XPS investigation of the surfaces of amorphous (Ti90Ru10)87Si13
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A detailed study of the amorphous alloy (Ti90Ru10)87Si13 has been made using X-ray Diffraction, XRD, Differential Scanning Calorimetry, DSC, and X-ray Photoelectron Spectroscopy, XPS. The amorphous to crystalline transition occurred at 526°C. A study of the variation of the surface chemistry and the surface composition of the amorphous alloy has been made by XPS. It is shown that Argon sputtering cannot be used to reliably achieve the best reference state for quenched alloys that contain one or more electropositive components. This is a consequence of the preferential sputtering of the oxidized species. Mechanical cleaning in UHV conditions is suggested as an alternative means of achieving the reference state. The oxidation of the amorphous alloy has been studied from room temperature to 340°C. The theory of oxide film growth by Cabrera and Mott appears to provide a good qualitative explanation of the oxidation behavior exhibited by the alloy. © 1987.
author list (cited authors)
Cocke, D. L., Mencer, D. E., Naugle, D. G., & Tsai, C. L.