Caracterización Anticorrosiva y de Biocompatibilidad en Recubrimientos Silicio-Titanio-Zirconio Sintetizados Vía Sol-gel y Depositados sobre Sustratos 316L

Abstract

ResumenSe sintetizaron, los sistemas ternarios [Si/Ti/Zr: 10/70/20] y [Si/Ti/Zr: 10/20/70] vía sol-gel y se aplicaron sobre sustratos de acero inoxidable 316L mediante la técnica de inmersión. En los recubrimientos obtenidos se evaluó la respuesta anticorrosiva en una solución fisiológica simulada mediante curvas potenciodinámicas de polarización. Se estudió la biocompatibilidad celular de osteoblastos; la adhesión sustrato-recubrimiento; la topografía superficial, el espesor y la rugosidad en los recubrimientos. Los resultados de este estudio permiten establecer un alto grado de efectividad anticorrosiva y buena biocompatibilidad. Los recubrimientos sintetizados vía sol-gel establecen su potencialidad como barrera anticorrosiva en función del sistema ternario aplicado al sustrato de acero inoxidable 316L.Palabras clave : propiedades anticorrosivas, sol-gel, silicio-titanio-zirconio, biocompatibilidad, adhesión Anticorrosive and Biocompatibility Characterization of SiliconTitanium-Zirconium Coatings Synthesized by Sol-gel and Deposited on Substrates 316L AbstractThe ternary systems [Si/Ti/Zr: 10/70/20] and [Si/Ti/Zr: 10/20/70] were synthesized via sol-gel and applied on 316L stainless steel substrates by dip-coating. In the coatings obtained, the corrosion response was evaluated in a simulated physiological solution using potentio-dynamic polarization curves. The cellular biocompatibility of osteoblasts was studied; Substrate-coating adhesion, and the surface topography and the roughness in the coatings. The results of this study allow establishing a high degree of anticorrosive effectiveness and good biocompatibility. Sol-gel uncoated coatings establish their potential as an anticorrosive barrier as a function of the ternary system applied to the 316L stainless steel substrate.

Characterization of the Tribological Properties of Bismuth-titanate Coatings Synthesized by Sol-gel on 316L Stainless Steel Substrates

“…In large part of the development of the industrial framework and in biomedical applications, AISI 316L stainless steel is widely used and is characterized by good resistance to corrosion, malleability, weldability, and biocompatibility. These properties make it a functional and versatile material in the chemical, naval, petrochemical, pharmaceutical, food and biomedical industries [18,19]. Stainless steel generally exhibits poor tribological properties limiting its applications requiring little wear [20].…”