Abstract
Electro-motive force (EMF) arising in isothermal conditions between two disconnected ends of a zirconium hydride current conductor having a gradient of hydrogen concentration has been investigated at temperatures ranging from 20 to 100°C in the thermostat. The values of the EMF are in the range of 1 to 200 μV. The corresponding activation energy is equal to 23 kJ/moleH2 at temperatures below 70°C and to 52 kJ/moleH2 at temperatures above 70°C. The activation energy value at high temperatures is close to the activation energy of hydrogen diffusion in zirconium hydrides. It was concluded, that the measured EMF is the diffusion EMF (DEMF). This conclusion was proved by studying DEMF under the influence of gamma-radiation.
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Abbreviations
- EMF:
-
Electro-motive force
- TEMF:
-
Thermal electro-motive force
- DEMF:
-
Diffusion electro-motive force
- T:
-
Temperature, K
- R:
-
Gas constant
- D:
-
Hydrogen diffusion coefficient
- ρ:
-
Specific electrical resistance
- e:
-
Electron charge
- Z*e:
-
Effective charge of hydrogen atom
- Nhyd :
-
Concentration of hydrogen atoms in a metal
References
«Metal Hydrides», W.N. Mueller, J.P. Bleackleadge, and G.G. Leibovitz, Eds., Academic Press, New York, 1968.
Primakov N.G., Rudenko V.A., Kazarnikov V.V. and Bespalov A.G., “Nonuniform swelling and hydrogen redistribution in zirconium hydride under neutron irradiation”, Int. J. of Hydrogen energy, 24 (1999), 805.
Smirnov V.I. and Dunin-Barkovsky I.V., «A brief course of mathematical statistics for technical applications», Moscow, Fizmatgiz, 1959.
Wipf H., Electro-and thermotransport in metal-hydrogen systems in book “Hydrogen in Metals”, part II, edited by G. Alefeld and J. Völkl, N.Y., 1978
Primakov N.G., Rudenko V.A., and Kazarnikov V.V., «On the determination of irradiation-induced permeation of hydrogen through metals by the method of massspecrtometry», Journal of Nuclear Materials 233-237 (1996) 1133–1136.
Paetz P., Lücke K., Über die kinetik der wasserstoff-aufnahme von δ-zirkonhydrid, Z. Für Metallkunde, Bd. 62, H. 9, 1971, s. 657.
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Primakov, N.G., Galkin, S.L., Rudenko, V.A., Kazarnikov, V.V., Konobeev, Y.V. (2002). Huge Diffusion Electromotive Force in Zirconium Hydrides. In: Hampton, M.D., Schur, D.V., Zaginaichenko, S.Y., Trefilov, V.I. (eds) Hydrogen Materials Science and Chemistry of Metal Hydrides. NATO Science Series, vol 71. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0558-6_7
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DOI: https://doi.org/10.1007/978-94-010-0558-6_7
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