Magnet, Neodymium Magnets - What Should You Know. Glossary of Terms Related to Magnets

In this glossary of terms, we will take a close look at neodymium magnets and the terms and phenomena associated with them. We will learn about the construction of these magnets, understand how their magnetic field works, and explore their practical applications. We will also discover the characteristics and properties that define neodymium magnets, such as coercivity, magnetic retention, and Curie temperature.

Join us in delving into the mysteries of this fascinating world of neodymium magnets and understanding why they are so important in today's technologically advanced society.

Neodymium Magnets

Permanent magnets made of neodymium, iron, and boron (NdFeB), characterized by a very strong magnetic field. They are the most commonly used permanent magnets, employed in many applications such as electric motors, speakers, generators, magnetic couplings, neodymium magnets for magnetotherapy, and many more.

Magnetic Field

The region around a magnet where magnetic interaction occurs. The magnetic field results from the movement of electric charges in the neodymium magnet and exerts magnetic forces on other magnetic objects.

Magnetism

The property of materials to attract other magnetic substances or induce electromagnetic effects. Magnetism is a natural phenomenon found in neodymium magnets, which have the ability to attract other magnetic materials like iron, cobalt, or nickel steel.

Magnetic Induction

The individual magnetic field produced by neodymium magnets. Magnetic induction is the value of the magnetic field at a specific point in space, measured in teslas (T). The higher the magnetic induction value, the stronger the magnetic field generated by neodymium magnets.

Magnetic Force

The force acting between two neodymium magnets or a neodymium magnet and another magnetic object. This force results from the interaction between the magnetic fields of these objects. The stronger the magnetic fields, the greater the magnetic force.

Magnetization

The process of creating or enhancing magnetic properties in a material. Magnetization of neodymium magnets can be achieved by exposing them to a strong magnetic field or by using electric current.

Coercivity

The property of neodymium magnets to maintain their magnetism in the presence of external influences. Coercivity measures the resistance of a neodymium magnet to losing its magnetization. The higher the coercivity value, the more resistant the neodymium magnet is to demagnetization.

Magnetic Polarization

The creation of magnetic orientation in a magnetic material. This process causes the magnetic domains in neodymium magnets to align in one direction, creating a strong magnetic field.

Penetration Depth

The distance to which the magnetic field penetrates a magnetic material. In the case of neodymium magnets, penetration depth depends on the type of material and the magnetic induction value. The higher the magnetic induction value, the smaller the penetration depth.

Curie Temperature

The temperature above which a magnetic material loses its magnetic properties. For neodymium magnets, the Curie temperature is approximately 310°C. When this temperature is exceeded, the neodymium magnet becomes weaker or completely loses its magnetic properties.

Magnetic Retention

The ability of a neodymium magnet to retain magnetism over time. Neodymium magnets are characterized by high magnetic retention, meaning they maintain their magnetic properties for a long time without significant loss of magnetism.

Magnetic Domains

Small internal regions in a magnetic material where atoms are aligned in parallel groups, creating microscopic magnets. Neodymium magnets have many such domains, contributing to their strong magnetic field.

Magnetic Susceptibility

A measure of a neodymium magnet's ability to generate a magnetic field around itself. Magnetic susceptibility depends on the geometry and magnetic properties of the material from which the neodymium magnet is made.

Magnetic Back Force

The force between two neodymium magnets that interact with each other. Back force results from the interaction between the magnetic fields of these magnets and can cause attraction or repulsion.

Magnetic Energy

A form of energy associated with the magnetic field generated by a neodymium magnet. This energy can be used to do work or converted into another form of energy in suitable applications.

Magnetic Conductivity

The property of materials to conduct a magnetic field. Neodymium magnets have low magnetic conductivity, meaning they do not conduct a magnetic field well but generate strong magnetic fields around themselves.

Paramagnetism

The property of materials to weakly attract to a magnetic field. Paramagnetic materials exhibit weak magnetic properties compared to neodymium magnets but can be attracted in the presence of a strong magnetic field.

Ferromagnetism

The property of materials to strongly attract to a magnetic field and maintain their own magnetism even after the external magnetic field disappears. Neodymium magnets are examples of ferromagnetic materials that exhibit strong magnetic properties due to prolonged magnetization.