METHOD OF PRODUCING FERROMAGNETIC METAL NANOPARTICLES WITH SOLID INSULATION Russian patent published in 2016 - IPC B22F9/12 B22F1/02 B82Y30/00 

Abstract RU 2582870 C2

FIELD: nanotechnology.

SUBSTANCE: invention relates to production of nanoparticles with core of ferromagnetic metal and dielectric shell of aluminium oxide. Method according to version 1 comprises plasma recondensation in a current of inert gas of powder particles of aluminium oxide with surface coating of ferromagnetic metal with weight ratio from 25 to 75 wt%, while providing layer evaporation of said particles and subsequent formation of nanoparticles by primary condensation of clusters of ferromagnetic metal and condensation on them of aluminium oxide. Method according to version 2 comprises plasma recondensation in a current of inert gas powder mixture consisting of aluminium oxide powder with coating applied on its surface from ferromagnetic metal and powder of ferromagnetic metal.

EFFECT: uniform distribution of components in entire weight of produced nanoparticles.

3 cl, 1 tbl, 1 ex

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RU 2 582 870 C2

Authors

Uelskij Anatolij Adamovich

Gusejnov Shirin Latif Ogly

Malashin Stanislav Ivanovich

Anzhaurov Pavel Ivanovich

Chugunkina Olga Vadimovna

Dates

2016-04-27Published

2014-07-16Filed