Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals.
　　 Like SmCo magnets, NdFeB magnets are produced by the process of powder metallurgical sintering. Sintered NdFeB magnets have the character of brittleness and hard,thus need to be handled carefully.This material is easy corrosive,so its surface is usually treatd with some special methods.The surface treatment method include Zine,Nickel,Tin,Silver,Gold plating,Phosphor and Spray Epoxy Resin etc.
　　Because of its very high resistance to demagnetization, Reasonable temperature stability, high energy for size and Excellent cost to performance ratio.NdFeB magnet is accepted in wide range of application:Magnetic separators, linear actuators, microphone assemblies, servo motors, DC motors (automotive starters), computer rigid disc drives, alternators , printers and speakers. 　　

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Attributes of NdFeB Material
Very high resistance to demagnetization

High energy for size

Good in ambient temperature

Moderately priced

Material is corrosive and should be coated for long term maximum energy output

Applications of NdFeB Magnets
Linear actuators
Servo motors
Magnetic separators s

Microphone assemblies

DC motors
Computer rigid disc drives, printers and speakers

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