Microwave absorption properties of graphene composite with magnetite multi-granular nanoclusters in X-band

Daniel Choi
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Authors:

Boo Hyun An
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Bum Chul Park
(Department of Materials Science and Engineering, Korea University)

Ji Sung Lee
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Lijun Pan
(Department of Materials Science and Engineering, Korea University)

Hamad Al Yassi
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Mariam Mansouri
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Hamda Al Shibli
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Tawaddod Alkindi
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Jung-Rae Park
(MinoTech Engineering Inc.)

Young Keun Kim
(Department of Materials Science and Engineering, Korea University)

Daniel Choi
(Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology)

Ferrite materials are generally used for microwave absorbing materials due to their permeability and dielectric property. Carbon-based materials, e.g., single or multiwall carbon nanotubes, graphene, carbon fiber, and carbon black can also be used as alternative conducting materials for the EMI shielding applications.
We prepared nanocomposites composed of magnetite multi-granular nanocluster (MGNC), conductive graphene sheet and carbon nanotube sheet. The graphene sheets were efficiently decorated with MGNCs by spray coating to prepare novel nanocomposites which can exhibit the microwave-absorbing performance. Effects of the various size and volume percentages of MGNC in the nanocomposites with two different matrix materials such as graphene sheet and carbon nanotube sheet on the radar absorbing performance were studied. The structural properties of the composites with varied granule size and cluster size were characterized. The behavior of microwave absorption of the composites was investigated by free space measurements in the range of 8.2 GHz — 12.4 GHz. Materials characterization was conducted by TEM, SEM and Raman spectroscopy.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.T60.5

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Bulletin of the American Physical Society

APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session T60: Poster Session III

Abstract: T60.00005 : Microwave absorption properties of graphene composite with magnetite multi-granular nanoclusters in X-band

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