Synthesis of Ni0.5Zn0.5Fe2O4-reinforced E-glass/epoxy nanocomposites for radar-absorbing structures

Siva Nagasree, P. and Ramji, K. and Ch, Subrahmanyam and Krushnamurthy, K. and Haritha, T. (2020) Synthesis of Ni0.5Zn0.5Fe2O4-reinforced E-glass/epoxy nanocomposites for radar-absorbing structures. Plastics, Rubber and Composites, 49 (10). pp. 434-442. ISSN 1465-8011

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The development of new radar-absorbing structures (RASs) with strong microwave absorption, fine thickness and adequate structural performance is imperative. Herein, nanocrystalline Ni0.5Zn0.5Fe2O4 was synthesised by a facile and effective sol–gel autocombustion technique. The structural and magnetic properties of ferrite were determined by various characterisation techniques, and E-glass/epoxy-based nanocomposites with different weight percentages of ferrite were fabricated by in-situ polymerisation. Further, electromagnetic properties were investigated to elucidate the possible absorption mechanism of the fabricated structures. The 4-mm-thick double-layered E-glass/epoxy/nickel–zinc ferrite composites exhibited reflection loss (RL) of <−10 dB for a bandwidth of 2.4 GHz and a maximum RL of −33 dB at 9.6 GHz. This performance was attributed to the larger magnetic loss and sufficient matching of electromagnetic parameters. This study provides a unique insight into the utilisation of Ni0.5Zn0.5Fe2O4 for producing lightweight and relatively thin RASs in the X-band at a low cost.

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IITH Creators:
IITH CreatorsORCiD
Ch, Subrahmanyam
Item Type: Article
Uncontrolled Keywords: autocombustion; E-glass/epoxy; electromagnetic property; nanocrystalline Ni0.5Zn0.5Fe2O4; Polymer composite; radar-absorbing material; reflection loss; X-band
Subjects: Chemistry
Chemistry > Inorganic chemistry
Chemical Engineering
Chemical Engineering > Oils, fats, waxes, gases
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 19 Jun 2021 06:08
Last Modified: 19 Jun 2021 06:08
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