Why is there a limit to producing high magnetic fields?

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Discussion Overview

The discussion centers on the limitations of producing high magnetic fields, specifically addressing why steady-state magnetic fields are generally capped around 10 tesla, while pulsed fields can reach higher intensities. The scope includes theoretical and practical considerations related to electromagnet design and the physical stresses involved.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the reasons for the limitation on producing magnetic fields above 10 T.
  • Another participant notes that pulsed magnetic fields can reach about 30 T, particularly in neutron scattering experiments, but highlights challenges with steady-state fields, including extreme stresses and heating.
  • A third participant mentions that in a 10 tesla solenoid, the outward magnetic pressure can reach approximately 400 atmospheres, suggesting serious theoretical limitations on the design and materials used.

Areas of Agreement / Disagreement

Participants present multiple perspectives on the limitations of high magnetic field production, indicating that there is no consensus on a singular explanation or solution.

Contextual Notes

The discussion does not resolve the specific theoretical limitations or the implications of the stresses and heating mentioned, leaving open questions regarding the material and engineering challenges involved.

heman
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Hi,

My problem is very basic.i want to know why we can't produce preferably more than 10 T Magnetic field and why?
 
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Electromagnets are often solenoids, long cylindrical coils of wire. The outward magnetic pressure in a 10 tesla solenoid is I believe 400 atmospheres. Very serious theoretical limitations.
 
thx very much tide and crosson..i got that...
 

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