NaF3

NaF3 is a ceramic compound belonging to the fluoride family, though its specific crystal structure and phase diagram are not standard in conventional materials databases—it may represent a metastable or research-phase composition. Fluoride ceramics are explored for applications requiring high thermal stability, low thermal conductivity, and chemical resistance in extreme environments, particularly in nuclear fuel processing and specialized optical systems. Engineers would consider fluoride ceramics as alternatives to oxide ceramics when corrosion resistance to molten salts or reactive environments is critical, though their relative scarcity and processing challenges compared to conventional ceramics limit mainstream adoption.