Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1979-07-16
1981-09-01
Kendell, Lorraine T.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
264147, 428323, 428328, 428384, 428457, 428463, 428520, B32B 516, B32B 2708, D02G 300
Patent
active
042872545
ABSTRACT:
Novel bi-metallic filamentary composites are produced by first forming a conjugate precursor filament comprised of an organic polymer together with particles of a first reducible metal oxide and particles of a second reducible metal oxide with the metal component of each of the two metal oxides being sinterable at a temperature which is below the melting point of the other. The structure of the precursor is characterized by a first longitudinally extending layer along its length which contains the particles of the first reducible metal oxide, and an adhering second essentially distinct longitudinally extending layer extending along its length which contains the particles of the second reducible metal oxide. The essentially discrete layers may be in a sheath-core arrangement or in side-by-side relationship.
Conversion to the bi-metallic filamentary product is accomplished by exposing the precursor filament to a reducing environment at a temperature and dwell time sufficient for effecting a reduction and sintering of the metal particles. The temperatures employed are in a range which is below the melting point of the metal particles and above the vaporization or decomposition temperature of the non-metal components of the precursor filament.
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Kendell Lorraine T.
Monsanto Company
Stanley Howard C.
Williams, Jr. James W.
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