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堿液處理鈦合金表面軟復(fù)合磷酸鈣層
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R318.08 TG178

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國家自然科學(xué)基金(50002008)，西安交通大學(xué)“行動(dòng)計(jì)劃”，博士論文基金(2000-02)資助項(xiàng)目


Surface Softly Compounding of Calcium Phosphate Layer in Alkali Treated Titanium Alloy
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    摘要:

    鈦合金（Ti6Al4V)經(jīng)過NaOH堿液處理后表面形成了多孔網(wǎng)狀、弱結(jié)晶的鈦酸鈉凝膠層；隨堿液濃度和處理時(shí)間增加，孔的尺寸增加。鈦酸鈉凝膠層可在快速鈣化溶液中誘導(dǎo)沉積出（002）取向的磷酸八鈣和／或磷灰石；而在模擬體液中誘導(dǎo)沉積出無取向的骨狀磷灰石。堿液處理?xiàng)l件和鈣磷溶液的離子種類、濃度和pH值是影響鈦合金軟復(fù)合磷酸鈣層成分和沉積速度的兩個(gè)因素。

    Abstract:

    Porous network of weakly crystallized sodium titanate gel layer was formed on the surface of titanium alloys (Ti6Al4V) after treated by NaOH alkali solution. The pore size increases with the alkali concentration and treating time. The sodium titanate gel layer can induce the deposition of octacalcium phosphate and /or apatite orientated along (002) plane from the fast calcification solution, and bone like apatite layer from the simulated body fluid without orientation. The two factors responsible for the composition and depositing speed of the softly compounded calcium phosphate layer on alkali treated titanium alloy are the alkali treatment conditions and the ion species, their concentrations and the pH value of the calcium phosphate solution.

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付濤 李金勇 等.堿液處理鈦合金表面軟復(fù)合磷酸鈣層[J].稀有金屬材料與工程,2003,(2):137~140.[Fu Tao, Li Jinyong, Han Yong, Xu Kewei. Surface Softly Compounding of Calcium Phosphate Layer in Alkali Treated Titanium Alloy[J]. Rare Metal Materials and Engineering,2003,(2):137~140.]
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  • 最后修改日期:2001-07-06
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