What advantages and disadvantages of neodymium magnet?

■ Advantage
It is as a practical magnet, creating a strong magnetic field has the magnetic properties of the best. In addition, I am superior in mechanical strength cracking or chipping less. That it is less expensive than samarium-cobalt magnet of the same rare earth magnet is also a big advantage. Production of a shape depending on the application by the machining is also possible, I am also facing the trial or the like in the small lot. I can make a magnet strong magnetic force even in small size magnetic properties is high.

■ Disadvantage
It is that the characteristic temperature is low. Less than 80 ℃ is the use conditions in the common product. In addition, since the very easy to rust, surface treatment of nickel plating, etc. are. Less than 200 ℃ has been popular types are also used in the current conditions, the characteristic temperature is lower compared with other magnets.