Neodymium magnet is a rare earth permanent magnet that is composed of an alloy of iron, boron and neodymium in varying proportions to achieve certain quality characteristics. The combination of the designated components provides the magnet with a pleasant appearance with a metallic sheen. Neodymium magnets are very popular today. They are widely used in almost all areas of industry and manufacturing. Most often, these magnets are used in electronics and medicine, as well as for various household needs. In addition, highly reliable neodymium magnets are indispensable in the manufacture of hard drives and other computer parts.
The main characteristics of neodymium magnets are deservedly considered the creation of a huge magnetic potential at a small size and the highest resistance to demagnetization. It is estimated that over 10 years, a neodymium magnet with regular use can demagnetize by more than 2 percent. It is also important to note one more advantage - such magnets are completely immune to temperature changes. They do not change their characteristics in different climatic conditions, with frequent changes in the level of humidity and ambient temperature.
Neodymium magnets cannot be used at temperatures above 80 degrees. This is highly likely to cause a complete loss of all declared properties and characteristics. In addition, it is not recommended to subject the material to mechanical processing - drilling, drilling. The exception is grinding, which is a mandatory procedure for the production of neodymium magnets. After grinding, the magnets acquire an aesthetic appearance. They are also coated with a thin layer of gold or a copper-nickel compound to protect them from corrosion. Neodymium can quickly oxidize in the open air, therefore sputtering is a prerequisite for long-term operation of the magnet.
