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改变碱液处理条件和基体材料 ,考察了这些参数对钛合金诱导磷灰石能力的影响。结果表明 :经过碱液处理钛合金表面形成了多孔网状 ,带负电荷的二氧化钛水凝胶层 ,在过饱和的模拟体液中可沉积出骨状磷灰石层 ;随碱液浓度、温度和处理时间增加 ,凝胶层的孔径和厚度增加 ,诱导形成磷灰石的能力增强 ;不同基体材料的诱导能力为 :Ti>TC4,Ti75 >Ti Zr。钛合金碱液处理后可在模拟体液中沉积出磷灰石层 ,因此碱液处理使钛合金表现出生物活性。
Alkali treatment conditions and substrate materials were changed, and the influence of these parameters on the ability of inducing apatite by titanium alloy was investigated. The results show that porous titanium dioxide hydrogel layer with negative charges can be formed on the surface of titanium alloy after alkali treatment, and the osteoid apatite layer can be deposited in supersaturated simulated body fluid. With the concentration of alkali solution, temperature and The treatment time increases, the pore size and thickness of the gel layer increase, the ability to induce the formation of apatite enhanced; different substrate induction: Ti> TC4, Ti75> TiZr. Titanium alloy lye can be deposited in simulated body fluids apatite layer, so lye treatment of titanium alloys showed biological activity.