Abstract
The phase transition of thermally grown oxide (TGO) has been proven to be an important factor affecting the durability of EBCs. Yb2O3 and Yb2SiO5 can react with silica to form silicate, which can reduce the TGO thickness and extend the lifetime of EBCs. In this paper, the Yb2SiO5-Yb2O3-Si-SiC ceramic was prepared by tape casting combined with silicon reactive melt infiltration. The oxidation properties of the ceramic were evaluated at 1200–1400 °C. With the increase in temperature, the content of SiO2 in the oxide layer decreased and the content of Yb2Si2O7 increased. A dense and continuous Yb2Si2O7 layer was formed at 1400 °C. Yb2Si2O7 is formed at the edge of Yb2SiO5, then Yb3+ diffuses outwards, Si4+ diffuses inwards and gradually forms Yb2Si2O7 from the outside to the inside.
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 callSimilar Papers
More From: Journal of the European Ceramic Society
Disclaimer: 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.
