Accession Number:

ADD014847

Title:

Composite Material for EMI/EMP Hardening Protection in Marine Environments.

Descriptive Note:

Patent Application, Filed 20 Jun 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Dixon, David S.
• Masi, James V.

Report Date:

1990-06-20

Pagination or Media Count:

15.0

Abstract:

This patent application is co-pending with related patent application entitled Method for Providing EMIEMP Hardening and Breakdown Protection in Composite Materials by the same inventors filed on the same date as this application. Background of the Invention The present invention relates to conductive composite materials and more particularly to composite materials for shielding against the effects of EMIEMP in corrosive marine environments. It is well known that existing methods of improving the electromagnetic interference EMI and electromagnetic pulse emp performance of lightweight non-corrosive, non metallic materials, so often used in todays commercial and military enclosures, have typically utilized coatings, platings andor separate metallic layers. Coatings and platings on present nonmetallic materials have not provided acceptable solutions in the areas of material adhesion, adequate shielding effectiveness and material electrochemical compatibility when interfaced with other materials.

Descriptors:

• *RADIATION HARDENING
• *COATINGS
• *OCEAN ENVIRONMENTS
• *COMPOSITE MATERIALS
• MATERIALS
• ADHESION
• COMPATIBILITY
• ELECTROCHEMISTRY
• NONMETALS
• ELECTROMAGNETIC INTERFERENCE
• LIGHTWEIGHT
• BACKGROUND
• SHIELDING
• RADIATION PROTECTION
• INVENTIONS
• ELECTROMAGNETIC PULSES
• LAYERS
• CONDUCTIVITY
• PATENT APPLICATIONS
• METALS
• CORROSION

Subject Categories:

• Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE