Astronuc said:Materials in what way?
Do you mean materials added to ferromagnetic materials/alloys or surrounding them or juxtaposed?
The magnetic field from a permanent magnet is just that - a magnetic field, it is no different from the magnetic field produced from an electromagnet. The last three words in your sentence are hence redundant.mimic said:hi all, Please can you help list materials that can be used to Block, Reduce, Stabilize, Increase or react with the fields from perminant magnets
This is a misleading description - to say, without elaboration, that graphite is a "magnetic stabilizer". There is no material property known as magnetic stability. Graphite is a moderate diamagnet. When used in the right geometry, it provides a shallow potential well for a magnetically levitated object (again, only in a specific geometry), which results is better stability against mechanical perturbations.il start with
Graphite: A Magnetic Stabilizer
Coper: A Magnetic Inductor
Gokul43201 said:In any case, to add a little to your list :
Mu-metal : A very high permeability ferromagnetic alloy made primarily from nickel and iron. It is often used in magnetic shielding. ##
Bismuth : This the the strongest elemental diamagnet at room temperature. It's diamagnetic susceptibility is a little bigger than those of gold and graphite and a lot bigger than those of copper and water, yet about 5 orders of magnitude smaller than that of a superconductor (in the Meissner phase).
** It is the weakest known elemental diamagnet, with a susceptibility smaller than -10^-6.
## Note : In certain (eg : aerospace) applications where stronger shielding is required, superconductors are used for magnetic shielding. A superconductor is a perfect diamagnet with susceptibility of -1.
Some common materials that can affect fields from permanent magnets include iron, steel, nickel, and cobalt. These materials are known as ferromagnetic materials, which means they can be magnetized and create their own magnetic fields.
When these materials are placed near a permanent magnet, their atoms align with the magnet's magnetic field, increasing its strength. This results in a stronger magnetic field overall, as the combined fields of the magnet and the material reinforce each other.
Yes, non-magnetic materials can also affect fields from permanent magnets. Certain materials, such as copper or aluminum, have electrical conductivity and can produce their own magnetic fields when an electric current is passed through them. These induced magnetic fields can interact with the field of a permanent magnet, altering its strength or direction.
The strength of the interaction between a permanent magnet and a material depends on the distance between them. The closer the material is to the magnet, the stronger the magnetic field will be, and the further away it is, the weaker the field will be. However, the strength of the permanent magnet itself also plays a role in this interaction.
Yes, the shape of a material can affect its interaction with fields from permanent magnets. For example, a ferromagnetic material in the shape of a horseshoe can concentrate the magnetic field and make it stronger, while the same material in a flat shape would not have the same effect. This is due to the different ways the magnetic domains within the material are aligned and interact with the magnet's field.