3 years ago

Tailorable electromagnetic interference shielding using nickel coated glass fabric-epoxy composite with excellent mechanical property

M. Angappan, Pritom J. Bora, K.j. Vinoy, Praveen C. Ramamurthy, K. Vijayaraju

Publication date: December 2018

Source: Composites Communications, Volume 10

Author(s): M. Angappan, Pritom J. Bora, K.J. Vinoy, Praveen C. Ramamurthy, K. Vijayaraju

Abstract

Glass fibre fabric was coated with nickel using electroless plating technique. A suitable pre-treatment method was adopted to make the glass fabric surface catalytic. The glass fabric was coated to various thicknesses of nickel by varying the plating parameters. The effect of coating thickness on electromagnetic interference (EMI) shielding and absorption was studied in J (5.8–8.2 GHz), X (8.2–12.4 GHz) and Ku-(12.4–18 GHz) bands. The optimum coating thickness of 400 nm would be desirable to achieve shielding effectiveness of 30 dB in J, X and Ku-band (efficiency level of 99.9%). The absorption co-efficient was found to be dominant for coating thickness of ~ 32 nm. Further, a 3 mm thick epoxy-glass laminate was made by embedding a single layer of nickel coated glass fibre fabric with a coating thickness of ~ 6 µm. It was observed that in such a composite laminate with Ni coated fabric, EMI SE of ~ 50 dB could be achieved. It was also observed that the mechanical properties of the laminate bearing a Ni coated layer is better than the plain laminate as a result of improved interfacial characteristics in the presence of active Ni.

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.