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Hydrogen and deuterium in Pd-25 pct Ag alloy: Permeation, diffusion, solubilization, and surface reaction

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Abstract

In this work, the hydrogen and deuterium transport parameters such as permeability, diffusivity, and solubility in a Pd-25 pct Ag alloy are studied, using a permeation gas phase technique and, additionally, a computer-controlled microbalance system. In the region in which Sieverts' law is valid, the hydrogen solubilities found using both techniques are in very good agreement. From permeation measurements, the surface constants for the adsorption (σk 1) and release (σk 2) of hydrogen and deuterium in Pd-25 pct Ag alloy are also determined. The measurements cover the temperature range from 323 to 773 K and a pressure range from 1 to 105 Pa.

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Authors and Affiliations

  1. ENEA CR Brasimone, 40032 Camugnano, Bologna, Italy

    E. Serra Ph.D. (Scientific Collaborator)

  2. Joule Laboratory, Department of Physics, University of Salford, M5 4WT, Salford, UK

    M. Kemali (Assistant Professor)

  3. Science Research Institute, University of Salford, M5 4WT, Salford, UK

    D. K. Ross (Director)

  4. Institute of Advanced Materials, JRC-Ispra Site, Institute of Advanced Materials, I-21020, Ispra, (Va), Italy

    A. Perujo (Head of Research Group)

Authors
  1. E. Serra Ph.D.
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  2. M. Kemali
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  3. A. Perujo
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  4. D. K. Ross
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Additional information

E. SERRA, formerly Doctoral Fellowship with the European Commission, JRC-Ispra Site, Institute of Advanced Materials.

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Serra, E., Kemali, M., Perujo, A. et al. Hydrogen and deuterium in Pd-25 pct Ag alloy: Permeation, diffusion, solubilization, and surface reaction. Metall Mater Trans A 29, 1023–1028 (1998). https://doi.org/10.1007/s11661-998-1011-3

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  • DOI: https://doi.org/10.1007/s11661-998-1011-3

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