Disc magnets hold a great deal of strength. Producing them calls for transforming natural elements into alloys. Rare earth metals, also called rare earth elements, are most often used . Neodymium is the preferred choice.
The rare earth metals take their name from the class labeled ?rare? in the table of elements. Ironically, these ?rare? elements occur in natural abundance. These rare earth magnets are quite powerful and thus very desirable.
Disc magnets made of neodymium have proven more powerful than any other types of magnets. A neodymium magnet of only a single millimeter in diameter carries enough power to completely erase a computer?s hard drive and destroy other magnetic media. While amazingly powerful, these magnets are also very brittle. If two neodymium magnets clash together, they will shatter explosively. They can cause severe injury to anyone penetrated by one of the shards. Another danger for someone working with these magnets is the possibility of spraining or breaking fingers if one loses one?s secure grip.
During recent times, rare earth discs have become more popular in various commercial uses. Ferrite and alnico magnets have diminished in use as the use of disc shaped neodymiums has grown. Their small sizes combined with their greater power make them extremely functional and convenient. Modern computer technology calls for the use of small, powerful magnets. So they have proven a boon to that industry.
Disc magnets with their extreme power, have come to be a staple of modern manufacturing. They are highly desirable and useful in today?s world.