Neodymium Magnet and Attraction Towards It
Neodymium magnets for sale
Most of us use a neodymium magnet a single form or the other; we just don't know that we do. There are numerous uses and benefits of this amazing piece of human invention which we are unaware of. One can easily find a neodymium magnet in the hard disk of a computer, headphones, and loud speakers for example. And these magnets are immensely powerful and invite us to do things where normal iron or ferrite magnets prove ineffective.
What are neodymium magnets? Are they a Martian metal that originated from outer space? To your disappointment, there isn't any such conspiracy theory. It's a rare earth magnet - an alloy including elements such as Iron, neodymium and boron. The chemical formula for this unique alloy is Nd2Fe14B. More regularly one is likely to find crystalline structures in tetragonal shape in relation to a neodymium magnet. This alloy is well the strongest permanent magnet available
This neodymium magnet compound was discovered by General Motors Corporation, China Academy of Science and Sumitomo Special Metals in 1982. Then there was a great must find a suitable cost effective option to SmCo permanent magnets due to the rising costs.
Today the these magnets are manufactured via two production forms - sintered (powdered) and bonded magnet process. Approximately 45000 to 50,000 tons of sintered magnets are produced yearly in comparison to 5500 tons of bonded magnet. The real difference can be attributed to the demand and supply issue. The remanence i.e. the measure of strength of magnetic field of an magnet is high for any sintered magnet. The Curie temperature (named after Pierre Currie, famous French physicist and husband of Marie Curie) could be the temperature at which the magnet loses its magnetism is same for both forms of neodymium magnets (approx 310 to 400o C). The Curie temperature of those magnets can be increased to 800o after alloying them with terbium and dysprosium.
The neodymium rare earth magnets can also be known as neodymium iron boron magnets. No prizes for guessing why. Other popular names where it is referred by is neodymium rare earth magnets. The initial aspect about these magnets is because have an exceptionally high resistance to get demagnetized. This makes them very beneficial for various mechanical along with industrial applications. Like a small size magnet form is incredibly powerful, the neodymium magnets are portable. And in all likelihood the best aspect is because they are affordable causing them to be perfect for lab experimentation and research. It's possible to easily find neodymium disc magnets and neodymium ring magnets.
The negative effects of these magnets is they are very corrosive as the name indicated; hence need to be handled with absolute caution. A few these magnets used with little care can readily snap your finger. So it needs to be used with caution and a spotlight. They can catch fire at high temperatures but work effectively in conditions where low climate is maintained.
There are immense purposes of neodymium rare earth magnets. You can use them in healthcare industry (in MRI machines), in security equipment including alarms and switches, to hard disk drive of computers.