Magnetic particles, methods of making, and uses thereof

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United States of America Patent

PATENT NO 11476022
APP PUB NO 20210065943A1
SERIAL NO

17000610

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Abstract

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In an aspect, a composition comprises a plurality of magnetic particles. The magnetic particles each independently comprise a nickel ferrite core having the formula Ni1−xMxPe2+yO4, wherein M is at least one of Zn, Mg, Co, Cu, Al, Mn, or Cr; x is 0 to 0.95, and y=−0.5 to 0.5; and an iron nickel shell at least partially surrounding the core, wherein the iron nickel shell comprises iron, nickel, and optionally M. In another aspect, a method of forming the magnetic particles comprises heat treating a plurality of nickel ferrite particles in a hydrogen atmosphere to form the plurality of magnetic particles having the iron nickel shell on the nickel ferrite core. In yet another aspect, a composite can comprise the magnetic particles and a polymer.

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Patent Owner(s)

Patent OwnerAddress
ROGERS CORPORATION2225 WEST CHANDLER BOULEVARD CHANDLER AS 85224

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yajie Brighton, US 50 220
Zhang, Li Luzhou, CN 2775 40019

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