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Computation and modeling of microwave absorbing CuO/graphene nanocomposites
Author(s) -
Akinay Yuksel,
Kizilcay Abdullah O.
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25363
Subject(s) - materials science , composite material , composite number , microwave , graphene , reflection loss , layer (electronics) , nanocomposite , layer by layer , absorption (acoustics) , telecommunications , nanotechnology , computer science
In this study, the microwave absorption properties of single‐ and double‐layer composites were investigated for experimental and numerical solution in the 8.2 to 12.4 GHz for different thickness ( t m ) of composites. Herein, the single‐layer composites (R1: CuO and R2: CuO‐containing graphene nanoparticle [GNP]) and double‐layer composites that composed of R1 and R2 layers were fabricated. The first double‐layer composite labeled as D1 contains R1 as a matching layer and R2 as an absorbing layer and the second double‐layer composite labeled as D2 contains R2 as a matching layer and R1 as an absorbing layer. D1 and D2 produced composites were also designed numerically and denoted as M1 and M2, respectively. The measured and simulated reflection loss ( R L ) of double‐layer composites shows similar performance, and it was observed that the microwave absorbers obtained with experimental studies can be modeled using computer design. The M2 double‐layer design based on 5 mm of the matching layer and 2 mm of the absorbing layer shows a minimum R L value of −33.7 dB at 10.06 GHz and an absorption bandwidth of about 1.13 GHz below −10 dB compared to single‐layer composites.