Mu metal......

[gn0stik]

Apparently it's not the only material out there that does it either. There are a host of NiFe alloys that are used for magnetic shielding. But the really good shielding comes from a product called Metglas. It's saturation induction is only .57 tesla! It's magnetic permeability is 1,000,000 ? which means it would also make incredibly efficient cores. There are several properties of these materials, and so many variants I have no Idea how to go about selecting the best one for magnetic shielding.

[Clarky]

High grade steel will shield magnets pretty well too, it all depends on the configuration. I think materials are measured on permeability to magnetic flux and you use that value to determine the ideal shielding for an application.

Mu-metal is perfect because its no where near as permeable as other materials when exposed to magnetic fields. In other words it almost completely captures and conducts the flux from any magnet when in close proximity, obviously used for either protection from external fields i.e that may damage the contents of a hardrive, or to control or limit the effective distance of interaction between areas of magnetic fields, i.e one of the main principals behind perendevs motor.

[gn0stik]

Very interesting. Re perendev's motor. What's the best place to look up info on that. In fact, what's you guys' favorite sites.

[FreeEnergy]

see attachment

[gn0stik]

Uh, I don't get it.