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Bio-template synthesis of hollow Fe3O4fibers and their enhanced microwave absorption performance in Ku-band
- Source :
- Integrated Ferroelectrics. 172:66-73
- Publication Year :
- 2016
- Publisher :
- Informa UK Limited, 2016.
-
Abstract
- A novel kind of microwave absorption composite in Ku-band with low cost, low density and strong absorption was prepared through Bio-template carbonization and solvothermal method. The phase structures and morphologies of the composite had been characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The microwave absorption properties of carbonized kapok fibers and Fe3O4/kapok fibers were measured by vector network analysis (VNA). When the sample thickness is 1.5 mm, the Fe3O4/kapok fibers have an optimal absorption peak value of about −24.1 dB at 17.4 GHz and its effective absorption bandwidth lower than −10 dB reaches 2.4 GHz (from 15.6 to 18.0 GHz). The reflection loss results indicate that the Fe3O4/kapok fibers possess higher microwave absorption in the Ku-band. A possible mechanism of the improved microwave absorption performance of the composite was discussed.
- Subjects :
- 010302 applied physics
Materials science
Carbonization
Scanning electron microscope
Reflection loss
Composite number
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Ku band
Electronic, Optical and Magnetic Materials
Control and Systems Engineering
Phase (matter)
0103 physical sciences
Materials Chemistry
Ceramics and Composites
Electrical and Electronic Engineering
Composite material
0210 nano-technology
Absorption (electromagnetic radiation)
Microwave
Subjects
Details
- ISSN :
- 16078489 and 10584587
- Volume :
- 172
- Database :
- OpenAIRE
- Journal :
- Integrated Ferroelectrics
- Accession number :
- edsair.doi...........3955c8cfe5f9abe3fd61246a17a1cf34