today’s hi-tech world. These magnets are used in hard drives, audio speakers, fishing reel brakes, bicycle dynamos, permanent magnet motors and in various electronic devices like mobile phones, DVD player, digital cameras, timer switches, clocks and watches.
These Rare magnets are made of the alloys of various rare elements found on the earth’s surface. Two of the most popular Rare earth magnets are samarium-cobalt magnets and neodymium magnets. These magnets were discovered around 1970s and since then they have gained a lot of popularity.
They are various advantages but some disadvantages are also associated with them. They are hazardous for your health that is why they must be handled with great care and protection. You must always wear protective gloves while handling the magnets because they can pose great dangers to your health. The magnetic field of this magnet can also destroy your television, your computer monitor and floppy disks. If the magnets are swallowed by children, they can even die of suffocation.
These magnets are very strong and they have a good magnetic field but they are vulnerable to cracks, chipping and corrosion. So, now let me tell you about some important Rare Earth Magnets.
Rare Earth ring magnets are becoming very popular these days and they are available in different sizes and grades. Ring magnets are mainly made of strontium ferrite and they are greatly useful for various different demonstrations. These magnets are slightly flexible and they are not as strong as cube magnets.
Rare Earth cube magnets are formed with the help of 216 individual magnets. These magnets create a very strong magnetic field and they are stronger than ferrite and ceramic magnets. Theses magnets are widely used in the loud speakers of your home audio system and car audio system. Some special cube magnets help you to get rid of stress, depression and various other ailments.
3. Neodymium Rare Earth Magnets
Neodymium is a very precious rare earth magnet that is the strongest rare earth magnet. It has a strong magnetic field is composed of boron, neodymium and iron that helps in forming the Nd2Fe14B tetragonal crystalline arrangement.
Rare Earth Sphere Magnets are in the form of small balls and a single magnet has more than 10 lbs of pulling force. You can purchase such magnets in various different colors, grades, dimensions and coatings. Such magnets are usually coated with silver, gold, nickel, zinc, black, Epoxy.
These are some essential things that you must surely know about Rare Earth magnets.