Abstract
Hot corrosion behaviour of rare earth magnesium hexaaluminate (REMHA) based thermal barrier coatings (TBCs) such as i) lanthanum magnesium hexaaluminate (LMHA), ii) neodymium doped LMHA (LNMHA) and iii) LNMHA-yttrium aluminium garnet composite were investigated and compared with standard yttria stabilized zirconia (YSZ). The hot corrosion was carried out at 1050°C for 100h under molten sulphate-vanadate salts. REMHA shows superior hot corrosion resistance than YSZ. The hot corrosion reaction zone and the morphology of corrosion product are highly influenced by the rare earths in the coating. LNMHA has the best hot corrosion resistance and can meet the requirement of advanced TBC.
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.
