Author: Frank Lynn WilliamsPublisher:
ISBN:
Category :
Languages : en
Pages : 239
Book Description
The Surface Composition of Binary Alloys
Author: Frank Lynn WilliamsDetermination of the Surface Composition of Binary Alloys by Auger Electron Spectroscopy
Author: Steven Henry OverburyPublisher:
ISBN:
Category :
Languages : en
Pages : 462
Book Description
Determination of the Surface Composition of Binary Alloys by Auger Electron Spectroscopy
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Auger electron spectroscopy was exploited as a means of determining the surface phase diagram of Au--Ag and Au--Sn alloys. Polycrystalline Au--Ag alloy foils of a wide range of composition (atom fractions of 0.15 to 0.97) were cleaned. The intensities of the Auger emission from transitions at several energies were measured and normalized to those of pure Au and Ag. The surface monolayer compositions of the alloys were determined. The Auger data was consistent with enrichment of Ag in the surface monolayer. Ingots of Au--Sn with bulk composition between 50 and 99 at % Au were prepared. The bulk structure and composition of these complex alloys were characterized by electron microprobe, x-ray diffraction, x-ray fluorescence and optical microscopy. The samples were cleaned and equilibrated in ultra high vacuum and the intensities of the Auger emission from transitions at several energies were measured and normalized to those of pure Au and pure Sn. Using the intensity model, the normalized Auger intensity ratios were used to determine the surface monolayer composition. Enrichment of Sn was found in the surface monolayer for disordered zeta and .cap alpha. phase alloys. The highly ordered delta (50.0 at % Au) phase alloy was found to exhibit no surface segregation. The surfaces of two phase alloys (delta and zeta) were found to be describable by the lever rule. The results were interpreted in terms of the bulk structures, ordering properties, and driving force for segregation of the alloys. The effects of ion sputtering upon the surface of Au--Ag and Au--Sn alloys were also investigated.
Ion Bombardment-induced Changes in the Surface Composition of Binary Alloys
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Redistribution of alloy components during heavy-ion bombardment was investigated using a kinetic model that includes the effects of radiation-induced segregation and preferential sputtering. Theoretical predictions are qualitatively compared with recent experimental measurements.
Surface Segregation in Multicomponent Systems: Modeling of Surface Alloys and Alloy Surfaces
Author: Handbook of Surfaces and Interfaces of Materials, Five-Volume Set
Author: Hari Singh NalwaPublisher: Elsevier
ISBN: 0080533825
Category : Technology & Engineering
Languages : en
Pages : 1915
Book Description
This handbook brings together, under a single cover, all aspects of the chemistry, physics, and engineering of surfaces and interfaces of materials currently studied in academic and industrial research. It covers different experimental and theoretical aspects of surfaces and interfaces, their physical properties, and spectroscopic techniques that have been applied to a wide class of inorganic, organic, polymer, and biological materials. The diversified technological areas of surface science reflect the explosion of scientific information on surfaces and interfaces of materials and their spectroscopic characterization. The large volume of experimental data on chemistry, physics, and engineering aspects of materials surfaces and interfaces remains scattered in so many different periodicals, therefore this handbook compilation is needed.The information presented in this multivolume reference draws on two decades of pioneering research on the surfaces and interfaces of materials to offer a complete perspective on the topic. These five volumes-Surface and Interface Phenomena; Surface Characterization and Properties; Nanostructures, Micelles, and Colloids; Thin Films and Layers; Biointerfaces and Applications-provide multidisciplinary review chapters and summarize the current status of the field covering important scientific and technological developments made over past decades in surfaces and interfaces of materials and spectroscopic techniques with contributions from internationally recognized experts from all over the world. Fully cross-referenced, this book has clear, precise, and wide appeal as an essential reference source long due for the scientific community. The complete reference on the topic of surfaces and interfaces of materialsThe information presented in this multivolume reference draws on two decades of pioneering researchProvides multidisciplinary review chapters and summarizes the current status of the fieldCovers important scientific and technological developments made over past decades in surfaces and interfaces of materials and spectroscopic techniquesContributions from internationally recognized experts from all over the world
Surface Composition of alloys
Author: M. J. KelleySurface Chemistry of Metals and Alloys
Author: Albert D. van LangeveldPublisher:
ISBN:
Category :
Languages : en
Pages : 200
Book Description
Low Energy Electrons and Surface Chemistry
Author: Gerhard ErtlPublisher:
ISBN:
Category : Science
Languages : en
Pages : 396
Book Description
Electron Spectroscopy Studies of Surface Segregation in Selected Binary Alloys and Surface Composition of Oxidized Copper Solar Absorbers
Author: Sven Erik HörnströmPublisher:
ISBN: 9789178700578
Category :
Languages : en
Pages : 39
Book Description