 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Types of materials
A classification of materials, according to their behaviour when faced with a magnetic field, could be the following:
| Type of Material | Characteristics |
| Non-magnetic |
Does not facilitate or permit passing of the magnetic Field lines.
Example: the Vacuum |
| Diamagnetic |
Low magnetic material. If a magnetic bar is placed near it, this will repel it.
Example: Bismuth (Bi), Silver (Ag), Lead (Pb), Water. |
| Paramagnetic |
Presents an insignificant magnetism. Attracted by the magnetic bar.
Example: Air, Aluminium (Al), Palladium (Pd), Molecular Magneto. |
| Ferromagnetic |
Magnetic by excellence or strongly magnetic. Attracted by the magnetic bar.
Paramagnetic above the Curie point (The Curie point of metallic iron is approximately 770 ºC). Example: Iron (Fe), Cobalt (Co), Nickel (Ni), soft Steel. |
| Antiferromagnetic |
Not magnetic, even under the action of an induced magnetic field.
Example: Manganes Oxide (MnO2). |
| Ferrimagnetic |
Lower magnetic degree than the ferromagnetic materials.
Example: Iron Ferrite. |
| Superparamagnetic |
Ferromagnetic materials suspended in a dielectric matrix.
Example: Materials used in audio and video tapes. |
| Ferrites |
Ferrimagnetic of low electric conductivity.
Example: Used as nucleus inductors for alternating current applications. |