Magnesium doped hydroxyapatite-based coatings obtained by pulsed galvanostatic electrochemical deposition with adjustable electrochemical behavior

Diana Maria Vranceanu, Ionut Cornel Ionescu, Elena Ungureanu, Mihai Ovidiu Cojocaru, Alina Vladescu, Cosmin Mihai Cotrut

Research output: Contribution to journalArticle

Abstract

The aim of this study was to adapt the electrochemical behavior in synthetic body fluid (SBF) of hydroxyapatite-based coatings obtained by pulsed galvanostatic electrochemical deposition through addition of Mg in different concentrations. The coatings were obtained by electrochemical deposition in a typical three electrodes electrochemical cell in galvanic pulsed mode. The electrolyte was obtained by subsequently dissolving Ca(NO3)2 4H2O, NH4H2PO4, and Mg(NO3)2 6H2O in ultra-pure water and the pH value was set to 5. The morphology consists of elongated and thin ribbon-like crystals for hydroxyapatite (HAp), which after the addition of Mg became a little wider. The elemental and phase composition evidenced that HAp was successfully doped with Mg through pulsed galvanostatic electrochemical deposition. The characteristics and properties of hydroxyapatite obtained electrochemically can be controlled by adding Mg in different concentrations, thus being able to obtain materials with different properties and characteristics. In addition, the addition of Mg can lead to the control of hydroxyapatite bioactive ceramics in terms of dissolution rate.

Original languageEnglish
Article number727
JournalCoatings
Volume10
Issue number8
DOIs
Publication statusPublished - Aug 2020

Keywords

  • Coatings
  • Doped hydroxyapatite
  • Electrochemical behavior
  • Electrochemical deposition
  • Magnesium

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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