Corrosion resistant metallic bipolar plate

Details Corrosion resistant metallic bipolar plate Corrosion resistant metallic bipolar plate

2007-05-01

2007-05-01

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

10403472

ABSTRACT:
A corrosion resistant, electrically conductive component such as a bipolar plate for a PEM fuel cell includes 20–55% Cr, balance base metal such as Ni, Fe, or Co, the component having thereon a substantially external, continuous layer of chromium nitride.

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G. Bertrand et al, “A Study of the Corrosion Behaviour and Protective Quality of Sputtered Chromium Nitride Coatings,” Surface and Coatings Technology 126 (2000) 199-209, Elsevier.
Masami Taguchi et al, “Effect of Surface Nitriding on Corrosion Resistance of Chromium in Sulfuric Acid Solution,” Materials Transactions, KIM, vol. 32, #12 (1991), pp. 1170-1176.
A. A. Kodentsov et al, “High-Temperature Nitridation of Ni-Cr Alloys,” Metallurgical & Materials Transactions A, vol. 27A, (Jan. 1996) pp. 59-69.

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