氟离子对纯钛种植材料耐腐蚀性能的影响  

Corrosion resistance of pure titanium in simulated body fluids containing fluoride

作　　者：陈建治[1] 谷志远[1] 王磊[2] 石玉龙[3] 

机构地区：[1]浙江中医药大学口腔医学院,310053 [2]青岛大学职工医院口腔科,266071 [3]青岛科技大学材料科学与工程学院,266042

出　　处：《中国口腔种植学杂志》2011年第4期201-203,共3页Chinese Journal of Oral Implantology

摘　　要：目的:研究氟离子对纯钛种植材料耐腐蚀性能的影响。方法:利用电化学方法测量纯钛的极化曲线和交流阻抗。电化学实验溶液体系分为两组,分别为不含氟模拟体液组和模拟体液加NaF组。实验分为极化曲线测量和交流阻抗测量。结果:自腐蚀电位两者比较无显著性差异(P>0.05),自腐蚀电流密度和交流阻抗两者比较均有显著性差异(P<0.05和P<0.001)。结论:氟离子可以降低纯钛的耐腐蚀性能。Objective： To study the corrosion resistance of pure titanium by electrochemical methods in simulated body fluid or F-containing simulated body fluid.Methods： Polarization curves and electrochemical impedance spectrum in electrochemical test solution were examined by electrochemical methods.Electrochemical test solution system is divided into two groups,simulated body fluid group or F-containing simulated body fluid group.The experimental contents include polarization curves and electrochemical impedance measurements.Results： The difference of the self-corrosion potential between two groups was not significant（P〈0.05）.Self-corrosion current density of pure titanium increased significantly（P〈0.05）,and electrochemical impedance reduced significantly（P〈0.001） in F-containing simulated body fluid compared to in simulated body fluid.Conclusion： Fluoride ions decrease the corrosion resistance of pure titanium.

关 键 词：钛 耐腐蚀性 氟离子 

分 类 号：R783.1[医药卫生—口腔医学]