Category: sintered neodymium magnets/ sintered NdFeB magnets/rare earth magnets

Advantages: high performance-price ratio; high magnetic energy, good machanical properties

Disadvantages: poor temperature characteristic; poor corrosion resistance,surface treatment needed; price is not stable

Neodymium-iron-boron magnets short as Nd-Fe-B magnets, NIB magnets, neo magnets or neodymium magnets. Following called as NdFeB magnets or neodymium magnets.

As a kind of rare earth magnets, neodymium magnets were developed from the year of 1983 , it is the most powerful rare-earth permanent magnet so far, and it sometimes called as super strong magnets. Neodymium magnets have the higher Br, and BH（max） than any other magnet formula. It has superior magnetic properties than all other magnetic materials , so it is widely used in industry production and daily life.

The outstanding characteristics for neodymium magnets are as follows

Higher magnetic properties than other magnets which realize the smallest size and lightest weight in designing devices. As a real powerful magnets,have strongest magnetic force.

Being mostly an iron based alloy, which make it easy to be oxidation or rust. To eliminate such a problem, the user should consider suitable surface treatment.

Being less prone to chipping during handing

Lower temperature coefficient of magnetic properties than ceramic but higher than SmCo type rare earth magnet. Therefore, this NdFeB type rare earth magnet will suffer irreversible loss at high temperature

The Nd-Fe-B permanent magnets are the next century magnets, that used in a wide range of industries including computer, automobile, electric machinary, electri-sound devices, automatic control, magnetic force mechanism, microwave communication, petrochemical industry, medical apparatus and equipment. The magnets are the ideal materials for the subminiature magnetic devices with high function.