Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1992-11-27
1994-10-04
Schwartz, Pamela R.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428359, 428364, 428367, 428375, 428379, 428381, 428384, 428388, 428392, B32B 900, B32B 1500
Patent
active
053525191
ABSTRACT:
An article comprising a non-conductive substrate having a sub-micron thickness of a sulfur-doped oxidizable metal coating thereon. Optionally, the sulfur-doped oxidizable metal-coated substrate may be further coated with (i) a promoter metal which is galvanically effective to promote the corrosion of the oxidizable metal, discontinuously coated on the oxidizable metal coating, and/or (ii) a salt, to accelerate the galvanic corrosion reaction by which the oxidizable metal coating is oxidized. When utilized in a form comprising fine diameter substrate elements such as glass or ceramic filaments, the resulting product may usefully be employed as an evanescent chaff. In the presence of atmospheric moisture, such evanescent chaff undergoes oxidation of the oxidizable metal coating so that the radar signature of the chaff transiently decays.
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Butters, Bryan C. F., "Electronic Countermeasures/chaff" IEEE Proceedings, vol. 129, Part F, No. 3, Jun. 1982, pp. 197-201.
Roman Bruce C.
Stevens Ward C.
Sturm Edward A.
Advanced Technology & Materials Inc.
Gray J. M.
Hultquist Steven J.
Schwartz Pamela R.
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