Corrosion protection and EMP/EMI shielding

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Aerospace Engineering; (USA)

OSTI ID:6706601

Brahney, J H

The high-voltage electrical surges which are released from nuclear explosions are called electromagnetic pulses (EMP). Because they can have adverse effects on aircraft and other weapon system electrical circuits, the DOD has evaluated a variety of approaches to providing protection against EMP and electromagnetic interference (EMI). Researchers are now working to develop conductive sealants which can provide corrosion protection while meeting the EMP/EMI shielding requirements of military aircraft and missiles. Test results indicate that shielding effectiveness increases as dc resistance decreases, and shielding effectiveness does not appear to be a strong function of frequency above the 500-1000 MHz test frequency range. The correlations of resistance and shielding effectiveness necessitates that a low resistance exists across a joint or bond. Thus the researchers recommended that the conductive sealants successfully tested be used on existing and future aircraft and missiles where sealants can be liquid-applied. In addition to the test findings and their applications to the operational arena, a primary outcome of these tests is a set of recommended changes to selected military standards, specifications, and handbooks. These recommendations will be used as inputs to any proceedings conducted for the purpose of modifying those documents.

• OSTI ID: 6706601
• Journal Information: Aerospace Engineering; (USA), Vol. 10; ISSN 0736-2536
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ELECTROMAGNETIC PULSES
RADIATION PROTECTION
NUCLEAR EXPLOSIONS
AIRCRAFT
CORROSION RESISTANCE
INTERFERENCE
MILITARY EQUIPMENT
MISSILES
PROTECTIVE COATINGS
RELIABILITY
SHIELDING
COATINGS
ELECTROMAGNETIC RADIATION
EQUIPMENT
EXPLOSIONS
PULSES
RADIATIONS
450200* - Military Technology
Weaponry
& National Defense- Nuclear Explosions & Explosives