The Effect of SiC Content on Pressureless Sintered Si₂ON₂-SiC Ceramic

Abstract:

The Si¬₂ON₂-SiC ceramic was fabricated by pressureless sintering method. In this paper we researched the effect of SiC content (50%, 70% and 90%) on the performance of silicon oxynitride bonded silicon carbide ceramics. Through testing and analyzing the SEM, XRD, density and porosity of the final silicon oxynitride bonded silicon carbide ceramic samples, the results show that: changes in SiC content not only affect the bulk density of the composites but also affect the phase composition and the microstructure of fracture surface. The most compactness experimental product is sintered at1500°C containing 50wt% SiC.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 27-30
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.27
• Online since: August 2012
• Authors: Zhu Xing Tang, Hui Hui Tan, He Zhang, Ke Zhou Xu, Ying Zhang
• Keywords: Microstructure, Pressureless Sintering, Si₂N₂O-sic Ceramic, SiC Content

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