Electrophoretic deposition of a bioactive Si, Ca–rich glass coating on 316L stainless steel for biomedical applications

 

H. H. Rodríguez*¹, A. Maldonado–Reyes², D. A. Cortés–Hernández³

 

¹ Universidad Politécnica de Guanajuato Av. Universidad Norte S/N, S/colonia, 38486 Juan Alonso Cortázar, Guanajuato, Mexico

² Instituto Tecnológico de Cd. Victoria Apartado Postal 175, 87010, Cd. Victoria, Tamaulipas, Mexico

³ Cinvestav–Unidad Saltillo, Carr. Saltillo–Mty, Km 13, Apdo. Postal 663, 25000 Saltillo, Coahuila, Mexico.

 

ABSTRACT

This work consisted in the development and characterization of a vitroceramic coating on 316L stainless steel by means of electrophoretic deposition (EPD). This vitroceramic coating was obtained through a Si–, Ca–rich glass coating crystallization. The electrophoretic deposition tests were performed on 316L stainless steel mechanically polished substrates. The results suggest that the electrophoretic coatings adhered well to the metallic surfaces. The results demonstrate that the crystallized coatings are potentially bioactive, because a dense and homogeneous apatite layer, similar to a bone, makes up.

Keywords: vitroceramics, electrophoretic deposition, biomaterials, apatite.

 

RESUMEN

Este trabajo consistió en el desarrollo y caracterización de un recubrimiento vitro–cerámico sobre acero inoxidable 316L, obtenido por medio de un proceso de deposición electroforética. El recubrimiento vitro–cerámico fue obtenido al cristalizar una capa de vidrio rica en calcio y silicio. Las pruebas de deposición electroforética fueron realizadas sobre sustratos de acero inoxidable 316L, pulidos mecánicamente. Los resultados sugieren que los recubrimientos electroforéticos fueron muy bien adheridos a la superficie metálica. Los resultados demuestran que los recubrimientos cristalizados son potencialmente bio–activos, debido a la formación de una capa densa y homogénea de apatita similar al hueso.

 

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