Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1989-12-11
1992-02-11
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283128, 4283155, 4283157, 428367, 428379, 428380, 428381, 428384, 428388, 428389, 428390, 428392, B32B 326
Patent
active
050875159
ABSTRACT:
An article comprising a non-conductive substrate which is coated with a sub-micron thickness of an oxidizable metal and overcoated with a microporous layer of an inorganic electrically insulative material. Optionally, the oxidizable metal-coated substrate may be sulfurized and/or 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, prior to overcoating with the microporous insulative layer. Also disclosed is a related method of forming such articles, comprising chemical vapor depositing the oxidizable metal coating on the substrate and contacting the metallized substrate with a sol gel dispersion of the inorganic electrically insulative material which then is dried under suitable conditions to form the microporous layer on the substrate. 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.
REFERENCES:
patent: 2682783 (1954-02-01), Drummond
patent: 2818351 (1957-12-01), Nack et al.
patent: 2920981 (1960-01-01), Whitehurst
patent: 3097941 (1963-07-01), Toulmin, Jr.
patent: 3129487 (1964-04-01), Whitacre et al.
patent: 3221875 (1963-07-01), Paquette
patent: 3544997 (1967-02-01), Turner et al.
patent: 3549412 (1970-12-01), Frye et al.
patent: 3725927 (1973-03-01), Fiedler
patent: 3765931 (1973-10-01), Kyri et al.
patent: 3952307 (1976-04-01), Nagler
patent: 4759950 (1988-07-01), Stevens
patent: 4942090 (1990-07-01), Morin
Butters, Bryan C. F., "Electronic Counter Measures/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.
Cashion Jr. Merrell C.
Hultquist Steven J.
Nakarani D. S.
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