Metal coated fibers containing a sol gel formed porous polysilic

Details Metal coated fibers containing a sol gel formed porous polysilic Metal coated fibers containing a sol gel formed porous polysilic

1988-10-31

1990-06-19

Kendell, Lorraine T.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

4283155, 4283157, 4283171, 428375, 428376, 428378, 428379, 428380, 428381, 428384, 428388, 428389, 428391, 428392, 428398, B32B 326

Patent

active

049352962

ABSTRACT:
A metal-coated substrate, e.g., of glass, ceramic, or a hydroxy-functionalized material, wherein the improvement comprises a polysilicate, titania, or alumina interlayer between the substrate and the metal coating. The interlayer may have a porous microstructure, e.g., a polysilicate interlayer with an average pore size on the order of 50-150 Angstroms.
Such articles, e.g., in the form of metal-coated fibers, may suitably be employed as reinforcing media in material composites having utility in structural applications, such as EMI shielding elements.
Also disclosed is a corresponding method for forming a metal coating on a substrate by the provision of an interlayer of the above type. The interlayer may suitably be formed by applying to the substrate a sol gel dispersion of the polysilicate, titania, or alumina material, followed by drying of the applied dispersion.

REFERENCES:
patent: 2749255 (1956-06-01), Nack et al.
patent: 4096823 (1978-06-01), Schladitz
patent: 4097624 (1978-06-01), Schladitz
patent: 4297246 (1981-10-01), Cairns et al.
patent: 4614673 (1986-09-01), Bendig
patent: 4636440 (1987-01-01), Jada

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