A LEED-AES study of the oxidation of cr(110) and Cr(100)
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The effect of surface texture on the oxidation behaviour of polycrystalline Fe-Cr
2018, Applied Surface ScienceCitation Excerpt :The formation of these oxides depends critically on the conditions such as oxygen pressure and temperature. Studies involving the particular oxide growth along the three main directions, i.e. 〈1 0 0〉, 〈1 1 0〉, 〈1 1 1〉, focus on e.g. iron [23,24], chromium [25–28] or Fe-Cr [29,30] single crystals, often under well-controlled laboratory conditions with precise amounts of oxygen at low pressure. The phase transformation between Fe2O3 and Fe3O4 has also been considered on deposited nano-layers [31,32].
The surface energy and stress of metals
2018, Surface SciencePolarization behavior of active passive metals and alloys
2018, Encyclopedia of Interfacial Chemistry: Surface Science and ElectrochemistryOxygen accumulation on metal surfaces investigated by XPS, AES and LEIS, an issue for sputter depth profiling under UHV conditions
2017, Applied Surface ScienceCitation Excerpt :The obtained data indicate that most of the oxygen is simply adsorbed. Further detailed information on the initial stages of oxidation of Cr, proposed as models, can be found in [10,13,16–18]. In contrast to the above studied metals, the spectra obtained from a Zn surface revealed no remarkable oxygen uptake, as shown in the relative concentration plot in Fig. 3d).
Reactive metal-oxide interfaces: A microscopic view
2016, Surface Science ReportsCitation Excerpt :At low r/p values, the overexposure to oxygen causes an excessive substrate oxidation, resulting in a poorly ordered MgO film, while high r/p values induce the development of under-stoichiometric MgO films (see Fig. 10). Epitaxial Cr2O3 films have been stabilized on the Cr(011) surface [173–178]. Oxygen exposure in UHV conditions performed with the substrate held at relatively high temperatures (603 K) induces the layer-by-layer growth of Cr2O3, without any interface roughening [174].
Oxidation effects on ultrathin Ni and Cr films grown on Fe(001): A combined scanning tunneling microscopy and Auger electron spectroscopy study
2014, Surface ScienceCitation Excerpt :We cannot exclude that, as a consequence of the post-annealing treatments at 200 °C an alloyed Ni–Fe phase is formed in proximity of the interface underneath the oxidized layer. Before presenting our results on the oxidation of Cr ultra-thin films deposited on Fe it is useful to summarize the results obtained by Ekelund et al. in the oxidation of (110) and (100) chromium surfaces [42]. According to their investigations, two different spectroscopic features in the low energy Auger spectra are associated to Cr oxidation.