Chaff comprising metal coated fibers

Details Chaff comprising metal coated fibers Chaff comprising metal coated fibers

1989-02-06

1990-12-11

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 29, 204 30, 204 351, 428367, 428378, C25D 554, C25D 706

Patent

active

049768280

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: 3622283 (1971-11-01), Sara
patent: 4048042 (1977-09-01), Quinn
patent: 4132828 (1979-01-01), Nakamura et al.
patent: 4162209 (1979-07-01), Butler
V. V. Ponomar et al., Characteristics of the Deposition of Electrochemical Coatings on Continuous Carbon Fibers, Izv. Akad. Nauk Mold. SSR., Ser. Fiz.-Tekh. Mat. Nauk, 1975, No. 2, 75-80.
E. H. Sargent and Co., Table of Periodic Properties of the Elements, 1964.
Brian C. F. Butters, "Chaffs as Reflectors of Radar Waves", IEEE RROC., vol. 129, Pt. F, No. 3, Jun. 1982, pp. 197-201.

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