Abstract
Corrosion behavior of calcium-magnesium-alumina-silicate (CMAS) coated on LaMgAl11O19/Yb2SiO5/Si environmental barrier coatings are studied. The results show that a dense layer of anorthite is formed under short-term corrosion at 1300 °C (>5 h). After 25 h, CMAS melt penetrates and dissolves the LaMgAl11O19 layer along the pores, crystallizing with the Yb2SiO5 front. At 1400 °C for 5 h, the CMAS melt reacts vigorously with the coating and penetrates the LaMgAl11O19 layer, forming large pores and the production of garnet solid solution and Ca2(Yb, La)8(SiO4)6O2. After 50 h, the Yb2SiO5 layer completely dissolves, leaving residual CMAS on top of the thermally grown oxide layer.
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.
