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The Formation of Ox...
The Formation of Oxide Scale on FeCrAl at 900°C in dry O2 and O2 + 40% H2O
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- Josefsson, Helena, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Liu, Fang, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Jan-Erik, 1965 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- Halvarsson, Mats, 1965 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johansson, Lars-Gunnar, 1952 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa färre...
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(creator_code:org_t)
- 2005
- 2005
- Engelska.
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Ingår i: 206th ECS Meeting; Honolulu, HI; United States; 3 October 2004 through 8 October 2004. ; PV 2004-16, s. 56-66
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- Polished Kanthal AF samples were oxidized isothermally at 900°C in O2 and in O2+40% H2O for between 1 and 168 hours. The samples were analysed gravimetrically, by Grazing-Incidence X-ray diffraction, Scanning Electron Microscopy, Energy Dispersive X-ray analysis and Auger Electron Spectroscopy profiling. Much of the surface is covered by a thin and smooth base oxide with Mg-rich nodules on top. In addition, patches of thick uneven oxide and RE-oxide protrusions are present on the surface. Exposure to O2+40% H2O results in significantly higher initial oxidation rate than dry O2. The presence of water vapour also influences oxide morphology. The thick oxide patches exhibit needle-like crystals in dry O2 while rounded oxide agglomerates dominate in O2/H2O. The chemical composition of the oxide was the same in O2 and in O2+40% H2O. α-Al 2O3, γ-Al2O3 and MgAl 2O4 form in both environments.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)