Properties Of Neodymium Magnets

Neodymium magnets belong to the rare earth group of magnets. It is the strongest and most  popular permanent magnet in existence today. Neodymium is an alloy of Boron (B), Neodymium (Nd) and Iron (Fe) metals. When they are combined, they form a crystalline tetragonal chemical compound Ne2Fe14B. This is from the scientific point of view but to the average person Neodymium is simply a very durable metal that forms the strongest permanent magnet.


The term Neodymium is made up of the Greek word "Neos" which means new and "didymos" which is Greek for twin. The magnet was invented in the year 1980 and has grown in popularity through the years to become the most popular, strongest and affordable rare earth magnets available in the market. This magnet has some special properties that make it the favorite of all the rare earth magnets. Coercivity is the most desirable property of Neodymium. The quality of  a permanent magnet is measured by it ability to retain its magnetic fields when subjected to different conditions. Neodymium magnets due to their internal crystal structure have a very high resistance to any demagnetization energy. This property makes this rare earth permanent magnet very desirable for use in various industrial processes.





Another desirable property is the ability of Neodymium magnets to maintain a strong magnetic field even after the magnetizing force has been removed or dropped to zero. When a magnetizing force is applied onto a ferromagnetic material in a singular direction, the material should not change or lose the direction when the magnetizing medium is removed. The ability of Neodymium magnets to retain magnetism makes it the strongest magnet of all.

Temperature variations is an important factor when working with magnets. The highest operating temperature at which Neodymium magnets lose magnetism is referred to as Currie temperature. Neodymium metal has a low working temperatures and will catch on fire when subjected to hot working environments. What sets Neodymium magnets from other types of magnets is how powerful they are.


Neodymium magnets are small but their power cannot be matched by any other horseshoe magnet available in the market.  These magnets are not only popular for their desirable characteristics but also for their affordable prices. They are mass-produced in some Asian countries especially in China and can be purchase with ease. These magnets are used in medical equipment for example in MRI (magnetic resonance imaging) audio speaker, computer hard disks, DVD and CD players, cell phones, Magnetic toys, watches, among other electronic devices. Their popularity has increase in the recent years and have come to phase out other magnets that were in used int he past for example the Ferrite and Alnico magnets. With its impeccable properties, Neodymium magnets have earned their place as the workhorse of the magnetic family.