Neodymium Magnets


Neodymium Magnets, the most destructive magnets! which is made from an alloy of neodymium, iron, boron. It is said to be most dangerous and more powerful than any other magnets available in the world. We knew that it is one of the rare earth magnets and it is developed by General Motors in the year 1982. Neodymium magnets is a permanent magnet which is 1000 times stronger than we assume it seems and this magnet is been manufactured in different shapes and sizes(cubes, discs, spheres, plates, rings), It is one of the most expensive rare earth magnets and is considerably said to have high coercivity, saturation magnetization(Js ~1.6 T or 16 Kg) by its potential where typically having 1.3 teslas. The structure of neodymium magnet is Tetragonal Crystalline structure(Nd2Fe14B) where the magnetic property ranges from N24 to N55. We can categorize them by lager and smaller one, the smaller magnets are used in some electronic devices like Computer hard drives and headphones and the larger magnets are rarely used because the larger magnets are not recommended.

Neodymium Magnets

Neodymium Magnets

Neodymium magnetic properties are completely lost when it is heated above 180° Fahrenheit (80° C). They are bounded with more power than Ceramic Magnets, Alnico Magnets, or Lower Grade Neodymium Magnets( Grade N28, N35, N38, or N40 ).when the two magnets are mate with each other. High magnetic property contain neodymium magnets are more Expensive and dangerous to handle. It is used in the engine construction of Remote Controlled Model Aircraft. Be safe and be aware of using this magnets and do not allow children to play with these, because It could cause more damages and even let you to death if they swallow these small piece magnets. And also keep the magnet 12” away from every magnetic based storage devices like Desktop, laptop, hard driver, floppy disks, cassette tapes, VHS tapes and always wear preventive measures like Goggles when handling this type of magnets. Never recommend the children to play with it.

Neodymium Magnets

Neodymium Magnets

The above figure clearly explains you how power the neodymium magnet is? due to high Coercivity and magnetic property. Never ever under estimate the power of this rare earth magnet which is more strong and powerful. The production of Neodymium magnets can be made in two ways. They are

  1.  Classical powder metallurgy or sintered magnet process.
  2.  Rapid solidification or bonded magnet process.

Magnetic Properties Of Neodymium

  • It is considerably said to have high magnetic property within.
  • Having high coercivity by its nature.
  • The magnetic property is high in Neodymium magnets is because of the dependency on alloy composition, micro structure and manufacturing technique employed on it.
  • The property is considerably high in NdFeB alloy(Tetragonal Crystalline structure) than in Samarium cobalt(SmCo).

Grades

The grades are predicted only according to the high energy i.e.High magnetic flux output per unit time. The stronger neodymium magnets ranges from N35 to N52 which indicates the higher grades or values. The grade ranges of neodymium magnets are listed below.

  • N35-N52
  • N33M-N48M
  • N30H-N45H
  • N30SH-N42SH
  • N30UH-N35UH
  • N28EH-N35EH

Properties Of Neodymium Magnets

Several neodymium properties are discussed here with the complete guidance. It is said to have four properties which matters the strength and coercivity. They are

  1.  Remanence (Br) – It is used to measure the strength of the magnetic fields.
  2.  Coercivity (Hci) – It gives you the material’s resistance to become demagnetized.
  3.  Energy Product (BHmax) – It measures the density of magnetic energy.
  4.  Curie Temperature (TC) – It measures the temperature at which the material material loses its magnetism.

Impacts

When the neodymium magnets are dropped from the top roof to the bottom where there is an another magnet, tends to demolish them into a bit of pieces. Smaller they look, the more dangerous they become when the magnets are reaching nearby. It is having capability to crush things inbetween and have a huge impact on them..

Neodymium Magnets

Neodymium Magnets

The magnet expert use Goggles for safety precaution while demonstrating. I recommend you to be safe and caution while handling the Neodymium magnets. Do not try this at home. Take this into measure and never ever try this!!

Are You Eager To Know How Strong The Neodymium Magnet Is?

We have done a lot of experiments with neodymium magnets and comeback to know the massive power of it. It is more dangerous and expensive rare earth magnets in the world. Let me demonstrate the experiments with some objects like apple, iphone and watch, after which you could recognize the original power that incorporates. Then i displayed some gif images loaded with fun which could make you interest in watching and let you know how strong neodymium magnet is bounded with. Have fun watching the things with the experiments.

Experiment 1

Several Magnet experts tried using apple in their experiment by placing it inbetween the two strong neodymium magnets. They waited to see what the miracle is yet to happen when the two magnets are moved slowly. Let me show you how it works? as below.

Neodymium Magnet

Neodymium Magnet

  •  Inorder to carry out this experiment, they placed a wooden block in a table above which the two neodymium magnets are kept at some distance.
  •  Inbetween the magnets, they placed an apple in the center and inparallel the magnets are gradually moved nearby.
  •  When the magnet expert moved the magnet gradually towards an apple, they could visualize the strong power that neodymium magnet is capable of.
  •  Neodymium magnets are more powerful and dangerous to use.

In the above gif image, you could see the experiment that expert magnet carried out to know the effect of that magnet by nature.

Experiment 2

Magnet expert had not stopped trying it only with the apple but also with the electronic devices like Iphone. Likewise the apple, they placed an iphone inbetween the magnets and moved the magnets gradually towards an iphone. Watch the impact of an iphone on the below described statement. Before that i would show you some gif images to visualize how the process is been carried and demonstrated?

phone_0

  • The experiments are demonstrated as like above method by placing a magnet above the wooden block and an iphone inbetween the magnets.
  • After experimenting with an iphone, magnet expert had no surprise furthur because the same thing happens to an iphone as like an apple.
  • The magnet crushes an iphone into pieces when they met each other.

From which you could visualize the bad impacts that neodymium magnet could provide it to the things or an object when the magnets are gradually moved towards each other.

Experiment 3

This experiment is with an object i.e watch to make sure the capability of neodymium magnet. Nothing is gonna change and surprise the magnet expert despite done just for a sake.

 

By watching the above experiments, we could recognize that this magnet is 1000 times stronger than it looks. Even a small neodymium magnet is dangerous. Keep away from children. The magnet experts carried out this demonstration by pursuing some safety precautions like Goggle glass. Don’t Try This At Home.

Caution

  •  Be safe while handling the magnets and do not allow children to play with neodymium magnet.
  •  Even the small piece of this magnet could tend the children to death when they swallow it.
  •  So keep away this dangerous magnet from the children to avoid bad odds.
  • The magnet could even make your hand into pieces when is inbetween them. So be careful while handling it.
Neodymium Magnets

Neodymium Magnets

Never estimate the power of neodymium magnets. Be caution and safe, please handle with care.

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