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  5. Information and analytical system for the diffusion research in metals and alloys

Information and analytical system for the diffusion research in metals and alloys

О.S. Posukhov, V.E. Semenenko, L.S. Soroka, М.G. Styervoyedov
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The paper presents the results of the information - analytical system for experimental studies of diffusion in metals and alloys. The main difference between the developed system is the ability of the diffusion parameters measurement (pre-exponential factor and activation energy) during one exposure. A temperature gradient for measurement implementation is applied to a rectangular specimen with a variable thickness. As a result, the diffusion annealing creates a surface with variable concentrations of the diffusing material, which depends on local temperature and sample thickness. Concentration distribution of diffusant at the surface is measured by XPS with secondary electrons energy selective analyzer. The results of calibration measurements of the nickel and gold in a copper matrix diffusion using the proposed method up to a measurement error coincided with the reference data are available.
Keywords: information and control system, the diffusion parameters, x-ray photoelectron spectrometer, the concentration distribution of diffusant