The temperature or Curie point is the temperature value at which a ferromagnetic material loses its magnetic properties.
The heat supplied by a thermal source causes a derangement in the arrangement of electrons that make up the material, providing a momentary loss of magnetic properties. This temperature is specific to each material . The following table shows the Curie temperature of some types of substances.
- Demagnetization of materials;
- Study of terrestrial magnetism.
Piezoelectric materials are those that generate electrical energy when compressed. The term piezo comes from the Greek and means pressure, so the word gives the idea of electricity generated by pressure . The piezoelectric characteristics of a material are lost above the Curie temperature.