Electrodeposition of ternary alloys Fe-Mo-P and Fe-W-P. Coatings characterization

• Grant number: 15/21788-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: November 01, 2015
• End date: July 31, 2016
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Ivani Aparecida Carlos
• Grantee: Elton Patrick Barbano
• Supervisor: Elisa Valles Gimenez
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: Universitat de Barcelona (UB), Spain
• Associated to the scholarship: 13/05821-2 - Study of electrodeposition of Fe-Mo-P and Fe-W-P ternary alloys. Characterization of films., BP.DR

Abstract

Our research group has been specializing on the study and development of non-cyanide baths and in the absence of citrate anions to the electrodeposition of alloys, since cyanide bath exhibit high toxicity and bath containing citrate may decompose during the deposition process. Our laboratory has interest in the study of the electrodeposition of Fe-Mo and Fe-W containing P, since is reported in the literature that alloys of iron containing phosphorus, may have a number of properties, for example, corrosion resistance. The Fe-Mo, Fe-P and Fe-W electrodeposition baths are generally based on citrate, which are very sensitive to changes in pH of the bath. As mentioned above, citrate may be reduced at the cathode, producing organic substances that make the control of the process difficult.Thus, this project is intended to produce electrodeposits of Fe-Mo-P and Fe-W-P on copper substrate, in the presence of NTA (nitrilotriacetic acid), as an alternative to the citrate-based baths used in the deposition of Fe-Mo alloys, Fe-W and Fe-P. The characterization of electrodeposits of Fe-Mo-P and Fe-W-P will be performed by Scanning Electron Microscopy (SEM); Energy dispersive x-ray spectroscopy (EDS); X-ray diffraction (XRD); X-ray fluorescence and corrosion tests. Moreover, magnetic characterization of these electrodeposits will be performed.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BARBANO, E. P.; CARLOS, I. A.; VALLES, E.. Electrochemical synthesis of Fe-W and Fe-W-P magnetic amorphous films and Fe-W nanowires. SURFACE & COATINGS TECHNOLOGY, v. 324, p. 80-84, SEP 15 2017. (15/21788-0)

BARBANO, E. P.; DA SILVA, F. S.; CARLOS, I. A.; VALLES, E.. New electrolytic bath for electrodeposition of protective binary FeMo and ternary FeMoP films. Journal of Alloys and Compounds, v. 695, p. 319-328, FEB 25 2017. (15/21788-0)