Nanocrystalline metals and process of producing the same

Details Nanocrystalline metals and process of producing the same Nanocrystalline metals and process of producing the same

1992-11-30

1994-10-04

Gorgos, Kathryn

Specialized metallurgical processes, compositions for use therei

Compositions

75710, 75954, 205 50, 205104, 205105, 205271, 205272, 205274, C25D 312

Patent

active

053522664

ABSTRACT:
A process for producing nanocrystalline materials, and in particular nanocrystalline nickel having an average grain size of less than about 11 nanometers is described. The nanocrystalline material is electrodeposited onto the cathode in an aqueous acidic electrolytic cell by application of a pulsed D.C. current. The cell electrolyte also contains a stress reliever, such as saccharin, which helps to control the grain size. The novel product of the invention find utility as wear resistant coatings, hydrogen storage materials, magnetic materials and as catalysts for hydrogen evolution.

REFERENCES:
patent: 4461680 (1984-07-01), Lashmore
Gong et al., J. Appl. Phys. 69, 5119-5121; 1991.

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