Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption

Salim H. Siddiki; Sukanta Das; Kartikey Verma; Love Dashairya; Sushrut Das; Vijay Kumar Thakur; G. C. Nayak

doi:10.1016/j.ceramint.2022.06.299

Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption

Salim H. Siddiki, Sukanta Das, Kartikey Verma, Love Dashairya, Sushrut Das, Vijay Kumar Thakur, G. C. Nayak^*

^*Corresponding author for this work

Biorefining And Advanced Materials Research Centre

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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Abstract

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.

Original language	English
Pages (from-to)	30260-30271
Number of pages	12
Journal	Ceramics International
Volume	48
Issue number	20
Early online date	2 Jul 2022
DOIs	https://doi.org/10.1016/j.ceramint.2022.06.299
Publication status	Print publication - 15 Oct 2022

Bibliographical note

Keywords

Cadmium substituted nickel ferrite
CNT
Microwave absorbing materials
PVDF
Solvothermal method

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10.1016/j.ceramint.2022.06.299Licence: CC BY-NC-ND

Second Revised Manuscript_22.06.2022Accepted author manuscript, 8.35 MBLicence: CC BY-NC-ND

Cite this

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title = "Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption",

abstract = "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.",

keywords = "Cadmium substituted nickel ferrite, CNT, Microwave absorbing materials, PVDF, Solvothermal method",

author = "Siddiki, {Salim H.} and Sukanta Das and Kartikey Verma and Love Dashairya and Sushrut Das and Thakur, {Vijay Kumar} and Nayak, {G. C.}",

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T1 - Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption

AU - Siddiki, Salim H.

AU - Das, Sukanta

AU - Verma, Kartikey

AU - Dashairya, Love

AU - Das, Sushrut

AU - Thakur, Vijay Kumar

AU - Nayak, G. C.

PY - 2022/10/15

Y1 - 2022/10/15

N2 - 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.

AB - 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.

KW - Cadmium substituted nickel ferrite

KW - CNT

KW - Microwave absorbing materials

KW - PVDF

KW - Solvothermal method

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M3 - Article

AN - SCOPUS:85133799208

SN - 0272-8842

VL - 48

SP - 30260

EP - 30271

JO - Ceramics International

JF - Ceramics International

IS - 20

ER -

Substituted nickel ferrite coated MWCNT/PVDF based epoxy nanocomposite for microwave absorption

Abstract

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