Do we know the differences between neodymium, ferrite, and alnico magnets?

Neodymium, ferrite, and alnico magnets are part of the permanent magnet group. Permanent magnets are known for their permanent and long-lasting ability to maintain their magnetism. Despite being within the same type of magnets, they have different characteristics that allow us to differentiate them in order to choose the one that best suits our needs.

Neodymium magnets

Neodymium magnets are the most powerful magnets we can find due to their great attraction force despite their tiny size. Neodymium magnets are the most powerful magnets we can find due to their great attraction force despite their tiny size. Neodymium magnets are mostly used with a coating due to their low corrosion resistance.

Ferrite magnets

Ferrite magnets are the lowest cost permanent magnets, so they are usually the second most used, after neodymium magnets. Depending on the purpose for which they are to be used, we can find them with an isotropic or anisotropic magnetization. Ferrite magnets are usually used in the automotive sector.

Alnico magnets

Alnico magnets are permanent magnets with the highest resistance to high temperatures, acids, and solvents.This type of magnet stands out for its high magnetic induction and is therefore often used in the magnetic field measuring instruments Alnico magnets are usually used for applications in furnaces for clamping or detection.

Differences of neodymium, ferrite, and AlNiCo magnets

Depending on the purpose for which we are going to use the magnet, we will choose one type of permanent magnet or another. Depending on the purpose for which we are going to use the magnet, we will choose one type of permanent magnet or another. In case we have reduced space and we need a great magnetization force, we will use neodymium magnets.

On the other hand, if what we are looking for is a magnet with a high corrosion resistance to be placed outdoors or in places with a high presence of humidity, we will use ferrite magnets, in the same way as if we have a limited budget.

Finally, if what we need is an application that is in a space with a high temperature without the magnet losing its magnetizing strength, we will use alnico magnets. In addition, alnico magnets also have good corrosion resistance and long-term magnetic stability.