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Super Bio-Mags, Self Adhesive Spot Magnets,
Kit includes 4 spot magnets & 30 day adhesive pad supply
Magnetic Rare Earth Magnets
Rare-Earth Magnet: Rare Earth Magnets are any of several types of magnets made with rare-earth elements, such as rare-earth-cobalt magnets, which have coercive forces up to ten times that of ordinary magnets.
A rare-earth magnet is a strong permanent magnet made from alloys of rare earth elements, or lanthanide and actinide metals, with other metals. They are substantially stronger than ferrite or alnico magnets.
The magnetic field produced by rare-earth magnets can be well over 1.2 teslas. By comparison, ferrite or ceramic magnets typically exhibit around 50 to 100 milliteslas. Common applications of rare-earth magnets include computer hard drives, high-end speakers and bicycle dynamos. Some other applications of rare-earth magnets include experiments with diamagnetic levitation, the study of magnetic field dynamics, LSM launch technology (often found on Roller Coasters & Thrill Rides), and superconductor levitation.
Types of rare-earth magnets
NEODYMIUM MAGNETS
The most powerful and affordable type of rare-earth magnet is a neodymium magnet. Neodymium magnets are made of neodymium, iron and boron in the formula Nd2Fe14B. These magnets are found in almost every computer hard drive as well as in various types of speakers.
SAMARIUM COBALT MAGNETS
Samarium-cobalt magnets (SmCo5) are less common than neodymium magnets because they are more expensive and not as strong. These magnets are generally used in high temperature applications since they have a higher Curie point.
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