Formation of Finely Divided Silver-Tin Powders by Electrodeposition
- 1 January 1981
- journal article
- research article
- Published by Taylor & Francis in Transactions of the IMF
- Vol. 59 (1) , 68-72
- https://doi.org/10.1080/00202967.1981.11870565
Abstract
Finely-divided silver-tin powders were electrodeposited at a rotating cylinder cathode from an aqueous sodium stannate-silver cyanide bath. It is shown that the full compositional range Ag 100% to Sn 100% can be prepared by variation in bath content. Current-potential and powder composition versus bath composition relationships are shown. X-ray analysis shows the deposit to contain both a mixture of the parent metals and the intermetallic. Annealing increases the proportion of the intermetallic. Scanning electron microscopy shows the deposit to be an aggregate of finely divided dendritic crystals.Keywords
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