Formation of Calcium-Phosphate Coatings on Ti6Al4V Substrates by an Autocatalytic Deposition Route

Abstract:

The aim of this research is to develop a methodology to obtain bioactive coatings on Ti6Al4V substrates pretreated with NaOH 5M for 24 h, by an autocatalytic route using an acid bath. The autocatalytic bath was developed in order to produce bioactive coatings with a Ca/P molar ratio of 1.2 by dissolving the appropriate amounts of CaCl₂ and NaH₂PO₂ as precursors and C₄H₄Na₂O₄·6H₂O as a reducing agent in distilled water, at pH values of 5.5 and 6.0, temperatures of 80 and 90°C, and two immersion times of 60 and 180 min. It was observed that the thickness and morphology of the coating changed according to the processing conditions.

• Periodical: Key Engineering Materials (Volume 631)
• Pages: 247-252
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.631.247
• Online since: November 2014
• Authors: E.A. Aguilar-Reyes*, C.A. León-Patiño, B. Jacinto-Díaz
• Keywords: Autocatalytic Route, Bioactive Coatings, Ti6Al4V

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