RT journal article
T1 Thin Layers of Cerium Oxynitride Deposited via RF Sputtering
A1 Numpaque, Gloria Carolina
A1 Bethencourt Núñez, Manuel
A1 Cubillos, Gloria Ivonne
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 cerium oxynitride
K1 RF sputtering
K1 co-sputtering
K1 thin films
K1 coatings
K1 corrosion
AB Thin films of transition metal oxides and oxynitrides have proven highly effective inprotecting stainless steels against corrosion in both chemically aggressive environments and biological fluids. In the present work, cerium zirconium oxynitride thin films were deposited to enhance the corrosion resistance of surgical-grade stainless steel to be used in osteosynthesis processes. Two techniques were employed: co-sputtering and radiofrequency (RF) sputtering, and the morphology and corrosion efficiency of the coatings deposited by each technique were evaluated. X-ray diffraction, X-ray photoelectron spectroscopy and field emission transmission electron microscopy were used to characterize the morphological and chemical structure, respectively. Additionally, the corrosion resistance of the oxynitride-coated surgical grade stainless steel system (ZrCeOxNy-AISI 316L) was assessed using Hank’s solution as the corrosive electrolyte, to determine its resistance to corrosion in biological media. The results show that ZrCeOxNy coatings increase the corrosion resistance of surgical grade stainless steel by two orders of magnitude and that the Ce(III)/Ce(IV) equilibrium decreases the corrosion rate, thereby increasing the durability of the steel in a biological environment. The results show that Ce coatings increase the corrosion resistance of surgical grade stainless steel by two orders of magnitude and that the Ce(III)/Ce(IV) equilibrium decreases the corrosion rate, thereby increasing the durability of the steel in a biological environment.
SN 1996-1944
YR 2024
FD 2024-06-27
LK http://hdl.handle.net/10498/32877
UL http://hdl.handle.net/10498/32877
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026