Electromagnetic-power-absorbing composite comprising a crystalline ferromagnetic layer and a dielectric layer, each having a specific thickness
US5925455A · kind A · utility
69Cited by
27References
19Claims
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Key dates
| Filing date | Aug 4, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/261
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A electromagnetic-power-absorbing composite, comprising a binder and a plurality of multilayered flakes dispersed in the binder. The multilayered flakes include at least one layer pair comprising one thin film crystalline ferromagnetic metal layer adjacent to one thin film dielectric layer. The multilayered flakes are preferably present in an amount in the range from about 0.1% to about 10% by volume of the composite. The composite is useful for absorbing electromagnetic power having a frequency in the range from 5 to 6000 MHz so as to produce heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.