Ferromagnetic β-MnBi alloy
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United States of America Patent
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Dec 19, 2017
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Sep 23, 2016
filing date -
Sep 23, 2016
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Abstract
A novel ferromagnetic phase of manganese-bismuth alloy has an NiAs-type unit cell structure, similar to that of Low Temperature Phase manganese-bismuth, but with manganese atoms populating interstitial sites. The novel phase, termed β-MnBi, possesses maximum magnetic coercivity at unusually high temperature. A method for forming β-MnBi includes annealing MnBi nanoparticles, for example by hot compaction, at temperature lower than 175° C.
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