Download | - View accepted manuscript: In situ studies of passive film chemistry using X-ray absorption spectroscopy (PDF, 848 KiB)
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Author | Search for: Davenport, Alison J.; Search for: Isaacs, Hugh S.; Search for: Bardwell, Jennifer A.1; Search for: MacDougall, Barry2; Search for: Frankel, Gerald S.; Search for: Schrott, Alex G. |
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Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
- National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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Format | Text, Article |
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Abstract | The application of X-ray absorption spectroscopy to the study of passivation of thin metal films is discussed. Data are presented which demonstrate the effectiveness of the technique for monitoring both potential- and time-dependent data on valency and selective dissolution from passive films. It is shown that iron undergoes reductive dissolution from the passive oxide film on both pure iron and Fe-26Cr, in the latter case leading to enrichment of chromium in the passive film. Transpassive dissolution of chromium can take place on Al-Cr and Fe-Cr only after it has been enriched in the passive film by dissolution of the other alloying element. Rapid polarization of Al-Cr leads to trapping of electroactive chromium in the passive film. |
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Publication date | 1993 |
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In | |
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Language | English |
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Peer reviewed | Yes |
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NRC number | NRCC 52300 |
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NPARC number | 16330174 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | 7427ab3e-c59f-40b3-b394-32890cb2bd2b |
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Record created | 2010-11-08 |
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Record modified | 2020-04-24 |
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