Abhilash, GP and Sharma, D and Bose, S and Shivakumara, C (2023) PANI-wrapped BaFe12O19 and SrFe12O19 with rGO composite materials for electromagnetic interference shielding applications. In: Heliyon, 9 (3).
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Abstract
We report electromagnetic interference (EMI) shielding efficiency in the PANI-wrapped BaFe12O19 and SrFe12O19 with rGO composites. Barium and strontium hexaferrites were synthesized using the nitrate citrate gel combustion method. These hexaferrites were polymerized in situ with aniline. The PANI-coated ferrite-based composite materials were developed along with reduced graphene oxide (rGO) in acrylonitrile butadiene styrene (ABS) polymer, and their shielding effectiveness was assessed in X-band frequency range (8.2–12.4 GHz). The reflection (SER) and absorption (SEA) mechanism of shielding effectiveness was discussed with the different rGO concentrations. The results reveal that 5 wt% of rGO with PANI-coated barium and strontium hexaferrite polymer composites exhibit shielding efficiency of 21.5 dB and 19.5 dB, respectively, for 1 mm thickness composite. These hexaferrite polymer-based composite materials can be used as an attractive candidate for EM shielding materials in various technological applications. © The Authors
| Item Type: | Journal Article |
|---|---|
| Publication: | Heliyon |
| Publisher: | Elsevier Ltd |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | BaFe12O19; EMI shielding; In-situ polymerization; Magnetic properties; Polymer composites; SrFe12O19 |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 15 Mar 2023 06:11 |
| Last Modified: | 15 Mar 2023 06:11 |
| URI: | https://eprints.iisc.ac.in/id/eprint/80972 |
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