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多孔鈦表面梯度磷灰石涂層的簡單化學(xué)法制備
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TG146.23

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Graded Apatite Formation on Surface of Porous Titanium by Simple Chemistry
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    摘要:

    通過堿液處理或堿熱處理并在模擬體液(SBF)中浸泡，在多孔鈦表面制備了具有梯度結(jié)構(gòu)的類骨磷灰石層。結(jié)果表明，堿液處理使多孔鈦表面形成了網(wǎng)狀多孔結(jié)構(gòu)，組成為鈦酸鈉、金紅石等。熱處理后磷灰石在多孔鈦表面的初期沉積更均勻。涂層中鈣，磷、氧以及鈦元素的含量隨深度而變化，形成了梯度結(jié)構(gòu)。具有表面梯度磷灰石涂層的多孔鈦有望用于臨床矯形，以提高種植體的生物活性和骨結(jié)合強(qiáng)度。

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    Graded carbonate containing apatite coatings were formed on the surface of porous titanium alkali treated or alkali and heat treated by soaking in simulated body fluid. The results indicated that a porous network structure composed of sodium titanate and titanium oxide was formed on the surfaces after the porous titanium was treated by NaOH aqueous solution. Apatite nucleation on the surface of alkali and heat treated porous titanium at early stage was homogeneous. The contents of Ca, P and O decreased while that of Ti increased with the increasing of depth and a graded structure was formed near the surface of porous titanium. The porous titanium coating with the graded apatite is expected to be applied in clinical orthopedics to enhance bone implant bonding strength.

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梁芳慧 王克光 周廉.多孔鈦表面梯度磷灰石涂層的簡單化學(xué)法制備[J].稀有金屬材料與工程,2003,(11):930~933.[Liang Fanghui, Wang Keguang, Zhou Lian. Graded Apatite Formation on Surface of Porous Titanium by Simple Chemistry[J]. Rare Metal Materials and Engineering,2003,(11):930~933.]
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  • 最后修改日期:2002-02-19
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