ErCo2B4Rh2

ErCo2B4Rh2 is an intermetallic compound combining erbium, cobalt, boron, and rhodium—a rare-earth transition metal boride system. This is primarily a research material studied for its potential hardness, thermal stability, and magnetic properties rather than a established commercial alloy. The material family of rare-earth metal borides is of interest in high-temperature applications and specialty ceramics, though ErCo2B4Rh2 specifically remains in the experimental phase with limited industrial deployment; engineers would encounter it in materials research contexts rather than production design.