Nd2Fe14B

Nd₂Fe₁₄B (neodymium iron boron) is a rare-earth intermetallic compound and the primary phase in sintered NdFeB permanent magnets, among the strongest magnetic materials commercially available. It is the dominant material in high-performance permanent magnets used across automotive, industrial, renewable energy, and consumer electronics applications where compact, powerful magnetic fields are essential. Engineers select NdFeB magnets over ferrite or alnico alternatives when space and weight constraints demand maximum energy density, though cost and thermal stability considerations often drive material selection trade-offs.