Effect of SiC interlayer between Ti6Al4V alloy and hydroxyapatite films

Funda Ak Azem, Isil Birlik, Viorel Braic, Mustafa Toparli, Erdal Celik, Anca Parau, Adrian Kiss, Irina Titorencu, Alina Vladescu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Bioactive coatings are frequently used to improve the osseointegration of the metallic implants used in dentistry or orthopaedics. Among different types of bioactive coatings, hydroxyapatite (Ca10(PO4)6(OH)2) is one of the most extensively used due to its chemical similarities to the components of bones and teeth. In this article, production and characterization of hydroxyapatite films deposited on Ti6Al4V alloy prepared by magnetron sputtering were reported. Besides, SiC was deposited on substrate surface to study the interlayer effect. Obtained coatings were annealed at 600 °C for 30 and 120 min in a mixed atmosphere of N2 + H2O vapours with the heating rate of 12 °C min-1. The effects of SiC interlayer and heat treatment parameters on the structural, mechanical and corrosion properties were investigated. After heat treatment process, the crystalline hydroxyapatite was obtained. Additionally, cell viability tests were performed. The results show that the presence of the SiC interlayer contributes a decrease in surface roughness and improves the mechanical properties and corrosion performance of the hydroxyapatite coatings. Biological properties were not affected by the presence of the SiC interlayer.

Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume229
Issue number4
DOIs
Publication statusPublished - 9 Apr 2015
Externally publishedYes

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Keywords

  • Bioactive materials
  • Bioceramic
  • Biomechanical testing/analysis
  • Bone cell biology
  • Bone tissue engineering

ASJC Scopus subject areas

  • Mechanical Engineering

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