Sodium-sulfur cell component protected by a high chromium alloy

Details Sodium-sulfur cell component protected by a high chromium alloy Sodium-sulfur cell component protected by a high chromium alloy

1978-03-22

1980-11-04

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

Active material in molten state

427237, 428667, H01M 1039, B32B 1518, B05D 722

Patent

active

042320984

ABSTRACT:
A corrosion resistant contiguous duplex chromium-carbon-iron alloy layer bonded to a steel and other similar ferrocarbon substrate for use as a cell casing for a sodium-sulfur cell. The outer layer includes in excess of 60 weight % chromium. The duplex layer is formed by pack chromizing in a pack of chromium and ammonium halide at elevated temperatures in hydrogen or inert gas atmosphere.

REFERENCES:
patent: 3589927 (1971-06-01), Holker et al.
patent: 3959013 (1976-05-01), Briter
patent: 4037027 (1977-07-01), Desplanches et al.
patent: 4148936 (1979-04-01), Grisik et al.
A. H. Sulley, Chromium, Butterworth Scientific Publication, London, 1975, pp. 197-222.
Samuel, R. L. and Lockington, N. A., Metal Treatment 18(1951), pp. 440-444 and 495-506.

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