Magnets have many uses in domestic and commercial settings. The application ranges from electronic devices such as music systems to complex filtration systems used to separate metal ores in processing facilities. Just like other accessories, magnets vary in type in quality. There are ordinary permanent magnets made using readily available alnico and ferrite elements. On the other hand, you can also get rare earth magnets derived from peculiar earth elements. Rare earth magnets are like the other permanent magnets, only that they produce more robust magnetic fields, making them suitable for more demanding applications. The following piece discusses the strength and properties of rare earth magnets to help you understand them better:
Rare earth magnets stand out because of their crystalline structures. The structures give them immense magnetic anisotropy. Simply, magnetic anisotropy refers to a magnet's intrinsic property to provide electromagnetic waves and effects, regardless of the shapes and sizes of their grain. This means that rare earth magnets can deliver specific levels of magnetic strength with little interference from the individual grains making them up. The attribute comes in handy in applications where you want a robust magnetic force without using a large magnet. Rare earth magnets achieve this because their crystals magnetise along a specific axis but rarely in other directions. The magnetic force, therefore, concentrates in a particular direction.
Rare earth magnets come with unique atoms that differ from those of ordinary permanent magnets. These atoms experience elevated magnetic moments because of the structural composition of their atoms. Essentially, atoms in rare earth magnets are unpaired and free from each other. When the atoms produce a magnetic field, it does not cancel out as is the case in magnets with paired atomic structures.
Rare earth magnets hold the unpaired atoms in a special shell. The atoms are aligned to spin in one direction, maximising the magnetic force produced as they move.
Rare earth magnets have a ferrite element, which means that you can magnetise them to make permanent magnets. However, these agents can also lose their ferromagnetism below room temperature. This happens when you expose them to a curie temperature. For the best results, choose rare earth magnets combined with other elements such as cobalt, iron or nickel. They stabilise them and keep them from losing their magnetic qualities when the temperature falls below room temperature.
It is worth noting that rare earth magnets create strong magnetic waves that call for lots of care when handling them. You can keep yourself from harm by staying away from the space between two magnets.Share