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Neodymium magnets are rare-earth magnets that can most commonly be purchased online via Amazon or Ebay. They may also be found at stores specializing in providing for the engineering industry, or specialize in magnets in general.
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What is neodymium?
Some applications of neodymium are:- the most important use of neodymium is in strong magnets as Nd2Fe14B- neodymium lasers are also common- neodymium is used as coloring additive for glass
What is a neodymium magnet made out of?
Neodymium NdFeB rare earth magnets are sintered by powder metallurgy with chemical composition of Nd, Fe, B and other minor elements. Neodymium Iron Boron (NdFeB) magnets are composed of Nd, Fe, B, Dy, Co and other minor elements. NdFeB neodymium magnets are the rare earth magnet with the highest magnetic performance and coercive force in the world.Production Process of Rare Earth Neodymium Magnets1. Vacuum MeltingCompositions of neodymium, iron , iron-boron, dysprosium and minor additions including cobalt , copper , gallium, aluminum and others are mixed and induce-melted to form Nd2Fe14B phase and other necessary structures required for high performance permanent magnets. The melting temperature reaches over 1300o C. Usually repeated melting is needed to be produce an even phase and structure distribution .2. CrushingThe ingots from vacuum melting process are crushed into coarse powder directly , or strip cast followed by HDDR processing into coarse powder .3. Jet MillingThe coarse powder further milled into required particles sized about 3 microns in diameter by a jet miller . Those particles become single-domain and anisotropic which are critical for producing a high coercivity magnet. Jet milling is the most effective way to mill the particles so far.4. PressingCompact the fined powder to re-produces block magnets. Usually a magnetic field is applied during pressing to align those anisotropic particles in order to produces maximum magnetic output in particular direction. There are two pressing methods, transverse and axial , depend on different application. Isostatic pressing is normally used to further densify magnets to 75-80% .5. Vacuum SinteringThe compacted magnets are sintered ate temperature above 1000 o C and for many hours to be solidifiedand compacted further more up to 99% by shrinking its body. A required microstructure between particles for high performance permanent magnets is also formed in this stage. Some following heat-treatments are needed to stabilize the magnets .6. MachiningShrinkage and distortion during sintering is too difficult to control adequately and magnets normally need at least a " clean up" grind on the surface. Small parts are cut or sliced precisely forma big block to meet the demanding tolerances and different shapes .7. Surface TreatmentVarious surface treatments can be applied on the final products . They include zinc, nickel ,Ni-Cu-Ni multi-layer, e-coating , epoxy and others. They provide different surface finishing, appearance and corrosion resistance, applicable in different application environments.
Where can you get a magnet?
For a new super strong magnet that has just been developed called rare earth neodymium magnets, there is a website in the related links below. I looked at it earlier and the prices were quite reasonable. But search the web to compare prices. I personally have a pile of magnets that I have scavenged over the years from mechanical devices. The magnetrons in microwave ovens in particular have two very strong relatively large magnets. Small electrical motors usually have permanent magnets in them. Speakers do as well.
How are magnets used in jewelry?
Magnitism was first used by sailors to help them when they are on journeys. Magnets now can be used in everyday life. There are washing machines which can close shut without you closing it. Credit cards have magnetic pull to them at the bootom line. It is there to make sure you have financial problems
Beta decay of neodymium-144?
Nope, Neodymium-144 undergoes Alpha decay to Cerium-140.
Are the magnets on back of speakers neodymium magnets?
no
What type of magnets are the strongest?
Neodymium Magnets
What is made with neodymium?
Magnets.
What is neodymium used as?
Permenant magnets.
What are some names of small magnets?
Refrigerator magnets, car magnets, neodymium magnets are names of small magnets.
What country exports magnets to the US?
there are a lot of neodymium magnets coming from china lately.
What magnets act like several combined bar magnets?
A "Neodymium magnet or Super Magnet".
What is in magnets?
There are three elements in a magnet: iron, boron, and neodymium.
What store can you buy Neodymium Earth Magnets?
http://magnitrf.ru/
What is neodymium?
Some applications of neodymium are:- the most important use of neodymium is in strong magnets as Nd2Fe14B- neodymium lasers are also common- neodymium is used as coloring additive for glass
What is the most strong natural magnet?
I toyed with neodymium magnets in engineering class at UMD. They were referred by my prof. as the strongest magnetic material yet discovered.
How do you make neodymium magnets?
you cant buy, you can find them in old hard drives.
