Corrosion behavior and surface characterization of titanium in solution containing fluoride and albumin.
Corrosion behavior and surface characterization of titanium in solution containing fluoride and albumin.
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DOI：
10.1016/j.biomaterials.2004.03.025
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发表时间：
2004-05
期刊：
影响因子：
14
通讯作者：
S. Takemoto;M. Hattori;M. Yoshinari;E. Kawada;Y. Oda
中科院分区：
文献类型：
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作者：
S. Takemoto;M. Hattori;M. Yoshinari;E. Kawada;Y. Oda
本研究的目的是证明白蛋白在含有2.0g/l氟化物和0.1或1.0g/l白蛋白的溶液中对钛腐蚀行为的作用。研究了钛表面钝化膜在该溶液中的腐蚀行为和表面表征。此外，还考察了溶液中pH值的变化和溶解钛的浓度。结果表明，钛在含氟溶液中的腐蚀明显，在含氟溶液中加入白蛋白可抑制腐蚀。在含氟溶液中检测钛表面的氟，并确定钛的溶解。将钛浸入含有氟化物和白蛋白的溶液中，无论白蛋白浓度如何，钛都有一层白蛋白膜。此外，溶液中钛的溶解量比不含白蛋白的溶液少。结果表明，在钝化膜上或膜内形成吸附白蛋白膜，不仅可以保护钛不受氟化物的侵蚀，还可以抑制氟化钛化合物的溶解。
The objective of this study was to demonstrate the role of albumin on the corrosion behavior of titanium in a solution containing 2.0g/l fluoride and either 0.1 or 1.0g/l albumin. The corrosion behavior and surface characterization of passive films on titanium immersed in such a solution were examined. In addition, the change in pH and the concentration of dissolved titanium in the solution were examined. The results showed that the corrosion of titanium in a solution containing fluoride was distinct, and that adding albumin to the solution containing fluoride suppressed corrosion. Fluorine was detected on the titanium surface immersed in the solution containing fluoride, and dissolution of the titanium was confirmed. The titanium immersed in a solution containing both fluoride and albumin had an albumin film regardless of the albumin concentration. In addition, the amount of dissolved titanium from the titanium immersed in the solution was less than when the solution contained no albumin. It was suggested that the formation of adsorbed albumin films on or in the passive film acted to not only protect the titanium from attack by the fluoride but also suppressed dissolution of the titanium-fluoride compounds.