Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1990-10-09
1993-05-25
Straub, Gary P.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428679, 428680, 428687, 428935, 205104, B32B 1500, C25D 356
Patent
active
052139077
ABSTRACT:
A dense, smooth, ductile, hard, highly reflective, corrosion-resistant, temperature resistant, and wear-resistant crystalline alloy of nickel, cobalt and boron. The alloy is epitaxially electrodeposited on an activated substrate using a pulsed square wave current. The epitaxial deposition occurs in an electrolytic bath containing nickel ions, cobalt ions, complexing agents, and an amino borane compound at a moderately low pH level and moderate temperature. An insoluble, solid catalyst, preferably palladium, causes the alloy to diffuse into the surface of the substrate and become bonded by a polar-covalent bond to it. Implements coated with the alloy, as well as plating solutions and methods for making the alloy are also disclosed.
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Teschke & Soares, "Electrodeposition of Nickel by Asymmetric Periodically Reversed Step Current," Feb. 1983, vol. 130, No. 2, pp. 306-310, J. Electrochem Soc. Electrochemical Science & Technology.
Diamond Technologies Company
Lund Valerie
Straub Gary P.
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