Abstract
SiC bricks were adopted as lining materials in waste incinerator because of their good slag resistance and mechanical performance. However, the process of waste treatment by an incinerator will produce H2O (g), which can severely corrode the SiC bricks and form Si(OH)4 (g) at high temperature. Due to extremely poor sinterability of SiC, the bonding phases have crucial influence on properties and must be generated in SiC based products during preparation. In this article, the Al-Si alloy was introduced into SiC bricks to form in-situ rod-shaped AlN polytype bonding phase under coke embedding atmosphere at 1700 ℃, which contributed to decrease apparent porosity, improve mechanical properties and water vapor corrosion resistance. The AlN polytype bonded SiC bricks performed good water vapor corrosion resistance because the mullite formed after vapor corrosion. The vapor corroded SiC bricks witnessed an increase of COMR after thermal shock test from 1.82 MPa to 28.46 MPa with the additive amounts of Al-Si alloy reaching to 12 wt %.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
