Excellent Rare Earth Magnets
I am sure you must have heard about rare earth magnets as they are very useful these days. Basically, rare earth magnets are those elements which are made of the alloys of all the rare earth elements. Rare earth materials are permanent in nature and they are much stronger than alnico and ferrite. They were developed around 1970s and 80s and they have the magnetic field of 1.4 tesla. They are extensively brittle and can corrode easily. To prevent them from corrosion and chipping they are usually coated with a protective shield. The two most popular rare earth elements are samarium-cobalt and neodymium. In this article, I would mainly like to tell you about the essential features of these rare earth elements. Neodymium Magnet: It is also known as Neo, NdFeB and NIB. It comes under the category of permanent elements and was discovered in 1980s. It is the strongest magnet known to man is made of the alloy of iron, boron and neodymium. All these elements togeth...