Evaluation of Degradability of CaTiO_3 Thin Films in Simulated Body Fluids

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<i>In vitro</i> dissolution behaviors of CaTiO<SUB>3</SUB> thin films deposited with ion beam assisted deposition (IBAD) and sputter-deposition techniques were investigated using Rutherford backscattering spectrometry (RBS) and Auger electron spectroscopy (AES). <i>In vitro</i> test was carried out by immersion in a simulated body fluid at 37°C for 5, 24, and 888 h. The dissolution of titanium ions from CaTiO<SUB>3</SUB> film was almost independent of deposition techniques while that of calcium ions was dependent on those. In the specimens deposited by sputter-deposition, the dissolution rate of the calcium ions increased proportionally with time, and in the case of IBAD, it increased proportionally with the logarithm of time. Furthermore, in IBAD, the dissolution rate of the calcium ions was also intimately related with the total kinetic energy of the titanium ions when implanted. The results reveal that IBAD CaTiO<SUB>3</SUB> coating film makes it possible to control dissolution rate of calcium ions from the film.

収録刊行物

  • Materials transactions

    Materials transactions 45(5), 1778-1781, 2004-05-20

    公益社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10013072106
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    6951728
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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