Atomic Structure of the Passive Oxide Film Formed on Iron
We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size ({approx}50 {Angstrom}) and is oriented with the substrate. The film structure is based on Fe{sub 3}O{sub 4}, bu...
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| Veröffentlicht in: | Physical Review Letters 1997-11, Vol.79 (21), p.4282-4285 |
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| container_title | Physical Review Letters |
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| creator | Toney, Michael Davenport, Alison Oblonsky, Lucy Ryan, Mary Vitus, Carissima |
| description | We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size ({approx}50 {Angstrom}) and is oriented with the substrate. The film structure is based on Fe{sub 3}O{sub 4}, but with cation vacancies on octahedral and tetrahedral sites (80{percent} and 66{percent} occupancies, respectively) and with cations occupying octahedral interstitial sites (12{percent} occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance. {copyright} {ital 1997 } {ital The American Physical Society} |
| doi_str_mv | 10.1103/PhysRevLett.79.4282 |
| format | Article |
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(BNL), Upton, NY (United States)</creatorcontrib><title>Atomic Structure of the Passive Oxide Film Formed on Iron</title><title>Physical Review Letters</title><description>We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size ({approx}50 {Angstrom}) and is oriented with the substrate. The film structure is based on Fe{sub 3}O{sub 4}, but with cation vacancies on octahedral and tetrahedral sites (80{percent} and 66{percent} occupancies, respectively) and with cations occupying octahedral interstitial sites (12{percent} occupancy). 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The crystalline film has a small crystallite size ({approx}50 {Angstrom}) and is oriented with the substrate. The film structure is based on Fe{sub 3}O{sub 4}, but with cation vacancies on octahedral and tetrahedral sites (80{percent} and 66{percent} occupancies, respectively) and with cations occupying octahedral interstitial sites (12{percent} occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance. {copyright} {ital 1997 } {ital The American Physical Society}</abstract><cop>United States</cop><doi>10.1103/PhysRevLett.79.4282</doi><tpages>4</tpages></addata></record> |
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| ispartof | Physical Review Letters, 1997-11, Vol.79 (21), p.4282-4285 |
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| source | American Physical Society Journals |
| subjects | CORROSION RESISTANCE GRAIN SIZE INELASTIC SCATTERING IRON MATERIALS SCIENCE OXIDATION PHYSICS STRUCTURAL CHEMICAL ANALYSIS SYNCHROTRON RADIATION THIN FILMS VACANCIES X-RAY DIFFRACTION |
| title | Atomic Structure of the Passive Oxide Film Formed on Iron |
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