Is there any theoretical limit to the magnetic field strength of permanent magnets?
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Iron-nitride is a powerful magnetic material, being theoretically more than twice as strong as rare earth magnets. Built from two of the most common elements on Earth iron and nitrogen, these magnets are also much cheaper than rare earth magnets. These advantages give iron nitride magnets a potent niche, as they are both more effective and cheaper than traditional solutions.
Company Niron Magnetics has begun building partnerships to commercialize their iron-nitride magnets for REE-reliant applications like power generation, electric vehicles, and other key technologies. They have secured over $17.5 million dollars from the U.S. Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) program, where this funding will go towards scaling partner capabilities, production lines, and other aspects necessary for the deployment of REE-free super magnets. Niron Magnetics partners include several global device manufacturers such as Volvo, Western Digital, and others to ensure that this magnet technology seamlessly integrates into customer products as scale-up continues.
For the purpose of magnetic REPULSION maybe using the Meissner effect of SUPERCONDUCTORS could have better results than neodymium magnets... Superconductors would repeal the magnetic field of air core coils when the coils are turned "on", right? Superdiamagnetism...
What you think?
Still not sure if that would work the same way as with permanent magnets, but let's keep an eye on it, specially with the recent news about room temperature superconductors
This thread opened and slept before I was here....but I saw it today. Somewhere in the dusty cobwebs of my mind, be it HS honors physics or actual college physics courses, I fuzzily recall some formula or rule of thumb that defines the maximum field strength from naturally occurring elements.
however, powered magnets...it is within our grasp to now contain a matter/anti-matter annihilation in the engine room of a starship....should any of that ever exist.
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