A study on the best material for shielding a magnet

Magnets have the magnetic field otherwise called as pull force, due to which it attracts the things towards it. But often it come across the issue that we mounted magnet for a specific reason but the strong magnetic field cause affect on other electronic material. Then what is the solution for it, here you wander to shield a magnet. But are you sure that  a magnetic field of a Neodymium Magnet can be blocked at one side so that it will only pulls on other side.

So the First and foremost thing is that be sure Magnetic shielding does not in any way block a Neo Magnet’s magnetic field. There is no such material on the earth which can stop the effect of magnetic field traveling from right the Neodymium North Pole to its South Pole.

The main reason for the need of magnetic shielding is that almost all the magnetic fields are manmade, which are there in Neodymium Bar Magnets, solenoids, and some motors and transformers. These Neodymium Magnets are used in creative applications to create sound in the mechanism of speakers, record resonance images by MRI technology. But often the field interferes with some other sensitive electronic equipment, which need shielding.

Any ferromagnetic material, which consists of iron, nickel or cobalt, can work effectively for shielding Neo Magnet. As you know most steels are ferromagnetic metal. So, steel can work effectively for a redirecting shield. Another advantage of using steel as a shielding material is that it is cheap and easily available.

The next concern is what should be the thickness of the shield matters. This will definitely depend on the size and nature of the magnetic force of the Neo Magnet you are shielding. The shield material thickness should be remarkable. It should be up to a certain point to hold all more lines of flux. Thus it should be thick enough to hold the maximum flux possible.

It is advisable to pick a material for shielding depending on your particular shielding problem. MuMetal is the best shielding material for low field strength of sensitive electronics devices. For other applications involving large powerful Neodymium magnets, steel is considered as the best solution for Magnetic shielding.

It has been seen that in lower flux density fields, materials of high permeability offer a higher attenuation, while in higher Neo Magnet field densities, the MuMetal becomes saturated, often loses its capability. In a circumstance like this, steel can be proved as a good attenuation having a much higher saturation threshold.

For more information about various magnets, please visit http://www.usrareearthmagnet.com/