Please use this identifier to cite or link to this item:
|Title:||XPS investigation of the oxidation/corrosion of melt-spun Mg||Authors:||Yao, H.B.
|Issue Date:||1-May-2000||Citation:||Yao, H.B., Li, Y., Wee, A.T.S. (2000-05-01). XPS investigation of the oxidation/corrosion of melt-spun Mg. Applied Surface Science 158 (1) : 112-119. ScholarBank@NUS Repository. https://doi.org/10.1016/S0169-4332(99)00593-0||Abstract:||The oxide films formed on the surfaces of melt-spun Mg exposed to air, immersed in distilled water or 3% NaCl solution saturated with Mg(OH)2 have been investigated by X-ray photoelectron spectroscopy (XPS). High resolution XPS spectra revealed two distinct oxygen species on the surface films: one assigned to O2- in MgO, the other to OH- in Mg(OH)2. Depth profiling revealed that the two species had different depth distributions in the films. The oxide film formed in air comprised a contamination outer layer and a relatively thick (5-6 nm) predominantly MgO inner layer. The film formed in distilled water or 3% NaCl solution saturated with Mg(OH)2 was mainly a mixture of Mg(OH)2 and MgO. Mg(OH)2 was predominant at the top layer and decreased gradually with depth while MgO exhibited the opposite behavior. The corrosion product formed in 3% NaCl solution was more hydrated and much thicker that the films formed in the other two conditions. Cl- ion was incorporated in the oxide film formed in 3% NaCl solution. There exists both partial and complete dissociation of adsorbed water when melt-spun pure Mg ribbons are immersed in distilled water or 3% NaCl solution saturated with Mg(OH)2.||Source Title:||Applied Surface Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/98598||ISSN:||01694332||DOI:||10.1016/S0169-4332(99)00593-0|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 26, 2022
WEB OF SCIENCETM
checked on Jan 19, 2022
checked on Jan 27, 2022
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.