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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 101 to 102 of 102 (0.082 seconds)| 101 |
Investigation of carbon-based coatings on austenitic stainless steel for bipolar plates in proton exchange membrane fuel cells, produced by cathodic arc depositionSteinhorst, Maximilian, Giorgio, Maurizio, Topalski, Slavcho, Roch, Teja 25 November 2019 (has links)
Stainless steel bipolar plates are a possible replacement for graphite and composite bipolar plates in fuel cells. However, due to a native oxide layer they exhibit a high interfacial contact resistance (ICR) which lowers the performance. Conductive coatings like gold are a possible solution because they can reduce the contact resistance of metallic bipolar plates. We investigate the pulsed cathodic arc technique for deposition of carbon-based thin films on austenitic stainless steel 316L as cost-efficient alternative. Different types of coatings were prepared by varying the layer structure and processing parameters. Potentiodynamic polarization tests and ICR measurements were conducted to evaluate the performance of the films as conductive and corrosion resistant coatings. It was found that the corrosion resistance of coated austenitic steel samples is improved by both coatings and that measured ICR-values are well below the DOE 2020 target of 10 mΩ/cm2.
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The Effect of Salt Concentration on Aqueous Strong Acid, Carbon Dioxide, andHydrogen Sulfide Corrosion of Carbon SteelMadani Sani, Fazlollah January 2021 (has links)
No description available.
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