Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy

S. J. Li, R. Yang, M. Niinomi, Y. L. Hao, Y. Y. Cui

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

The bioconductivity of a new biomedical titanium alloy Ti-29Nb-13Ta-4.6Zr achieved by a combination of surface oxidation and alkali treatment is reported in this paper. Oxidation treatment at 400°C for 24h was found to result in the formation of a hard layer on the surface of the alloy. Immersion in a protein-free simulated body fluid and fast calcification solution led to the growth of calcium phosphate (Ca-P) phase on the oxidized and alkali-treated alloy, and the new bioconductive surface was still harder than the substrate. The surface processes during various treatment and immersion processes were investigated in detail, and the morphology of the calcium phosphate crystals was shown to be determined by the concentrations of Ca and P in the solution.

Original languageEnglish
Pages (from-to)2525-2532
Number of pages8
JournalBiomaterials
Volume25
Issue number13
DOIs
Publication statusPublished - 2004 Jun

Keywords

  • Calcium phosphate coating
  • Crystal growth
  • Metal surface treatment
  • Oxidation
  • Titanium alloy

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Formation and growth of calcium phosphate on the surface of oxidized Ti-29Nb-13Ta-4.6Zr alloy'. Together they form a unique fingerprint.

Cite this