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"Theoretical limit of its magnetic properties are more than twice the maximum reported magnetic energy product for a rare earth magnet" Call me a pessimist, bu
by sliken 9y ago
"Theoretical limit of its magnetic properties are more than twice the maximum reported magnetic energy product for a rare earth magnet"
Call me a pessimist, but if the theoretical is more than twice the actual for rare earths that means the new magnet might well be weaker than the old ... in reality.
It's doubly suspicious that they don't mention the theoretical vs reality for the rare earths.
- wbhart 9y agoThe theoretical maximum for a neodymium magnet is grade N64, i.e. 64 Mega-Gauss Oersted.
- emj 9y agoHmmm, from the summary: "The theoretical magnetic energy product for this iron nitride (Fe16N2) magnet is 130 mega gauss oersteds"
- deleted 9y ago[deleted]
- superkuh 9y agoI don't think the theoretical maximum is wrong. It's just that the ion implantation can't be scaled up, doesn't work for bulk materials, and results in only ~40% of the material in the desired Iron Nitride form which has that theoretical limit.
- dkastner 9y agoBut even if these magnets were only as powerful as rare earth magnets, the benefits to the environment are huge.
- kazinator 9y agoYou're spot on. Compare theoretical with theoretical, actual with actual, damn it.