High frequency properties of high voltage barium titanate-ferrite multiferroic metamaterial composites
| Autor: | Kevin A. O'Connor, Aric M. Pearson, Kelli M. Noel, Randy D. Curry |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Permittivity Materials science 02 engineering and technology Dielectric engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Ferrite core Barium hydroxide chemistry.chemical_compound chemistry Coating 0103 physical sciences Barium titanate engineering Magnetic nanoparticles Ferrite (magnet) Electrical and Electronic Engineering Composite material 0210 nano-technology |
| Zdroj: | IEEE Transactions on Dielectrics and Electrical Insulation. 23:2965-2969 |
| ISSN: | 1558-4135 1070-9878 |
| DOI: | 10.1109/tdei.2016.7736859 |
| Popis: | Permittivity and permeability parameters of dielectric composites made of ferrite particles coated in a barium titanate (BaTiO3) layer were analyzed and compared against composites of ferrite powders without a dielectric layer. A hydrothermal synthesis process combined barium hydroxide (Ba(OH)2) and titanium dioxide (TiO2) to form the coating of barium titanate around a ferrite core. These barium titanate ferrite composites particles are then combined with a unique binder to form a metamaterial. Discs of the metamaterial are characterized with an Agilent coaxial airline and dielectric measurement software to determine the permittivity and permeability responses within a frequency range of 200 MHz to 4 GHz. By comparing these results to previous work on ferrite composites, the merit of insulating the magnetic particles with a dielectric layer is examined. |
| Databáze: | OpenAIRE |
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