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음극환원법에 의한 Pure Ti의 전기화학적 열수처리

  • Journal of Korean society of Dental Hygiene
  • Abbr : J Korean Soc Dent Hyg
  • 2007, 7(4), pp.471-479
  • Publisher : Korean Society of Dental Hygiene
  • Research Area : Medicine and Pharmacy > Dentistry

jaejoo song 1

1청암대학

ABSTRACT

Electrochemical hydrothermal treatment on Pure Titanium by the method of Cathodic reduction Jae-Joo song․1Kyeong-Seon Kim 1Dept. of Dental Hygiene College of Sunchon Chongam, Suncheon City Chonnam, Korea, 2Dept. of Dental Biomaterials School of Dentistry, Chonbuk National University, Jeonju, Korea, key wards: Titanium, Anodizing, Hydroxyapatite, Cathode reduction, Bioactivity The purpose of this study was to examine the optimum condition of impulse during the anodic spark oxidation applying pulse current as well as to find the excellent condition for HA precipitation the after electrochemical hydrothermal treatment by cathode reduction method. After anodic spark oxidation, the anodized specimen and the Pt plate connected cathode and anode, respectively. Hydrothermal treatment performed at 90, 120, 150 ℃ for 2 hours in the electrolyte containing K2HPO4, CaCl2・2H2O, Tris(Hydroxymethyl) -(CH2OH)3 CNH2(Aminomethane), and NaCl. The optimum impulse voltage for anodic spark oxidation was 350 V. The optimum pulse cycle measured at 10 mS. The HA crystals precipitated excellently by cathode reduction at 150℃ for 2 hours. The phases of anatase, rutile, and HA coating on the surface of modified titanium surface immersed in Hanks' solution for 3weeks were detected by XRD measurement and the intensity of HA crystal phase has increased by temperature and time of hydrothermal treatment. According to the our experiments, we found that Pure Ti will be good materials of bioactivity and biocompatibility

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