Neodymiummagnets are also known as Neodymium-Iron-Boron or Nd-Fe-B or NIB super magnets since they are composed of these elements.
Neodymiummagnets, unlike previous high strength magnets like tiny cobalt-samarium magnets, are priced very low and can be afforded by educators and experimenters on their limited budgets.
Neodymiummagnets are very corrosive and hence have to be handled carefully.
Neodymiumsalts are used as a colourant for enamels.
He separated neodymium, as well as the elementpraseodymium, from a material known as didymium by means of spectroscopic analysis; however, it was not isolated in relatively pure form until 1925.
Neodymiummagnets are used for the transducers in the earphones included with Apple's popular iPod music player, as well as in numerous other high-fidelity headphones or buds.
Even a small neodymiummagnet is powerful enough to destroy the contents of a floppy disc to such an extent that the information is unrecoverable, a guarantee not present with techniques such as formatting the disk.
Neodymiummagnets are often strong enough to not only magnetizecolor CRT shadow masks, but also physically deform the mask itself.
Neodymium is one of the rarechemicals, that can be found in houses in equipment such as colour televisions, fluorescent lamps, energy-saving lamps and glasses.
Neodymium: Facts and details from Encyclopedia Topic(Site not responding. Last check: 2007-10-17)
Neodymium is a chemical element[Follow this hyperlink for a summary of this subject] in the periodic table[For more, click on this link] that has the symbol Nd and atomic numberatomic number quick summary:
Neodymium is present in mischmetal to the extent of about 18%.
The element may be obtained by separating neodymiumsalts from other rare earths by ion-exchange or solvent extraction techniques, and by reducing anhydrous halides such as NdF3 with calcium metal.
Neodymium exists in two allotropic forms, with a transformation from a double hexagonal to a body-centered cubic structure taking place at 863oC.
Commercial-grade neodymium is obtained from monazite sand, which is a mixture of phosphates of calcium, thorium, cerium, and is often 50% rare-earth by weight.
Neodymium is also used to make special glass that transmits the tanning rays of the sun but not the unwanted heat rays.
Neodymium is found in mischmetal for which it comprises about 18%.
Perhaps the main use for neodymium is as a colourant for glasses.
Neodymium containing glasses can be used for astronomical work to sharp bands for the calibration of spectral lines, filter for infrared radiation and as an alternative to ruby in lasers for producing coherent light.
Neodymium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder.
Neodymium has a strong absorption band centered at 580 nm, which is very close to the human eye's maximum level of sensitivity making it useful in protective lenses for welding goggles.
Neodymium is included in many formulations of barium titanate, used as dielectric coatings and in multi-layer capacitors essential to electronic equipment.
Neodymium is present in mischmetal to the extent of about 18%.
Neodymium is one of the more reactive rare-earthmetals and quickly tarnishes in air, forming an oxide that spalls off and exposes the metal to further oxidation.
Neodymiummetal is available commercially so it is not normally necessary to make it in the laboratory, which is just as well as it is difficult to isolate as the pure metal.
Neodymiummagnets are the strongest and most permanent magnets known to man. If they are not overheated, neodymiummagnets will lose only about 1% of their strength over 10 years - not enough for you to notice unless you have very sensitive measuring equipment.
I will be using the term "neodymiumglass" throughout this article and it is meant to encompass all of this type of glass.
The dichroic, (which means having or showing two colors), characteristic of neodymiumglass is attributable to the use of neodymiumoxide (Nd) in the glass batch.
The development of neodymiumglass is attributed to Leo Moser, of Moser glass, in collaboration with Professor Quasebart of Berlin and Professor Turner of Sheffield, England, around 1920.
With an abundance of raw materials, relatively low cost, and maximum magnetic characteristics Neodymium is well on its way to supplanting some of the more traditional magnetic materials in many of today's design applications.
Neodymiummagnets can be susceptible to demagnetization if exposed to extreme temperatures.
Neodymiummagnets also have a high iron content, which makes them susceptible to oxidation.
Our Neodymium High Output Magnetic Disks are used for deep penetration over hips, upper back, neck, etc. They may be secured with surgical tape or used in pairs (one against the skin, a second "sandwiched" outside garment) for easy mounting.
The Neodymium High Output Magnetic Disks are recommended for use on trigger points such as in the shoulder area.
The 1/2 inch Neodymium High Output Magnetic Disks are excellent for pain in the joints of fingers.
www.synergyforlife.com /neo.html (325 words)
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Neodymium is used in very powerful permanent magnets - Nd2Fe14B.
Neodymiummagnets appear in products such as in-ear headphones and computer hard drives.
Neodymium is never found in nature as the free element; rather, it occurs in ores such as monazite sand ((Ce,La,Th,Nd,Y)PO4) and bastnasite ((Ce,La,Th,Nd,Y)(CO3)F) that contain small amounts of all the rare earth metals.
NeodymiumIronBoron (NIB) magnets are extremely powerful, and allow effects to be seen that aren't possible with normal iron or ferrite magnets.
Neodymiummagnets can also be found in certain "in-the-ear" type headphones and upmarket in-car speakers.
There is a large Neodymiummagnet at the top, which applies a lifting force to a smaller magnet, which is placed in a slot in a block of diamagnetic graphite.
www.electricstuff.co.uk /neodym.html (1450 words)
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Then the neodymium gradually moves into the magnesium at the interface between the iron compound and the liquid magnesium.
Over time, the composition of neodymium in the magnesium rises at a fairly constant rate and is spread evenly throughout the liquid, while the width of the transitional, two-phase region increases.
In addition to recovering the neodymium, the leftover iron-boron scrap could be recycled as well, particularly for low-grade iron castings where composition isnt critical.