Fabrication of a thin and lightweight microwave absorber containing Ni-coated glass fibers by electroless plating

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This study presents a thin and lightweight single-slab and two types of double-slab microwave absorbing composites by coating Ni to a glass fiber via an electroless plating technique. In contrast to conventional absorber production processes that use nano-conductive particles, such as carbon black, carbon nano-tubes, and carbon nanofibers, this newly proposed absorber applies a very thin conductive coating on a glass fiber through an electroless plating technique, involving mass production, to obtain the designed permittivity with excellent performance and a reflection loss below -10 dB (90% absorption) in the X-band (8.2-12.4 GHz) without using nano-conductive particles. The designed total thicknesses of the newly proposed single-slab and two types of double-slab absorbers correspond to 1.84 mm, 2.03 mm, and 2.29 mm, respectively. Although the newly proposed two types of double-slab absorbers are lightweight and very thin when compared to conventional absorbers, they exhibit excellent absorption performance in the almost X-band. The interlaminar shear strength was verified according to ASTM D-2344 by using a Ni-coated glass/epoxy composite to examine the mechanical performance of the proposed composite structure. From an electrical and mechanical performance viewpoint, the results confirm that the newly proposed absorber with Ni-coated glass fibers offers significant potential applications in stealth technology. (C) 2017 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2017-06
Language
English
Article Type
Article
Keywords

BEAM SHEAR TEST; X-BAND; CARBON NANOTUBES; EPOXY MATRIX; COMPOSITES; DISPERSION; BEHAVIOR

Citation

COMPOSITES SCIENCE AND TECHNOLOGY, v.145, pp.165 - 172

ISSN
0266-3538
DOI
10.1016/j.compscitech.2017.04.009
URI
http://hdl.handle.net/10203/224522
Appears in Collection
AE-Journal Papers(저널논문)
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