Effect of dissolved hydrogen on electron transport in nickel–chromium alloys

Transport properties of some hydrogenated nickel-based alloys

“…Therefrom the partial thermopowers could be derived. This procedure also succeeded in the case of the Ni 0.95 Cr 0.05 H 0.9 hydride [5].…”

“…In a recent paper [5] the results of measurements of electrical resistance and thermoelectric power of Ni 0.95 Cr 0.05 H c have been presented. They support a model [6] according to which the negative temperature coefficient of resistance over a wide temperature range and the non-monotonic course of the thermoelectric power can be attributed to a Kondo-like effect, i.e.…”

“…In the recent papers [5,8,9], it was shown that the values of electrical resistance and thermoelectric power of some hydrogenated Pd alloys, measured as a function of temperature, often fulfill the modified Nordheim-Gorter rule, i.e. the S(T )/T quantity for a given alloy is a linear function of its electrical conductivity.…”

Influence of hydrogen on electron transport of palladium alloyed with silver

“…The palladium alloys (14,23 and 39 at.% Ag) have been saturated with hydrogen using a high-pressure equipment (see e.g., [6]). After 3-5 days long loading (room temperature, 0.9 GPa), the pressure chamber was cooled down to ca.…”

“…It can be measured directly or estimated by an extrapolation of the r(T) relationship (measured in the 80-300 K range) to 0 K. The partial thermopowers, a i , can be derived from the N-G plots: a ph = A, and a dis = A + B/r dis . This procedure has been recently used for analysis of experimental {S(T), r(T)} data obtained for hydrogenated palladium alloyed with transition and polyvalent elements [5,13], as well as for the hydrogenated nickel alloys (Ni-Cr [14], Ni-Cu [15]). …”