Is there a non permeable permenate magnetic shielding material?

Question

It must shield a permenate magnet and the magnet can not be attracted to that material. It needs to shield a permanent magnet not an EMF.

Answer 1

Magnetic materials are, by and large, those that are comprised - at least in part - by ferrous substances. This means they contain iron or one of its oxides.

Non-magnetic materials, on the other hand, contain no magnetic particles - hence no ferrous materials, either.

To choose a material to "shield" a permanent magnet several things need to be adequately defined.
1. How much electromagnetic force does the magnet generate (i.e. how hard will it try to attract the shield)?
2. Is this for a rotating condition (now centripetal forces must also be considered)?
3. What are you trying to "shield" exactly - is it to prevent movement of the magnet, to prevent external fields from affecting the magnet, or to prevent the magnet's field from affecting material around it?

For practical use - the more common materials used to constrain permanent magnets are a dielectric like fibreglas (for very small magnets and uses), or aluminum (for larger objects and magnets).

Using a conductive medium like aluminum also allows the shield to act as a barrier for induced electromagentic effects (acting by distributing the effect over the shield surface and thereby protecting the magnet from inadvertently becoming de-magnetized).

Answer 2

All Diamagnetic Material will be non permeable magnetic material. You can also take a superconductor as an example. At below curie temperature the superconductor material will behave as diamagnetic which will not allow magnetic fiels to get or pass thro it

Next is wood, paper etc. they are also diamagnetic when their thichness increases it doesnot allow magnetic field, Any material with higher thickness will not allow magnetic field to enter thro it completely

The strenght of magnetic field will decrease propotionally to the increase in the thickness of the material

Iron is permeable but can shield magnetic field that is it can by-pass the magnetic field so that there will be a very lower or no field beyong any iron sheet. But if measured in iron, it have the field

Answer 3

Nope.