Permanent magnets with tailored texture and magnetic orientation

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United States of America Patent

PATENT NO 11862369
APP PUB NO 20220044851A1
SERIAL NO

17359556

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Abstract

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Some variations provide a permanent-magnet structure comprising: a region having a plurality of magnetic domains and a region-average magnetic axis, wherein each of the magnetic domains has a domain magnetic axis that is substantially aligned with the region-average magnetic axis, and wherein the plurality of magnetic domains is characterized by an average magnetic domain size. Within the region, there is a plurality of metal-containing grains characterized by an average grain size, and each of the magnetic domains has a domain easy axis that is dictated by a crystallographic texture of the metal-containing grains. The region has a region-average easy axis based on the average value of the domain easy axis within that region. The region-average magnetic axis and the region-average easy axis form a region-average alignment angle that has a standard deviation less than 30° within the plurality of magnetic domains. Many permanent-magnet structures are disclosed herein.

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Patent Owner(s)

Patent OwnerAddress
HRL LABORATORIES LLC3011 MALIBU CANYON ROAD LEGAL MALIBU CA 90265

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clough, Eric Santa Monica, US 13 37
Henry, Christopher Thousand Oaks, US 12 3
Laplant, Darby Santa Monica, US 13 3
Schaedler, Tobias Oak Park, US 12 24
Sucich, Amber Calabasas, US 8 2
Yahata, Brennan Santa Barbara, US 29 94

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