Study of Hydroxyapatite and Ag Coating on Pure Ti

• Main Authors: Wei-Lin Tsai, 蔡維霖
• Other Authors: 薛文景
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/chw8ze

碩士 === 國立臺北科技大學 === 材料科學與工程研究所 === 102 === Pure Titanium and Titanium alloys have been used in biomaterials due to the mechanical properties and bone-compatible. The metal implants contact to blood and tissue in body will release metal ions and scraps. This study use Hydroxyapatite (HA,Ca10(PO4)6(OH)2) coating on pure Ti. Electrochemical deposition can provide a highly free degree of process control and produce a thin film coating of HA. Pure Ti specimens were coated HA by electrochemical deposition at 60℃ from the electrolyte mixtures of Ca(NO3)2•4H2O and NH4H2PO4. Then put into Silver nitrate solution for 24 hours. Different phases of calcium phosphates may be fromed on the base layer depending on the additional voltage. HA was obtained on the surface at the voltage over 3.5 V. Highly pure HA coating was obtained by additional voltage from 16 V to 19 V. Use X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR) examine the component.