Thin Carbonate Apatite Layer Deposited on Titanium using Molecular Precursor Method

DOI 被引用文献1件
  • HAYAKAWA Tohru
    Department of Dental Biomaterials, Research Institute or Oral Science, Nihon University School of Dentistry at Matsudo, Japan
  • TAKAHASHI Kenichi
    Department of Dental Materials, Nihon University Graduate School of Dentistry at Matsudo, Japan
  • YOSHINARI Masao
    Department of Dental Materials Science and Oral Health Science Center, Tokyo Dental College, Japan
  • HARA Hiroki
    Coordination Engineering Laboratory, Faculty of Engineering, Kogakuin University, Japan
  • SATO Mitsunobu
    Coordination Engineering Laboratory, Faculty of Engineering, Kogakuin University, Japan
  • NEMOTO Kimiya
    Department of Dental Biomaterials, Research Institute or Oral Science, Nihon University School of Dentistry at Matsudo, Japan

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Thin carbonate apatite was deposited onto titanium using a molecular precursor method, which is a novel technique. The molecular precursor solution was prepared by the addition of dibutylammonium diphosphate salt to an ethanol solution of Ca-EDTA complex at a Ca/P ratio=1.67. The molecular precursor solution was applied to titanium and fired at different temperatures at 600°C for 2 hr using a furnace under ordinary atmospheric conditions. The coated surface was bombarded with argon ions for 5, 10, and 15 minutes. Crack formation on the coated surface was increased according to the prolongation of argon ion etching time. The presence of carbonate group inside the coatings was detected by Fourier transform infrared reflection-absorption spectroscopy. Carbonate group was present after 15 min etching. It is concluded that carbonate group was trapped inside the coated CA film when used with molecular precursor method.

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