Abstract
The conditions for electrodeposition of Fe-Sn alloys from a novel, environmentally friendly, ferrous chloride-based electrolyte were studied. The influence of the pH on the electrolyte stability and deposit stoichiometry was studied and discussed. Anodic stripping voltammetry (ASV), XRD and SEM/EDX were used to characterise the electrodeposited phases. The results from ASVs indicated the possibility to deposit at least two different phases at high overpotentials. Hull cell depositions in an electrolyte with a Sn to Fe ratio 1:1 and a pH value of 2.8 showed regular deposition of Fe-Sn. Fe-rich deposits (54.84 at.-%) were obtained from an electrolyte with Sn to Fe ratio 1:10. The XRD results were compatible with the electrochemical investigations. In all studied samples beta-Sn, FeSn2 and Fe5Sn3 were detected. The presence of ferromagnetic Fe5Sn3 was not influenced by the Sn to Fe ions ratio in the electrolyte.
Original language | English |
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Pages (from-to) | 247-253 |
Number of pages | 7 |
Journal | Institute of Metal Finishing. Transactions: the international journal for surface engineering and coatings |
Volume | 97 |
Issue number | 5 |
DOIs | |
Publication status | Published - 3 Sep 2019 |
Austrian Fields of Science 2012
- 104005 Electrochemistry
- 211104 Metallurgy
Keywords
- Tin-iron electrodeposition
- ferrous-stannous electrolyte
- anodic stripping voltammetry
- Hull cell
- chloride
- XRD
- MAGNETIC-PROPERTIES
- ALLOYS
- CITRATE
- TIN