KBa4Ir

KBa₄Ir is a complex ceramic compound containing potassium, barium, and iridium—a rare-earth transition metal oxide or intermetallic phase. This material is primarily of research interest rather than established commercial production, belonging to the family of high-entropy or multi-cation ceramics that researchers investigate for specialized electrocatalytic, superconducting, or refractory applications. Engineers and materials scientists would consider this compound when exploring novel ceramic compositions with mixed-valence metal centers for extreme environments, catalytic processes, or electronic applications where iridium's unique properties (high melting point, corrosion resistance, catalytic activity) can be leveraged at the ceramic scale.