Modifications of subsurface alloy composition during high-temperature sputtering

Conference · Wed Jul 01 04:00:00 EDT 1981

OSTI ID:6436097

Lam, N Q; Wiedersich, H

Changes in the subsurface composition of concentrated binary alloys during high-temperature sputtering were studied using a kinetic model that includes Gibbsian adsorption, preferential sputtering, displacement mixing, radiation-enhanced diffusion, and radiation-induced segregation. Numerical solutions were obtained for Cu-Ni alloys under 5-keV Ar/sup +/ ion bombardment as functions of sputtering time and temperature. The effects of these various phenomena were examined in detail. The present calculations may be of importance in the areas of plasma contamination in fusion reactors, sputter depth-profiling, and elevated-temperature ion implantation.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6436097
• Report Number(s): CONF-810831-102; ON: DE83007834
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ABSORPTION
ALLOYS
ARGON IONS
CHARGED PARTICLES
COPPER ALLOYS
IONS
IRRADIATION
MATHEMATICAL MODELS
NICKEL ALLOYS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SPUTTERING