| 柠檬酸根对镍钛合金表面电沉积羟基磷灰石涂层的影响 |
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| 引用本文： | 何从军,黄勇,曹郁,杨野乔,庞小峰.柠檬酸根对镍钛合金表面电沉积羟基磷灰石涂层的影响[J].电镀与涂饰,2011,30(6):73-76. |
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| 作者姓名： | 何从军 黄勇 曹郁 杨野乔 庞小峰 |
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| 作者单位： | 电子科技大学生命科学与技术学院,四川,成都,610054 |
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| 摘 要： | 在含有0.042 mol/L Ca2+、0.025 mol/L H,PO-4及2.5×10-4mol/L柠檬酸根的电解液中进行阴极电沉积,成功地在NiTi合金表面制备了羟基磷灰石(HA)涂层.在电沉积之前,用5 mol/LNaOH对NiTi合金进行碱热预处理,可在其表面形成一层纳米针状氧化物.与不加柠檬酸根的电解液相比...
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| 关 键 词： | 镍钛合金 碱热预处理 阴极电沉积 羟基磷灰石 柠檬酸根 |
Effect of citrate on electrochemical deposition of hydroxyapatite on nitinol alloy surface |
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| HE Cong-jun,HUANG Yong,CAO Yu,YANG Ye-qiao,PANG Xiao-feng.Effect of citrate on electrochemical deposition of hydroxyapatite on nitinol alloy surface[J].Electroplating & Finishing,2011,30(6):73-76. |
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| Authors: | HE Cong-jun HUANG Yong CAO Yu YANG Ye-qiao PANG Xiao-feng |
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| Affiliation: | HE Cong-jun,HUANG Yong,CAO Yu,YANG Ye-qiao,PANG Xiao-feng College of Life Science and Technology,University of Electronic Science and Technology of China,Chengdu 610054,China |
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| Abstract: | A hydroxyapatite(HA) coating was successfully prepared on NiTi alloy surface by cathodic electrodeposition from an electrolyte containing Ca2+ 0.042 mol/L,H 2 PO4? 0.025 mol/L,and citrate 2.5 × 10?4 mol/L. A nanoscale needle-like oxide layer was formed on the surface of NiTi alloy by thermo-alkaline pretreatment with a 5 mol/L NaOH solution. The coating deposited from the citrate-containing electrolyte is more compact,well-distributed and finer as compared with that deposited without citrate in electrolyte,indicating the significant inhibition effect of citrate on the growth of HA crystals. The immersion test in simulated body fluid proved that the as-prepared coating has good bioactivity to induce the formation of carbonated hydroxy-apatite under simulated physiological environment. |
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| Keywords: | nickel–titanium alloy thermo-alkaline pretreatment cathodic electrodeposition hydroxyapatite citrate |
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