Demagnetizálás
Demagnetizálás is the process of reducing or eliminating the magnetic field of an object. This can be achieved through several methods, primarily involving heating the object above its Curie temperature or subjecting it to a strong, alternating magnetic field that gradually decreases in strength. Heating a ferromagnetic material above its Curie temperature causes the thermal energy to overcome the magnetic forces that align the magnetic domains, rendering the material paramagnetic. Alternatively, an alternating magnetic field can be applied and slowly reduced. This field causes the magnetic domains within the material to repeatedly reorient. As the external field strength decreases, the domains are left in a more random orientation, thus reducing the net magnetization of the object.
The purpose of demagnetization varies widely depending on the application. In electronics, sensitive components can be