ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The changes in electrical resistivity of palladium solid solution alloys (alloying element = silver, gold, copper, yttrium, cerium, titanium, zirconium, vanadium, niobium and tantalum) with hydrogen concentration were measured at 301 K up to aboutr(H/M) = 1.5×10−2; the hydrogen was introduced by electrolysis and measurements of electrode potential were also made. The specific electrical resistivity increment per unit change of hydrogen concentration, ∂Δϱ1∂r, generally increases with increase of the solute contents, although for silver, gold and copper there are no notable changes in the slopes with their concentrations. The increase in ∂Δ/g9/∂r with the alloying contents cannot be related to the lattice “dilatation” effect due to the solute, but it is associated approximately with a decrease in the density-of-states at the Fermi level caused by pre-filling of the 4 d band of palladium by the solute atoms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00582459
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