Accession Number : ADD017555

Title :   Method for Improving Electromagnetic Shielding Performance of Composite Materials by Electroplating.

Descriptive Note : Patent, Filed 30 Jul 93, patented 9 May 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dixon, David S ; Obara, D ; Masi, James V ; Bradley, William G

Report Date : 09 May 1995

Pagination or Media Count : 4

Abstract : A method of improving the electromagnetic (EM) shielding performance of a composite material is provided. The composite material has conductive and semi-conductive filler particles suspended in a non-conductive resin. The filler particles can be up to 40 weight percent of the composite material. The composite material is electroplated with a conductive material onto a portion of its surface to improve the electrical connection between the conductive material and a portion of the filler particles. EM shielding performance can be further enhanced by injecting an exponentially decaying electromagnetic pulse through the composite material that has been electroplated. (MM)

Descriptors :   *COMPOSITE MATERIALS, *ELECTROMAGNETIC SHIELDING, *PATENTS, *ELECTROPLATING, SHIPS, AIRCRAFT, ELECTROMAGNETIC PROPERTIES, GRAPHITE, ELECTRICAL CONDUCTIVITY, CORROSION RESISTANCE, LIGHTWEIGHT, NICKEL, POLYCARBONATES, ELECTROMAGNETIC PULSES, POLYETHERS, FILLERS

Subject Categories : Electromagnetic Shielding
      Coatings, Colorants and Finishes
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE