Membrane Surface Morphology before and after the Reversible Hydrogen Doping of Diffusion Filters

Abstract:

Atomic force microscopy (АFМ) and high-precision scanning electron microscopy methods were used to study the surface of diffusion filter-membranes of alloy Pd₉₃Y₇. The formation of alterations in structure in one of membranes was established as a result from the homogenizing annealing at 900°C for 1 hours. It was found that the reversible doping of the membrane alloy with hydrogen caused the dispersion of the diffusion filter-membranes’ surface structure. Differences in changes by the surface structure are determined during the hydrogenation in directional and non-directional flow of hydrogen.

• Periodical: Materials Science Forum (Volume 1037)
• Pages: 626-631
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1037.626
• Online since: July 2021
• Authors: Olga V. Akimova*, Irina S. Tereshina, Tatiana Kaminskaya, Igor A. Karateev
• Keywords: Atom Force Microscopy, Hydrogen, Membrane Diffusion Filters, Palladium, Surface Morphology

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