info:eu-repo/semantics/article
Optimization of the surface properties of nanostructured Ni-W alloys on steel by a mixed silane layer
Fecha
2015-06Registro en:
Quiroga Argañaraz, María Pía; Ramallo Lopez, Jose Martin; Benitez, Guillermo Alfredo; Rubert, Aldo Alberto; Prieto, Eduardo Daniel; et al.; Optimization of the surface properties of nanostructured Ni-W alloys on steel by a mixed silane layer; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 17; 21; 6-2015; 14201-14207
1463-9076
CONICET Digital
CONICET
Autor
Quiroga Argañaraz, María Pía
Ramallo Lopez, Jose Martin
Benitez, Guillermo Alfredo
Rubert, Aldo Alberto
Prieto, Eduardo Daniel
Gassa, Liliana Mabel
Salvarezza, Roberto Carlos
Vela, Maria Elena
Resumen
Ni-W nanostructured coatings electrodeposited on steel by galvanostatic pulses were functionalized by tetraethoxysilane (TEOS) and octadecyltrichlorosilane (OTS) in a two-step procedure. A silica-rich layer is formed by the reaction of TEOS with the metal coating surface oxides, which allows a further reaction with OTS forming a hydrocarbon-silica outer network. This mixed silane layer provides hydrophobicity and improves the corrosion behavior of the Ni-W surface coatings without modifying their excellent mechanical properties.