Everything You Should Know About Rare Earth Magnets

Magnets rare earth are permanent magnets composed from alloys of rare earth elements. Rare earth elements are seventeen chemical elements in the periodic table, primarily the lanthanide series and two, which are remotely similar. Rare earth magnets are considered to be the strongest permanent magnets available, due to their extraordinarily high tesla level, which averages at about 1.4. Their popularity began in 1966, due in part to military research that showed that these metals had the highest magnetization level ever discovered. In fact, these magnets are so strong that improper use has been known to lead to bodily injury. Due to their corrosive and brittle nature, they are normally coated for protection.

The use of the term "rare earth" has been considered misleading, due in part to the fact that these materials are not particularly rare. It refers more to the composition of the material and the difficulty in creating the application rather than to the availability of the actual material. Neodymium magnets are considered the best rare earth magnet, contrasting strength and quality of manufacture with cost and availability. These are made creating an alloy primarily from neodymium, iron, and boron, creating a stable, structurally secure alloy with the magnetic properties of the neodymium. Another popular choice is the samarium-cobalt magnet, which is the first of the rare earth magnets created. It is considered one of the weaker magnets and costs more to manufacture or purchase. Also notable, when the term "electromagnetic" or "electromagnetism" is used, it can be assumed that rare earth magnets or metals are used somehow in the application.

Magnets rare earth are applied to an abundance of technology we use today, such as computer hardware, audio speakers, fishing reels, motors in cordless tools, self-powered flashlights, refrigerators, air conditioners, and performance bicycle parts. They are also used in less common technological advances like electric guitar pickups, electrodynamic bearings, miniature figures used in gaming, and LED "throwies" for art and graffiti. The medical industry even benefits from their use in the form of MRI machines, which create imagery for the purpose of examining bone and tissue structures. They are even used in mobility applications such as mag-lev trains and roller coaster thrill rides.

In addition to product applications, magnets rare earth are also sold individually or in packs by many companies for consumer use as individually designated by the buyer. It is also becoming increasingly popular to make a homemade rare earth magnet. Instructions are available that teach someone how to grind down the alloys into a powder, jet mill the resulting product, melt the material at the required temperature, secure the material with rubber molding for shaping and finalizing. Many of these instructions even include coating and plating for protection and effective application

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