Heat treatable magnets having improved alignment through application of external magnetic field during binder-assisted molding

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United States of America Patent

PATENT NO 11515066
APP PUB NO 20190244734A1
SERIAL NO

16350363

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Abstract

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Improved manufacturing processes and resulting anisotropic permanent magnets, such as for example alnico permanent magnets, having highly controlled and aligned microstructure in the solid state are provided. A certain process embodiment involves applying a particular orientation and strength of magnetic field to loose, binder-coated magnet alloy powder particles in a compact-forming device as they are being formed into a compact in order to preferentially align the magnet alloy powder particles in the compact. The preferential alignment of the magnet alloy powder particle is locked in place in the compact by the binder after compact forming is complete. After removal from the device, the compact can be subjected to a subsequent sintering or other heat treating operation.

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Patent Owner(s)

Patent OwnerAddress
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC1805 COLLABORATION PLACE SUITE 2100 AMES IA 50010

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Iver E Ames, US 64 946
Byrd, David J Boone, US 5 17
Hu, Liangfa San Jose, US 9 0
Kassen, Aaron G Wyomissing, US 4 0
Kramer, Matthew J Ankeny, US 11 5
White, Emma Marie Hamilton Ames, US 5 0

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