AVS 51st International Symposium
    Applied Surface Science Monday Sessions
       Session AS-MoP

Paper AS-MoP11
Study of the Oxidation Behavior of Aluminum and Aluminum Alloys Using X-Ray Photoelectron Spectroscopy

Monday, November 15, 2004, 5:00 pm, Room Exhibit Hall B

Session: Poster Session
Presenter: P.M.A. Sherwood, Kansas State University
Authors: G.D. Claycomb, Kansas State University
P.M.A. Sherwood, Kansas State University
Correspondent: Click to Email
The oxidation behavior of high purity aluminum and two aluminum alloys, after exposure to a variety of aqueous environments, has been studied by using core and valence band X-ray Photoelectron Spectroscopy. Freshly abraded samples were exposed to de-oxygenated, normal and oxygenated quadruply distilled water for one hour at room temperature, 40º, 70º and 100ºC. For pure aluminum, single oxidized aluminum compounds were formed in some instances while mixtures were formed in other cases. For the alloys, the oxidized aluminum compounds were mixed with oxides of the alloying elements in some instances and in other cases where the films had thickened sufficiently, single oxidized aluminum compounds were found on the outermost surface. Identification of the types of oxides being formed was achieved by using valence band photoelectron spectrum. The spectra were analyzed by using a comparison with the valence band spectra of known oxidized aluminum compounds and spectra generated by additions of the spectra from the known oxidized aluminum compounds together with approaches that used difference spectra. This work is based upon work supported by Luxfer Gas Cylinders.