One-step approach for the fabrication and characterization of hydroxyapatite/TiO2 composite ceramic coatings by micro-arc oxidation in situ on the surface of pure titanium

  • Wuchao Shi
  • , Limin Dong*
  • , Qiang Li
  • , Chen Wang
  • , Tongxiang Liang
  • , Jiemo Tian
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

The hydroxyapatite (HA)/TiO2 composite ceramic coatings were formed by micro-arc oxidation (MAO) on pure titanium in mixed electrolyte of calcium glycerophosphate and calcium acetate with DC pulse power. Microstructure, phase composition, porosity and thickness of the coatings were examined using SEM, XRD, Image-Pro Plus 6.0 Image analysis system and Eddy current thickness gauge. Results indicate that MAO coatings containing calcium and phosphorus were formed in situ on pure titanium surface. Pores formed by the discharge channels distribute uniformly on the coatings surface, and the inner layer is dense. The principal crystalline phases of the MAO coatings are anatase TiO2, rutile TiO2, HA, Ca3(PO 4)2 and matrix Ti. The interface is metallurgical bonding and the bonding strength is strong. And reaction time makes a greater influence than voltage in thickness and voltage makes a greater influence than time in porosity.

Original languageEnglish
Title of host publicationHigh-Performance Ceramics VIII
PublisherTrans Tech Publications Ltd
Pages598-601
Number of pages4
ISBN (Print)9783038350415
DOIs
StatePublished - 2014
Event8th International Conference on High-Performance Ceramics, CICC 2013 - Chongqing, China
Duration: 4 Nov 20137 Nov 2013

Publication series

NameKey Engineering Materials
Volume602-603
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference8th International Conference on High-Performance Ceramics, CICC 2013
Country/TerritoryChina
CityChongqing
Period4/11/137/11/13

Keywords

  • Ceramic coatings
  • Hydroxyapatite
  • Micro-arc oxidation
  • Pure titanium

Fingerprint

Dive into the research topics of 'One-step approach for the fabrication and characterization of hydroxyapatite/TiO2 composite ceramic coatings by micro-arc oxidation in situ on the surface of pure titanium'. Together they form a unique fingerprint.

Cite this