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A Study on Microwave Absorption Properties of Carbon Black and Ni0.6Zn0.4Fe2O4 Nanocomposites by Tuning the Matching-Absorbing Layer Structures.

ABSTRACT: Microwave absorption properties were systematically studied for double-layer carbon black/epoxy resin (CB) and Ni0.6Zn0.4Fe2O4/epoxy resin (F) nanocomposites in the frequency range of 8 to 18?GHz. The Ni0.6Zn0.4Fe2O4 nanoparticles were synthesized via high energy ball milling with subsequent sintering while carbon black was commercially purchased. The materials were later incorporated into epoxy resin to fabricate double-layer composite structures with total thicknesses of 2 and 3?mm. The CB1/F1, in which carbon black as matching and ferrite as absorbing layer with each thickness of 1?mm, showed the highest microwave absorption of more than 99.9%, with minimum reflection loss of -33.8?dB but with an absorption bandwidth of only 2.7?GHz. Double layer absorbers with F1/CB1(ferrite as matching and carbon black as absorbing layer with each thickness of 1?mm) structure showed the best microwave absorption performance in which more than 99% microwave energy were absorbed, with promising minimum reflection loss of -24.0?dB, along with a wider bandwidth of 4.8?GHz and yet with a reduced thickness of only 2?mm.

SUBMITTER: Ibrahim IR 

PROVIDER: S-EPMC7035298 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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A Study on Microwave Absorption Properties of Carbon Black and Ni<sub>0.6</sub>Zn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> Nanocomposites by Tuning the Matching-Absorbing Layer Structures.

Ibrahim Idza Riati IR   Matori Khamirul Amin KA   Ismail Ismayadi I   Awang Zaiki Z   Rusly Siti Nor Ain SNA   Nazlan Rodziah R   Mohd Idris Fadzidah F   Muhammad Zulkimi Muhammad Misbah MM   Abdullah Nor Hapishah NH   Mustaffa Muhammad Syazwan MS   Shafiee Farah Nabilah FN   Ertugrul Mehmet M  

Scientific reports 20200221 1

Microwave absorption properties were systematically studied for double-layer carbon black/epoxy resin (CB) and Ni<sub>0.6</sub>Zn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>/epoxy resin (F) nanocomposites in the frequency range of 8 to 18 GHz. The Ni<sub>0.6</sub>Zn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> nanoparticles were synthesized via high energy ball milling with subsequent sintering while carbon black was commercially purchased. The materials were later incorporated into epoxy resin to fabr  ...[more]