What is the Curie temperature?

What is the Curie temperature?

In simple terms, let the domain the disintegration of the Curie point temperature is. With the increase of temperature, due to increased thermal oscillations within a matter of elementary particles, the arrangement of the internal magnetic material of microscopic magnetic dipole moment disorder gradually, the macro performance for the material of magnetic polarization J decreases with the increase of temperature, when the temperature rises to a certain value, materials, the magnetic polarization J is reduced to 0. At this time the magnetic properties of magnetic materials become like air and other non - magnetic material, the temperature is said to the Curie temperature (TC). The Curie temperature Tc is only related to the composition of the alloy, and the microstructure of the material is not related to its distribution.

The Curie temperature of the magnetic material Tc represents the theoretical working temperature limit of the material. In fact, the actual working temperature of the permanent magnetic material Tw is much lower than that of the Tc.

The Curie temperature point is 320-380 degrees Celsius, Tc is an important parameter of magnetic materials, Tc high, the working temperature of the material can be improved, but also can improve the temperature stability of magnetic materials. Plus cobalt, terbium and dysprosium can improve the Curie temperature of magnetic materials, so in the neck force products (H, SH,......) Add a Tc material to improve the dy.

Most permanent magnet factory like your own magnet never demagnetization said, but the world all things are side, no demagnetization of permanent magnet in fact does not exist, demagnetization many.