Published March 24, 2010
| Version v1
Journal article
Enhanced microwave absorption properties of Fe3Al/Al2O3 fine particle composites
- 1. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000 (China)
Description
Fe3Al/Al2O3 composites were prepared by mechanochemical synthesis using a mixture of Fe2O3, Al and Fe as the starting material. Microwave characteristics were measured in the range 0.1-18 GHz. A reflection loss (RL) exceeding -20 dB in the frequency range 7.2-17.4 GHz was achieved for an absorber of 1.5-2.5 mm. An optimal RL of -45 dB was obtained at 8.9 GHz for an absorber thickness of 2.2 mm. The good microwave absorption properties resulted from a proper impedance match as a consequence of the insulator Al2O3 around Fe3Al.
Availability note (English)
Available from http://dx.doi.org/10.1088/0022-3727/43/11/115001Additional details
Identifiers
- DOI
- 10.1088/0022-3727/43/11/115001;
- PII
- S0022-3727(10)29770-X;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 43
- Journal Issue
- 11
- Journal Page Range
- [5 p.]
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42059429
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION; ALUMINIUM ALLOYS; ALUMINIUM OXIDES; GHZ RANGE 01-100; IMPEDANCE; IRON ALLOYS; IRON OXIDES; MICROWAVE RADIATION; MIXTURES; PARTICLES
- Descriptors DEC
- ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; DISPERSIONS; ELECTROMAGNETIC RADIATION; FREQUENCY RANGE; GHZ RANGE; IRON COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SORPTION; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS