Surface Properties of Ti(N,C,O) Thin Coating Layers Deposited by PA-MOCVD for Bipolar Plates used PEMFC
- Surface Properties of Ti(N,C,O) Thin Coating Layers Deposited by PA-MOCVD for Bipolar Plates used PEMFC
- 권오집; 에릭플러리; 한승희
- thin films; vapor deposition; corrosion; electrical resistance; bipolar plate
- Issue Date
- Metals and Materials International
- VOL 17, NO 3, 457-462
- Ti(N,C,O) thin films were deposited by means of metal-organic chemical vapor deposition using a glow
discharge with the aim of enhancing the corrosion resistance and electrical contact conductivity of austenitic
stainless steel as a candidate materials for the bipolar plates used in polymer electrolyte membrane fuel cells.
The corrosion properties were found to be dependent on the composition, i.e., the precursor source, and on
the thickness of the thin films. Tetrakis(diethylamino) titanium used as a liquid metal organic source for
the deposition of thin Ti(N,C,O) layers onto austenitic stainless steel provided a significant improvement of
the corrosion resistance, which resulted in superior interfacial electrical conductivity after corrosion tests.
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