O2 F2 Y2

O₂F₂Y₂ is a rare-earth oxide fluoride ceramic compound combining yttrium, oxygen, and fluorine in a mixed-anion structure. This material belongs to the family of rare-earth oxyf luoride ceramics, which are primarily investigated in research settings for their potential in high-temperature and specialty optical applications. The mixed anionic framework makes it potentially valuable for thermal barrier coatings, solid-state laser hosts, and advanced ceramic matrices where conventional oxides or fluorides alone are insufficient.