ErMg2

ErMg₂ is an intermetallic ceramic compound combining erbium (a rare earth element) with magnesium, belonging to the family of rare-earth magnesium intermetallics. This material is primarily of research and development interest rather than established industrial production, with potential applications in high-temperature structural components and specialty electronic or thermal management systems where the rare earth element's properties can be leveraged. The rare earth–magnesium intermetallic family is explored for advanced aerospace, nuclear, and high-performance thermal applications where conventional alloys reach their limits, though processing challenges and cost typically restrict current use to specialized or experimental contexts.