The NdFeB magnet is the strongest permanent magnet in the world. It is a tetragonal crystalline compound composed of neodymium, iron, and boron.
This type of magnet is currently the most widely used rare-earth magnet, finding extensive applications in electronic products such as hard drives, mobile phones, headphones, and battery-powered tools.
Sintered NdFeB magnets are the highest-volume and most widely utilized product in the NdFeB family.
They are manufactured via powder metallurgy and can be categorized into seven grades—N, M, H, SH, UH, EH, and TH—based on the material’s intrinsic coercivity.
Commercially produced sintered NdFeB magnets can achieve a remanence of up to 1.45 T and an intrinsic coercivity of up to 2786 kA/m. Their operating temperature ranges from 80°C to 200°C, depending on the coercivity grade.
Sintered NdFeB magnets are prone to oxidation and corrosion, so surface treatment is essential. Depending on the specific requirements of the operating environment, surface treatment methods such as phosphating, electroplating, electroless plating, electrophoretic deposition, and vapor deposition can be applied. Common surface coatings include zinc, nickel, nickel-copper-nickel, and epoxy resin.
This type of magnet is currently the most widely used rare-earth magnet, finding extensive applications in electronic products such as hard drives, mobile phones, headphones, and battery-powered tools.
Sintered NdFeB magnets are the highest-volume and most widely utilized product in the NdFeB family.
They are manufactured via powder metallurgy and can be categorized into seven grades—N, M, H, SH, UH, EH, and TH—based on the material’s intrinsic coercivity.
Commercially produced sintered NdFeB magnets can achieve a remanence of up to 1.45 T and an intrinsic coercivity of up to 2786 kA/m. Their operating temperature ranges from 80°C to 200°C, depending on the coercivity grade.
Sintered NdFeB magnets are prone to oxidation and corrosion, so surface treatment is essential. Depending on the specific requirements of the operating environment, surface treatment methods such as phosphating, electroplating, electroless plating, electrophoretic deposition, and vapor deposition can be applied. Common surface coatings include zinc, nickel, nickel-copper-nickel, and epoxy resin.