Neodymium is a material derived from lanthanide group Rare Earth elements which are known for their magnetic holding characteristics.
Two factors account for the increased strength of rare earth magnets:
#1. The crystal structure of the material easily magnetizes along a specific crystal axis but is very difficult to magnetize in other directions. During their manufacture so their magnetic axis all point in the same direction. The resistance of the crystal lattice to turning its direction of magnetization gives these compounds a very high magnetic coercively (resistance to being demagnetized).
#2. Atoms of rare earth elements have many magnetic moments because their electron structure contains many electrons that are unpaired, in contrast to other elements in which almost all of the electrons exist in pairs with opposite spins, so their magnetic fields cancel out.
However these N 52 neodymium magnets loses their magnetic characteristics as the temperature rises and looses all magnetism well below room temperature.
To combat this loss neodymium was combined with Iron and Boron to create an alloy.
This process came about in the 1980s an alloy consisting of neodymium iron and boron (ND1 EF14 B2) lanthanide elements where combined with such materials as Iron and boron to expand their magnetism to temperature well above room temperature and in many case to 600 degrees Celsius.
They are. The iron and boron increase the useful temperature range required in many applications such as renewable energy systems.
A neodymium magnet ranges in strength from what is called a grade N35 to N53. An n35 magnet is about 6 times more pull strength than the older ceramic type magnets of yesteryear
An N35 2”x2”x1” possesses a magnet pull strength of 210 lbs
An N52 magnet of the same size has a pull strength of 240 lbs
Useful for hard drives in computers cell phones
Another characteristic of these magnets is that they are malleable and may be cut and shaped into quite a few differing typs of shape
To this date neodymium magnets are still the most powerful and yet affordable magnet that there are .
The greater force exerted by rare earth magnets creates hazards that are not present with other types of magnets. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets, blood blisters, even to the level of causing broken bones.
Magnets allowed to ghttp://<a href=”http://pinnacleventuresmt.com/neodymium-magnets-vs-samarium-cobalt/”>supermagnet</a>et too near each other can strike each other with enough force to chip and shatter the brittle material, and the flying chips can cause injuries. These neodymium magnets can be extremely dangerous to children that may swallow them.Follow Me to the Next Remodel