Abstract
The electrodeposition and structure of Re-Pd alloy coatings is studied. The palladium content in the alloy is shown to be virtually proportional to its concentration in the electrolyte (at the constant concentration of rhenium-containing ions) and under the conditions studied reaches 29.3 at %. For the Pd content less than 7.6 at % only undistorted lines corresponding to nanocrystalline rhenium phase are revealed in X-ray diffraction patterns, whereas palladium lines are observed only at its content of 12 at % and higher. At Pd content of 16.9 at % and higher the Pd deposit contains both nanocrystalline and coarsely crystalline rhenium in addition to palladium and probably a small amount of an intermetallic phase with the Pd0.88Re0.12 composition. The structural changes observed with the increase in the palladium content are associated with redistribution of deposit-absorbed hydrogen between the phases.
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Original Russian Text © Yu.D. Gamburg, A.B. Drovosekov, T.P. Puryaeva, 2015, published in Elektrokhimiya, 2015, Vol. 51, No. 4, pp. 432–436.
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Gamburg, Y.D., Drovosekov, A.B. & Puryaeva, T.P. Electrodeposition of rhenium-palladium alloy coatings and their structure. Russ J Electrochem 51, 376–379 (2015). https://doi.org/10.1134/S1023193515040035
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DOI: https://doi.org/10.1134/S1023193515040035