Apatite induction on titania due to combined chemical and thermal treatments of titanium

S. Hayakawa, K. Shibata, K. Tsuru, A. Osaka

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


We examined the effects of the thermal treatment temperature and Ta(V) species on in vitro apatite forming-ability of titania due to chemical treatment of titanium substrates. The formation of peroxo Ta(V) species (Ta(V)O2) in the H2O2 solution at 60°C effectively promoted not only the decomposition and the elimination of the peroxo and hydroperoxide groups, such as Ti-OOH and Ta-OOH in the titania gel but also the decomposition of H2O2 compared with the formation of peroxo Ti(IV) species (Ti(IV)O2), resulting in enhanced ability of apatite deposition in spite of thermal treatment at the lower temperature such as 100°C. The combined chemical and thermal treatments were applicable for providing both pieces of Ti and Ti mesh with bioactivity.

Original languageEnglish
Pages (from-to)71-74
Number of pages4
JournalKey Engineering Materials
Publication statusPublished - 2002
Event14th International Symposium on Ceramics in Medicine-Annual Meeting of the International Society for Ceramics in Medicine BIOCERAMICS'01 (ISCM) - Palm Springs, CA, United States
Duration: Nov 14 2001Nov 17 2001


  • Apatite
  • Chemical Treatment
  • Hydrogen Peroxide
  • Thermal Treatment
  • Titania
  • Titanium

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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