Diffusion Coefficients of Deuterium in Paladium Deuteride during Ab- and Desorption in High Pressures of Gaseous Deuteruim at 298 K

• Autorzy: Baranowski B. , Filipek S. M.
• Języki publikacji: EN

Abstrakty

EN

Exerting pressure jumps of several kbar in gaseous deuterium in the range of 5-28 kbar, surrounding a palladium deuteride wire, the diffusion coefficients of deuterium in the solid phase were evaluated by following the time course of the electrical resistance. Absorption of deuterium is characterized by a smaller diffusion coefficient than its desorption. Both represent a decreasing function with the inrease of deuterium pressure. The difference of the ab- and desorption kinetics is explained by the influence of the elastic energy on the energetics of the occupation of metallic interstitials by deuterium particles. Comparisons with previous measurements are given.

Słowa kluczowe

EN

diffusion; deuterides; high pressure; mechanical stresses; relaxation; volume of activation

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2001
• Tom: Vol. 75, nr 7
• Strony: 1051--1058
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Baranowski B.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland

autor

Filipek S. M.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland

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