Oxidation-induced stoichiometric and morphological change of oxide films on stainless-steel surfaces
SCIE
SCOPUS
- Title
- Oxidation-induced stoichiometric and morphological change of oxide films on stainless-steel surfaces
- Authors
- Cho, B; Choi, E; Chung, S
- Date Issued
- 1999-12
- Publisher
- SPRINGER VERLAG
- Abstract
- The oxidation-induced stoichiometric and morphological changes of the oxide film on a stainless-steel surface are observed by X-ray photoelectron spectroscopy and atomic force microscopy for annealing temperatures in the range 400-500 degrees C in oxygen partial pressures of 10(-9) to 10(-4) Torr With increasing the temperature, a significant shift occurs in the Cr 2p(3/2) binding energy towards higher energies, indicating a change in the oxidation state of chromium. It is found that at 450 degrees C lower oxygen partial pressures favor the formation of a smooth, pure chromium oxide. At a low oxygen pressure the oxide formed mainly consists of chromium oxide that shows a markedly smooth surface with no distinct grains, whereas at a high pressure the oxide formed mainly consists of iron oxide with distinct grains.
- Keywords
- EXTREME HIGH-VACUUM; FE-CR ALLOYS; PHOTOELECTRON-SPECTROSCOPY; OUTGASSING REDUCTION; AIR; ADSORPTION; PERMEATION; DEUTERIUM; SYSTEM; LAYER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20192
- DOI
- 10.1007/s003390051043
- ISSN
- 0947-8396
- Article Type
- Article
- Citation
- APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol. 69, no. 6, page. 625 - 630, 1999-12
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