Dysprosium (Dy)

A heavy rare earth element used to preserve magnetic strength and operational stability in extreme heat environments. Dysprosium is essential for high-temperature NdFeB permanent magnets used in advanced aerospace propulsion, hypersonic systems, military actuators, and nuclear technologies.

95/100 — supply chain threat level: Critical

Heat-Resistant Magnets, Military Aerospace, Jet Engines, Nuclear Reactors