Superparamagnetic iron cobalt alloy and silica nanoparticles of high magnetic saturation and a magnetic core containing the nanoparticles
US10910153B2 · kind B2 · utility
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Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Thermally annealed superparamagnetic core shell nanoparticles of an iron-cobalt alloy core and a silicon dioxide shell having high magnetic saturation are provided. A magnetic core of high magnetic moment obtained by compression sintering the thermally annealed superparamagnetic core shell nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.