Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption.
In: Ceramics International, Jg. 48 (2022-10-20), Heft 20, S. 30260-30271
academicJournal
Zugriff:
Metal-substituted spinel ferrite-based microwave absorbing materials (MAMs) are attracting significant attention due to their varied soft magnetic behaviour, and ease of synthesis. This work established the efficiency of Cd2+ substituted nickel ferrite coated MWCNT (with varied MWCNT loading) for X-band microwave absorption, in the presence of PVDF. The substituted ferrite was prepared with a facile solvothermal process. X-ray diffraction and vibrating sample magnetometer analysis confirmed the spinel structure of substituted ferrites and tuned magnetic behaviour of Cd2+ substituted ferrite structure, respectively. FESEM revealed a uniform coating of substituted ferrite on MWCNT and XPS confirmed Cd2+ substitution. Hybrid nanocomposites of ferrite coated MWCNT with PVDF, in the epoxy matrix, revealed superior microwave absorption for NiF-150_10 PV and CdNiF-150_10 PV with an absorber thickness of 3 mm in the X band. The absorption bandwidth with the RL below −10 dB reached 3.9 GHz and 3.6 GHz for NiF-150_10 PV and CdNiF-150_10 PV, respectively. The microwave absorption mechanism was discussed in detail. The developed NiF-150_10 PV and CdNiF-150_10 PV composites can be used as lightweight, low thickness microwave absorbers in the defense and telecommunication industries. [Display omitted] [ABSTRACT FROM AUTHOR]
Titel: |
Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption.
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Autor/in / Beteiligte Person: | Siddiki, Salim H. ; Das, Sukanta ; Verma, Kartikey ; Dashairya, Love ; Das, Sushrut ; Thakur, Vijay Kumar ; Nayak, G.C. |
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Zeitschrift: | Ceramics International, Jg. 48 (2022-10-20), Heft 20, S. 30260-30271 |
Veröffentlichung: | 2022 |
Medientyp: | academicJournal |
ISSN: | 0272-8842 (print) |
DOI: | 10.1016/j.ceramint.2022.06.299 |
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