Author : John Ferrante
Release : 1973
Genre : Auger effect
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Auger Electron Spectroscopy Study of Surface Segregation in the Binary Alloys Copper - 1 Atomic Percent Indium, Copper - 2 Atomic Percent Tin, and Iron - 6.55 Atomic Percent Silicon by : John Ferrante

Download or read book Auger Electron Spectroscopy Study of Surface Segregation in the Binary Alloys Copper - 1 Atomic Percent Indium, Copper - 2 Atomic Percent Tin, and Iron - 6.55 Atomic Percent Silicon written by John Ferrante. This book was released on 1973. Available in PDF, EPUB and Kindle. Book excerpt: Auger electron spectroscopy was used to examine surface segregation in the binary alloys copper-1 at. % indium, copper-2 at. % tin and iron-6.55 at. % silicon. The copper-tin and copper-indium alloys were single crystals oriented with the /111/ direction normal to the surface. An iron-6.5 at. % silicon alloy was studied (a single crystal oriented in the /100/ direction for study of a (100) surface). It was found that surface segregation occurred following sputtering in all cases. Only the iron-silicon single crystal alloy exhibited equilibrium segregation (i.e., reversibility of surface concentration with temperature) for which at present we have no explanation. McLean's analysis for equilibrium segregation at grain boundaries did not apply to the present results, despite the successful application to dilute copper-aluminum alloys. The relation of solute atomic size and solubility to surface segregation is discussed. Estimates of the depth of segregation in the copper-tin alloy indicate that it is of the order of a monolayer surface film.