Magnetic materials are substances that can be magnetized, meaning that they can be induced to produce a magnetic field or can be affected by an external magnetic field.
There are two main categories of magnetic materials: ferromagnetic and paramagnetic.
Ferromagnetic
Ferromagnetic materials, such as iron, cobalt, and nickel, are materials that have a strong tendency to be magnetized. These materials have a large magnetic moment, meaning that they have a large magnetic field associated with them.
Ferromagnetic materials are used in a wide range of applications, including motors, generators, and transformers.
Paramagnetic
Paramagnetic materials, on the other hand, have a much weaker tendency to be magnetized. These materials have a small magnetic moment and are only weakly affected by an external magnetic field. Examples of paramagnetic materials include aluminium, titanium, and platinum.
While paramagnetic materials are not as widely used as ferromagnetic materials, they have important applications in scientific research and medical imaging.
Diamagnetic
In addition to ferromagnetic and paramagnetic materials, there is a third category of magnetic materials known as diamagnetic materials. Diamagnetic materials are materials that are not naturally magnetized but can be induced to produce a magnetic field in the presence of an external magnetic field.
Examples of diamagnetic materials include copper, gold, and silver. Diamagnetic materials are not widely used in practical applications, but they have important applications in scientific research.
Magnetic materials have a wide range of applications and come in a variety of types and subcategories.
Ferromagnetic materials are the most widely used and have strong magnetic properties, while paramagnetic materials have weaker magnetic properties and are used in scientific research and medical imaging.
Diamagnetic materials are not naturally magnetised but can be induced to produce a magnetic field in the presence of an external magnetic field.