Used in nuclear reactors as a neutron absorber due to its high thermal neutron absorption cross-section, making it valuable in control rods and emergency shutdown systems. Employed in the production of specialized ceramics and glass with enhanced resistance to heat and radiation. Plays a role in the development of high-strength permanent magnets when alloyed with neodymium-iron-boron magnets, improving their performance at elevated temperatures. Utilized in lighting applications, particularly in metal-halide lamps, where it contributes to bright, white light emission. Also used in research and development of advanced magnetic and electronic materials for high-tech industrial and defense applications.