OsFeO2N

OsFeO2N is an experimental ceramic compound containing osmium, iron, oxygen, and nitrogen—a mixed-metal oxynitride that belongs to the family of high-entropy and multi-element ceramics currently under research investigation. Materials in this class are being explored for applications requiring exceptional hardness, thermal stability, and chemical resistance at high temperatures, though OsFeO2N specifically remains primarily a laboratory compound without established commercial production or widespread industrial deployment. The inclusion of osmium (a refractory metal) suggests potential interest in extreme-environment applications, though such osmium-containing ceramics are typically not cost-competitive for conventional engineering compared to established alternatives like carbides or nitrides.