- Tytuł:
- Enhanced Microwave Absorption of CNT Composites Mixing with Fe3O4 and Carbonyl Iron
- Autorzy:
-
Park, J. H.
Choi, J.
Lee, K.
Park, J.
Song, J. K.
Jeon, E. - Powiązania:
- https://bibliotekanauki.pl/articles/351106.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
magnetic powders
complex permittivity
complex permeability
composite materials
microwave absorption - Opis:
- We fabricated two different kinds of composite materials for absorbing microwave in a frequency range of 2 to 18 GHz using coaxial airline and thru-reflect-line (TRL) method. The composite materials having carbon nanotube (CNT) with carbonyl iron (CI) or iron oxide (Fe3 O4 ) were fabricated by mixing each components. Magnetic properties were measured by SQUID equipment. Complex permittivity and complex permeability were also obtained by measuring S-parameters of the toroidal specimen dispersing CI/CNT and Fe3 O4 /CNT into the 50 weight percent (wt%) epoxy resin. The real permittivity was improved by mixing the CNT however, the real permeability was same as pure magnetic powders. The CI/CNT had a maximum value of real permittivity and real permeability, 11 and 1.4 at 10 GHz, respectively. The CNT composites can be adapted to the radar absorbing materials, band width 8-12 GHz.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 3; 1513-1516
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł