Direct observation of oxygen-induced structural changes in stainless-steel surfaces
- Direct observation of oxygen-induced structural changes in stainless-steel surfaces
- Cho, B; Chung, S; Kim, K; Kang, T; Park, C; Kim, B
- Date Issued
- AMER INST PHYSICS
- Oxidation of stainless was performed at 450 degrees C and oxygen partial pressures of 10(-9)-10(-4) Torr. Atomic force microscopy (AFM) images and surface-sensitive photoemission spectroscopy spectra clearly show that, at 450 degrees C, oxygen pressures lower than the critical pressure (p(c)(l)=similar to 1 x 10(-8) Torr) favor the formation of a smooth Cr2O3 oxide film whose AFM images clearly show a markedly smooth surface with no distinct grains. When oxidized at oxygen partial pressures higher than the critical pressure, the oxide film formed exhibits a rough surface with distinct grains that contain a significant amount of iron and manganese. (C) 2000 American Vacuum Society. [S0734-211X(00)02302-7].
- Article Type
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, vol. 18, no. 2, page. 868 - 872, 2000-03
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