CaRuO3

Calcium ruthenate (CaRuO₃) is a perovskite-structure ceramic compound combining calcium and ruthenium oxide, primarily of research and specialized industrial interest. It is explored in electrochemistry, catalysis, and thin-film applications where its mixed-valence ruthenium chemistry and electrical properties are advantageous; its high density and chemical stability make it relevant for environments requiring corrosion resistance or specific electrochemical behavior, though it remains less common than alternative perovskites in mainstream engineering. Engineers would select this material when ruthenium's catalytic or electronic properties are essential and perovskite structural stability is desired, particularly in prototype or performance-critical electrochemical devices rather than cost-sensitive high-volume applications.