Biomimetic coatings on Ti-based alloys obtained by powder metallurgy for biomedical applications

E. C.S. Rigo, M. C. Bottino, B. D. Carraro, E. B. Taddei, V. A.R. Henriques, C. R.M. Silva, A. H.A. Bressiani, J. C. Bressiani

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Comparing to hydroxyapatite (HA), which forms a strong chemical bond with the bony tissues, metallic materials are not able to bond with bone. For this reason, a great variety of complex coating methods, such as pulse-laser deposition, ion-beam assisted deposition and plasma-spray has been used to form a HA layer onto metallic surfaces. This study evaluated the performance of the biomimetic technique on apatite-based coating formation on two Ti-alloys. Ti-13Nb-13Zr and Ti-35Nb-7Zr-5Ta were obtained via powder metallurgy. The Ti-based alloys were biomimetically coated using a technique which was modified from the conventional ones using a sodium silicate solution as the nucleant agent. Both alloys presented similar behavior in the evaluated conditions which means the formation of a homogeneous and well defined HA coating. These results show that these new non-toxic Ti-alloys seem to be very promising for biomedical applications.

Original languageEnglish (US)
Title of host publicationAdvanced Powder Technology V - Fifth International Latin American Conference on Powder Technology - PTECH2005
PublisherTrans Tech Publications Ltd
Number of pages6
ISBN (Print)0878494235, 9780878494231
StatePublished - Jan 1 2006
Externally publishedYes
Event5th International Latin-American Conference on Powder Technology, PTECH2005 - Salvador, Brazil
Duration: Oct 26 2005Oct 29 2005

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


Other5th International Latin-American Conference on Powder Technology, PTECH2005


  • Biomimetic method
  • Hydroxyapatite
  • Powder metallurgy
  • Sodium silicate
  • Titanium alloys

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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