Magnesium-based alloy foam

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United States of America Patent

PATENT NO 11913092
APP PUB NO 20210277503A1
SERIAL NO

17258136

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Abstract

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Morphology, microstructure, compressive behavior, and biocorrosive properties of magnesium or magnesium alloy foams allow for their use in biodegradable biomedical, metal-air battery electrode, hydrogen storage, and lightweight transportation applications. Magnesium or Mg alloy foams are usually very difficult to manufacture due to the strong oxidation layer around the metallic particles; however, in this invention, they can be synthesized via a camphene-based freeze-casting process with the addition of graphite powder using precisely controlled heat-treatment parameters. The average porosity ranges from 45 to 85 percent and the median pore diameter is about a few tens to hundreds of microns, which are suitable for bio and energy applications utilizing their enhanced surface area. This invention based on powder-slurry freeze-casting method using camphene as a volatile solvent is also applicable for other metal foams such as iron, copper, or others to produce three-dimensional metal foams with high strut connectivity.

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Patent Owner(s)

Patent OwnerAddress
CELLMO MATERIALS INNOVATION INC808 GILMAN STREET BERKELEY CA 94710

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choe, Heeman Walnut Creek, US 36 381
Hong, Kicheol Busan, KR 9 1
Park, Hyeji Seoul, KR 18 22
Um, Teakyung Seoul, KR 2 0

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