Influence of deposition temperature on the properties of hydroxyapatite obtained by electrochemical assisted deposition

Cosmin M. Cotrut, Alina Vladescu, Mihaela Dinu, Diana M. Vranceanu

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Surface functionalization of pure titanium (cp-Ti) with hydroxyapatite (HAp) was successfully achieved by means of electrochemical deposition (ED) in a solution containing calcium nitrate and ammonium dihydrogen phosphate. The aim of this study is to evaluate the influence of the deposition temperature on the elemental and phase composition, chemical bonds, morphology, and in vitro electrochemical behaviour in biological simulated media (simulated body fluid - SBF). The roughness and wettability of the developed coatings are also investigated. By increasing the deposition temperature from 50 °C to 75 °C, the HAp coatings present a well-crystalized structure, denser and a nobler behaviour in terms of electrochemical behaviour in SBF at 37 °C. Also, by increasing the deposition temperature from 50 °C to 75 °C, the contact angle has decreased from 76.1° to 27.4°, exhibiting a highly hydrophilic surface. Taking into consideration all the obtained data, electrodeposition of HAp at 75 °C was found preferable when compared to 50 °C. The characteristics of the HAp coatings can be easily adjusted by optimizing the electrochemical deposition parameters and/or controlling specific features like pH, temperature, or ionic concentration of electrolyte, etc.

Original languageEnglish
Pages (from-to)669-677
Number of pages9
JournalCeramics International
Volume44
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • A: Chemical preparation
  • B: Electron microscopy, interfaces, X-ray method
  • C: Corrosion
  • D: apatite
  • E: Biomedical applications

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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