The main magnetic NdFeB permanent magnetic materials can be indicators are: remanence (Jr, Br), coercivity (bHc), intrinsic coercivity (jHc), energy product (BH) m. We usually refer to permanent magnet materials, magnetic properties, refers to these four. Other magnetic materials, magnetic properties of indicators are: Curie temperature (Tc), can work temperature (Tw), remanence and intrinsic coercivity temperature coefficient (Br?, jHc?), reply permeability (祌ec.), Demagnetization curves of square degrees (Hk / jHc), high-temperature magnetic properties, as well as by the uniformity of magnetic properties and so on.
In addition to others magnet, NdFeB permanent magnet material's physical properties include density, electrical conductivity, thermal conductivity, thermal expansion coefficient, etc.; mechanical properties include the Vickers hardness, compressive strength (tension) strength, impact toughness and so on. In addition, the magnetic properties of the materials are important indicators of one, that is, the surface state and its resistance to corrosion.