Chaff comprising metal coated fibers

Details Chaff comprising metal coated fibers Chaff comprising metal coated fibers

1987-04-24

1990-07-17

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428378, 428389, 428401, B32B 900

Patent

active

049420909

ABSTRACT:
High strength composite fibers are disclosed comprising a core, e.g., of carbon or the like, and a thin and uniform, firmly adherent electrically conductive layer of an electrodepositable metal, e.g., of nickel or the like. The composite fiber can be produced by electrodeposition from an electrolyte onto the core but the procedure must use external voltages high enough both (i) to dissociate the metal at the core and (ii) to nucleate the metal through the boundary layer into direct contact with the core. Such composite fibers are chopped to shortened lengths to provide chaff, which is effective as a radar countermeasure.

REFERENCES:
patent: 3535093 (1970-10-01), Sara
patent: 3622283 (1971-11-01), Sara
patent: 3821024 (1974-06-01), Wilkin et al.
patent: 4132828 (1979-01-01), Nakamura
patent: 4162209 (1979-07-01), Butler
patent: 4371874 (1983-02-01), Bloom
patent: 4481249 (1984-11-01), Ebneth et al.
patent: 4600642 (1986-07-01), Lodge et al.
Butters Article--"Chaffs as Reflectors of Radar Waves", IEE PROC., vol. 129, Pt. F, No. 3, Jun. 1982.

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