ReAlO3

ReAlO3 is a rare-earth aluminate ceramic compound belonging to the perovskite family, where a rare-earth element (Re) combines with aluminum and oxygen in a 1:1:3 stoichiometric ratio. This material class is primarily investigated for high-temperature structural and functional applications, particularly in aerospace and electronics, where thermal stability and chemical inertness are critical. Rare-earth aluminates offer potential advantages over conventional oxides in extreme-environment applications, though ReAlO3 variants remain largely in the research and development phase, with interest driven by their refractoriness, potential thermal barrier coating functionality, and stability in harsh oxidizing or corrosive atmospheres.