Directing magnetic field lines by using diamagnetic material

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SUMMARY

The discussion focuses on utilizing diamagnetic materials, specifically Pyrolytic Graphite and Bismuth, to enhance the magnetic field strength in a configuration of four anti-parallel magnets. The goal is to redirect magnetic field lines to increase the magnetic flux density (B) at the surface of the magnets for energy harvesting applications. The feasibility of this approach is questioned, with references made to the Halbach array as a potential alternative. The user seeks to understand the effectiveness of diamagnetic materials in this context.

PREREQUISITES
  • Understanding of magnetic field concepts, specifically B and H fields.
  • Familiarity with diamagnetic materials and their properties.
  • Knowledge of magnet configurations, particularly anti-parallel arrangements.
  • Basic principles of energy harvesting using magnetic flux changes.
NEXT STEPS
  • Research the Halbach array and its applications in magnetic field manipulation.
  • Investigate the properties and applications of Pyrolytic Graphite and Bismuth as diamagnetic materials.
  • Learn about measuring magnetic flux density (B) in various configurations.
  • Explore energy harvesting techniques that utilize changing magnetic fields.
USEFUL FOR

Engineers, physicists, and researchers interested in magnetic field manipulation, energy harvesting technologies, and the application of diamagnetic materials in practical scenarios.

inceptioncat
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TL;DR
Is it possible to increase the magnetic field strength of magnets by directing the magnetic field lines with diamagnetic materials?
I want to improve the magnetic field strength at the surface of a magnet configuration by utilizing diamagnetic materials to guide the magnetic field lines. I have not the proper equipment to measure the effect myself but would this work?

This is the initial configuration with four magnets side by side anti-parallel
MagnetConf1.PNG


This would be the second configuration where the four magnets are separated by a diamagnetic material (orange) such as Pyrolytic Graphite or Bismuth.
MagnetConf2.PNG

The Idea would be to redirect the magnetic fields to take the longer path outside the magnets instead of going the short path.

Is this idea feasible?

Martin
 
Engineering news on Phys.org
Hi

Yes, I know the Halbach array and I will test this as well. But just out of curiosity I would like to know if Diamagnetic materials would work too.

I want to increase the magnetic flux density B at the top of the magnet. I would like to use this for energy harvesting so I get a big B-field and a fast change of the magnetic flux in a coil.
 

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