| 摘要 |
PURPOSE:To increase the chemical stability and strength of an implant by forming a titanium phosphide layer around the external surface of a core material, and covering the layer with a calcium phosphate layer. CONSTITUTION:A phosphoric triester solution diluted double with propanol is uniformly applied to a core material 11 of titanium, dried at a temperature of approximately 120 deg.C and baked at a temperature of approximately 600 deg.C, thereby forming a titanium phosphide layer 12 on the surface of the core material 11. Then, plasma flame spraying is applied, using alpha-TCP (alpha-tricalcium phosphate) as a flame spraying material, thereby forming an alpha-TCP layer 13 on the outermost surface of the core material 11. In addition, the material 11 so coated is subjected to hydrothermal treatment in a water solution of a calcium phosphate for converting the alpha-TCP layer 13 to a hydroxyapatite layer 13. |
