiC ceramic samples sintered in Ar atmosphere have a stable thermal expansion coefficient.
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Hong Sheng AU - Kaihong Zhang AU - Ziqiang Li AU - Xiaoxue Liu PY - 2016/03 DA - 2016/03 TI - Influence of sintering atmosphere on the performance of porous silicon carbide ceramics BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology PB - Atlantis Press SP - 149 EP - 154 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-16.2016.28 DO - 10.2991/icmmct-16.2016.28 ID - Sheng2016/03 ER -