Used in high-strength permanent magnets, especially in combination with neodymium for applications in wind turbines, electric vehicles, and precision motors due to its ability to enhance magnetic performance at elevated temperatures.

Employed in mischmetal for lighter flints because of its pyrophoric properties.

Added to glass and ceramics to produce yellow, green, or rose-colored pigments and to filter out ultraviolet light.

Utilized in didymium glass for protective goggles in welding and glassblowing to absorb infrared and harmful sodium glare.

Plays a role in catalytic converters and petroleum cracking catalysts.

Investigated for use in next-generation refrigeration systems based on magnetocaloric effects.

Also used in alloys to improve properties such as strength and corrosion resistance.