Wire and cable

Details Wire and cable Wire and cable

1990-10-30

1993-05-11

Wyszomierski, George

Stock material or miscellaneous articles

All metal or with adjacent metals

Having composition, density, or hardness gradient

428623, 428629, 428632, 428661, 428674, 428457, 439887, H01B 102, H01B 718

Patent

active

052099873

ABSTRACT:
An article of manufacture, for example a conductor for an electrical wire or cable, is provided with a refractory coating preferably formed from a refractory metal or semi-metal oxide or nitride and preferably deposited on the surface of the article by a vacuum deposition process such as a sputter ion plating method. Adhesion of the refractory coating, especially at high temperatures may be improved, and migration of the substrate metal through the coating may be suppressed by varying the stoichiometry of the coating through its thickness and/or by the provision of a metallic or refractory intermediate layer. The articles are particularly suitable for use in circuit and signal integrity cables.
The vacuum deposited refractory layer may constitute the sole refractory, or additional refractory layers may be deposited by other methods e.g. a sol-gel method.

REFERENCES:
patent: 4123595 (1978-10-01), Chang
patent: 4399199 (1983-08-01), McGill et al.
patent: 4481237 (1984-11-01), Bosshart et al.
patent: 4503130 (1985-03-01), Bosshart et al.
patent: 4535033 (1985-08-01), Stecura
patent: 4588655 (1986-05-01), Kushner
patent: 4985313 (1991-01-01), Penneck et al.

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