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4 Ways in Which Rare Earth Magnets Are Used in the Modern World

Earth Magnets

Neodymium magnets are considered one of the strongest magnets on earth. Because of their strength, irrespective of their size, they are very effective. Ultimately, they are highly versatile and handy in our modern lives. Perhaps you might not be aware of it, but you are never far from neodymium magnets. If you are currently using your smartphone, then you could have one in your hand.

Ever since the introduction of neodymium magnets, they have had applications. That is why most people are now wondering where to buy rare earth magnets or, in other words, neodymium magnets. Several industries such as medical science, electric motor manufacturing, renewable energy, advanced technology, and others rely on the incredible strength of these neodymium magnets. Without them, most of the advancements that you are enjoying right now would not have been possible.

These rare earth metals are precious around your home and hobbies, including modelling, crafts, jewellery making, etc. Due to their extra strength, excellent performance, and resistance to demagnetisation, they can be transformed into various sizes and shapes, even as tiny as having 1mm diameter. It means that their usage is infinite.

What Are the Uses of Neodymium Magnets?

Due to their flexibility, neodymium magnets have different applications. The following are just some of them:

  1. Hard Disk Drives

When storing data in the hard disk drive, what really happens is that it will magnetise and demagnetise a thin film of ferromagnetic material in the disk. Every disk is divided into various tracks and sectors, and each one includes several tiny magnetic cells that are magnetised by the read/write head. These hard drive heads are created from ferrite covered by a fine wire coil.

When data is written on the disk, the coil is energised, forming a strong magnetic field, and the recording surface is magnetised. Strong magnets are also found in the actuator that puts the read/write head into its proper position.

  1. Dentures

You can use small neodymium magnets to attach dental corrective devices or keep replacement dentures together where there are many missing teeth. Due to their super strength, these tiny neodymium magnets are very effective. They can even resist corrosion when coated.

  1. Audio Equipment

Speakers use permanent magnets along with a coil that turns electricity into mechanical energy that makes the speaker cone move. As a result, the pressure of the air changes creating a sound.

On the other hand, microphones work in the opposite way. A diaphragm is affixed to a coil of wire which is placed within a permanent magnet. When the sound moves, the diaphragm on the coil also moves. As the coil moves around the magnetic field, an electric signal is generated, a typical feature of the original sound.

  1. Motors and Generators

Electric motors greatly rely on the combination of a permanent magnet and an electromagnet. A neodymium magnet is typically used in converting electric energy into mechanical energy. While a generator works inversely, it will transform mechanical energy into electric energy by letting the conductor move through the magnetic field.

  1. Door Catches

Hardware and metal apparatus companies buy rare earth magnets and use them for creating door catchers. Neodymium magnets are used in the making of magnetic door catches, which you can find in most residential, commercial, and public buildings. Countersunk magnets installed on the surface of a door can attract the magnet mounted on another wall. Strong neodymium magnets are capable of holding the weight of the door. Furthermore, the influence provided by the door can make the magnets separate easily.

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