Shielding magnetics to prevent interaction

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Discussion Overview

The discussion revolves around methods to shield or prevent interaction between two magnets, specifically focusing on avoiding repulsion when placed in proximity to each other. Participants explore various materials and concepts related to magnetic shielding, including theoretical and practical applications.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about materials that can prevent magnetic repulsion between two magnets without using diamagnetic materials.
  • Another suggests using ferrous metal shields to contain the magnetic field and prevent interaction.
  • Some participants mention the concept of a Faraday shield, although it is noted that Faraday cages do not work for static magnetic fields.
  • Mu-metal and superconducting shields are proposed as potential solutions for magnetic shielding.
  • A statement is made regarding the limitations of materials in blocking magnetic fields, emphasizing that magnetic fields can only be redirected and not removed.
  • A new participant asks about preventing magnets from attracting iron, indicating a desire for further clarification on the topic.

Areas of Agreement / Disagreement

There is no consensus on a definitive method to prevent magnetic interaction, with multiple competing views and suggestions presented by participants. The effectiveness of proposed solutions remains contested.

Contextual Notes

Participants express uncertainty regarding the effectiveness of various shielding materials and their interactions with magnetic fields. There are unresolved questions about the practical implementation of the suggested methods.

CynAmon
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Could anybody tell me, if there is anything that can distract magnetic field, but not in the way diamagnetics do. I.E. when I put two magnets on table N|S S|N they will start repulsing themselves, and i want to know, what can i put between them, to avoid reaction of repulsing, so there will be magnetA N|S "something" magnetB S|N and nothing will happen, they will just remain on their places.
Of course in both situations distances between magnets are the same.
 
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You would put ferrous metal shields in place. The shields would each return the magnetic field of a magnet from N-S, without letting the field out of the immediate area of the magnet. You could use "C"-shaped shields, for example, one around each magnet.
 
Faraday shield.
 
dst said:
Faraday shield.

No, Faraday cages don't work for static magnetic fields. E.g. a copper shield won't have effect at all on the magnetic field.
 
Mu-metal? Superconducting shields?
 
From http://www.mumetals.com/

"There is no known material that blocks magnetic fields without itself being attracted to the magnetic force. Magnetic fields can only be redirected, not created or removed. To do this, high-permeability shielding alloys like MUMETAL are used. The magnetic field lines are strongly attracted into the shielding material. "
 


f95toli said:
No, Faraday cages don't work for static magnetic fields. E.g. a copper shield won't have effect at all on the magnetic field.
Hello every body!

I am new here. can anybody teach me how to post my question or how to check whether they are answered or not?Regarding this discussion, i would like to ask you all that how can we prevent the magnet from attracting the iron.
and sorry for using the quots of f95 toli.
 

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