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In Vivo Apatite Formation Induced on Titanium Metal and Its Alloys by Chemical Treatment

机译:化学处理诱导钛金属及其合金的体内磷灰石形成

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摘要

NaOH and heat treatments form an amorphous sodium titanate layer with a graded structure on the surfaces of titanium metal and its alloys. These treatments give no adverse effect on mechanical properties of the metals. Thus treated metals form an apatite layer on their surfaces in the living body by taking the calcium and phosphate ions from the surrounding fluid. This apatite layer is tightly integrated to the metal substrates through a graded structure, and bonds to the living bone in a short period, because of its structure and composition analogous to those of the bone mineral. This kind of bioactive metals are believed to be useful as bond substitutes even under load bearing conditions such as hip joints and dental implants.
机译:NaOH和热处理在钛金属及其合金的表面上形成具有梯度结构的非晶态钛酸钠层。这些处理对金属的机械性能没有不利影响。这样处理过的金属通过从周围流体中获取钙和磷酸根离子,在生物体内的表面上形成磷灰石层。该磷灰石层通过渐变结构紧密地结合到金属基底上,并由于其结构和组成类似于骨骼矿物质的结构和组成,因此可以在短时间内结合到活骨上。据信,即使在诸如髋关节和牙科植入物的承重条件下,这种生物活性金属也可用作粘合替代物。

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