In vitro apatite deposition on titania film derived from chemical treatment of Ti substrates with an oxysulfate solution containing hydrogen peroxide at low temperature

Fan Xiao, Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka

研究成果: Contribution to journalArticle査読

61 被引用数 (Scopus)

抄録

Thin titania film consisting of anatase and rutile was deposited on Ti substrates when soaked in a TiOSO4/H2O2 solution and aged in hot water. H2O2 corroded the Ti substrates, yielded a porous surface, and kept the solution from peptization. Thicker titania layers were formed in favor of both a greater supersaturation of Ti(IV) in the solution and a higher concentration of hydrated Ti(IV) derived by the corrosion of Ti and the hydrolysis of TiOSO4. The effects of aging in hot water were accounted for as they caused structural relaxation of the surface layer involving a rearrangement of Ti-OH and eliminating residual species like peroxide ions. Those titania layers were thus favored to deposit apatite when the Ti substrates were placed under a body environment, i.e. soaked in a simulated body fluid of Kokubo's recipe.

本文言語英語
ページ(範囲)271-276
ページ数6
ジャーナルThin Solid Films
441
1-2
DOI
出版ステータス出版済み - 9 22 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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