Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates

M. P. Brady; K. Weisbrod; I. Paulauskas; R. A. Buchanan; K. L. More; H. Wang; M. Wilson; F. Garzon; L. R. Walker

doi:10.1016/j.scriptamat.2003.12.028

Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates

M. P. Brady, K. Weisbrod, I. Paulauskas, R. A. Buchanan, K. L. More, H. Wang, M. Wilson, F. Garzon, L. R. Walker

Center for Nanophase Matls Sciences

Research output: Contribution to journal › Article › peer-review

203 Scopus citations

Abstract

Preferential thermal nitridation was used to form a pin-hole defect free CrN/Cr₂N surface on a model Ni-Cr alloy. Excellent corrosion resistance and negligible contact resistance increase was observed over a 4100 h exposure in 80 °C sulfuric acid and when used as a metallic bipolar plate in a 1000 h proton exchange membrane (PEM) fuel cell test.

Original language	English
Pages (from-to)	1017-1022
Number of pages	6
Journal	Scripta Materialia
Volume	50
Issue number	7
DOIs	https://doi.org/10.1016/j.scriptamat.2003.12.028
State	Published - Apr 2004

Funding

The authors thank P.F. Tortorelli, D.F. Wilson, and I.G. Wright for helpful comments in reviewing this manuscript. Funding from the United States Department of Energy (US DOE) Hydrogen, Fuel Cells, and Infrastructure program is gratefully acknowledged. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the US DOE under contract DE-AC05-00OR22725.

Keywords

Coating
Corrosion
Electrical properties
Electrochemistry
Nitrides

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10.1016/j.scriptamat.2003.12.028

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title = "Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates",

abstract = "Preferential thermal nitridation was used to form a pin-hole defect free CrN/Cr2N surface on a model Ni-Cr alloy. Excellent corrosion resistance and negligible contact resistance increase was observed over a 4100 h exposure in 80 °C sulfuric acid and when used as a metallic bipolar plate in a 1000 h proton exchange membrane (PEM) fuel cell test.",

keywords = "Coating, Corrosion, Electrical properties, Electrochemistry, Nitrides",

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T1 - Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates

AU - Brady, M. P.

AU - Weisbrod, K.

AU - Paulauskas, I.

AU - Buchanan, R. A.

AU - More, K. L.

AU - Wang, H.

AU - Wilson, M.

AU - Garzon, F.

AU - Walker, L. R.

PY - 2004/4

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N2 - Preferential thermal nitridation was used to form a pin-hole defect free CrN/Cr2N surface on a model Ni-Cr alloy. Excellent corrosion resistance and negligible contact resistance increase was observed over a 4100 h exposure in 80 °C sulfuric acid and when used as a metallic bipolar plate in a 1000 h proton exchange membrane (PEM) fuel cell test.

AB - Preferential thermal nitridation was used to form a pin-hole defect free CrN/Cr2N surface on a model Ni-Cr alloy. Excellent corrosion resistance and negligible contact resistance increase was observed over a 4100 h exposure in 80 °C sulfuric acid and when used as a metallic bipolar plate in a 1000 h proton exchange membrane (PEM) fuel cell test.

KW - Coating

KW - Corrosion

KW - Electrical properties

KW - Electrochemistry

KW - Nitrides

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U2 - 10.1016/j.scriptamat.2003.12.028

DO - 10.1016/j.scriptamat.2003.12.028

M3 - Article

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VL - 50

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JF - Scripta Materialia

IS - 7

ER -

Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates

Abstract

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