What are hot-deformed NdFeB magnets?

Made from powder like bonded, fully dense like sintered, but they’re neither: Hot-deformed NdFeB magnets are a third type of widely produced NdFeB magnet that exhibits some of the best properties of both bonded and sintered varieties.

Adamas research indicates that the outlook for use of hot-deformed NdFeB magnets is promising, boding well for NdFeB powder demand in the years to come.

Hot-deformed NdFeB magnets are made from NdFeB powder produced by the rapid quenching method (e.g., melt-spun MQU powder from Neo Magnequench) that is formed into magnets using thermomechanical processes (e.g., cold pressing, hot pressing and hot extrusion) that may vary from company to company. As with bonded magnets, production of hot-deformed varieties produces minimal NdFeB waste, however, unlike bonded magnets, hot-deformed incumbents are fully dense meaning that they contain no bonding agents that would otherwise dilute the magnet’s maximum energy product.