Chapter 83. Development of Hydroxyapatite Coating on Porous Titanium Via Electro–Deposition Technique

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. M. G. Kutty,
  2. W. A. Prisbery,
  3. S. Bhaduri,
  4. J. R. Jokisaari and
  5. S. B. Bhaduri

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch83

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Kutty, M. G., Prisbery, W. A., Bhaduri, S., Jokisaari, J. R. and Bhaduri, S. B. (2002) Development of Hydroxyapatite Coating on Porous Titanium Via Electro–Deposition Technique, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch83

Author Information

  1. Department of Materials and Metallurgical Engineering University of Idaho Moscow, Idaho 83844–3024

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • hydroxyapatite coating;
  • porous titanium;
  • electro-deposition technique;
  • microwave sintering;
  • biocompatible ceramics

Summary

Titanium disks were fabricated with a porous surface layer and a dense inner core by utilizing microwave sintering. Hydroxyapatite (HA) was electro-deposited on the surface of the titanium. The electrolyte consisted of Ca(NO3)2.4H2O and NH4H2PO4. This initial investigation examined the effect of current (0.2 and 0.4 Amperes) and duration (1, 5, 10 and 30 minutes) on coating morphology and phase evolution. The capability of electodeposition technique to infiltrate the pores of the titanium substrate was also considered. The interconnected surface pores allowed for infiltration of the HA coating as seen through scanning electron microscopy. Uniform coating of HA was best achieved with lower current values (0.2 Ampere) as it reduced the evolution of hydrogen gas during the coating. The application of pulsed current further improved the uniformity of the coating. Phase analysis of the coating, via X–ray Diffraction, revealed the presence of calcium hydroxide during the initial stages of the electro-deposition process.