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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0244

    • Keywords

       

      Microwave absorbing structures; stealth materials; functional composites; electromagnetic absorption; mechanical characterization.

    • Abstract

       

      Objective of this study was to fabricate the microwave absorbing structures (MAS) with structural properties in X and Ku bands. Glass fibre reinforced plastic (GFRP) epoxy composites have excellent specific stiffness and strength to weight ratio. Milled carbon fibres (MCF) have been added as filler to bring functionality in GFRP composites, which causes dielectric loss. MAS were fabricated with variable wt% (2.5–7.5%) of MCF in glass epoxy composite system. The electromagnetic properties were measured in X and Ku bands using free space measurement system. Mechanical properties such as tensile strength, flexural strength and interlaminar shear strength of fabricated composites have been evaluated as per the relevant ASTM standards. The results show that the matching frequency of the microwave absorber shifts towards lower side of frequency band by increasing thickness, and reflection loss decreases with increase in MCF wt%.

    • Author Affiliations

       

      SHUBHAM MISHRA1 ASHISH DUBEY1 SANJAY AGARWAL2 ALOK K DIXIT1 N ESWARA PRASAD1

      1. D.M.S.R.D.E., Kanpur 208013, India
      2. Bundelkhand Institute of Engineering and Technology, Jhansi 284128, India

    • Dates

       
      Published
      7 December 2022
      Manuscript received
      29 December 2021
      Accepted
      18 July 2022
      Final version published online
      7 December 2022

  • Bulletin of Materials Science | News

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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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