• 제목/요약/키워드: Tokyo

검색결과 3,725건 처리시간 0.038초

Target-Composition Effect on Hydroxyapatite Thin Films Coated on Titanium by r.f. Sputtering

  • Hamagami, Jun-ichi;Kokubu, Daisuke;Umegaki, Takao;Yamashita, Kimihiro
    • The Korean Journal of Ceramics
    • /
    • 제4권4호
    • /
    • pp.372-376
    • /
    • 1998
  • Using calcium-phosphate-powder targets with the Ca/P ratios of 1.0-1.67, hydroxyapatite ($Ca_{10}(PO_4)_6(OH)_2$, HAp) thin films with 4-7㎛ thickness were prepared on titanium metal plates by r.f. magnetron sputtering, followed an annealing at $200^{\circ}C$ for 24 hr under a high water vapor pressure using an autoclave. All the specimens were systematically characterized by XRD, FT-IR, SEM and EDS analyses. The post-annealed films were confirmed to be a nonstoichiometric oxyhydroxyapatite by XRD and FT-IR measurements.

  • PDF