What is the difference between hysteresis loops of hard and magnetic materials and soft magnetic materials?
Magnetic material according to the material coercivity to distinguish whether the material belongs to permanent magnet material or soft magnetic material, the general distinction between the standard: 1-10KA / m between.
Soft magnetic material is characterized by large magnetic permeability, coercive force is small (Hc is about 1A / m), so hysteresis loop was elongated; hard magnetic material is characterized by large coercivity (Hc> 100A / m ), So hysteresis loop is wide, the area surrounded by a larger.
The hysteresis loop of the soft magnetic material is narrow and long, the residual magnetic induction intensity Br and the coercive force Hc are very small, the hysteresis loop of the hard magnetic material is wide and the Br and Hc are large
