Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating

Chun Chao Chang, Chiung Chi Wang, Chia Wei Wu, Shou Ching Liu, Fu Der Mai

研究成果: 雜誌貢獻文章

16 引文 斯高帕斯(Scopus)

摘要

Increasing environmental concern has led to the restrictive use of chromate conversion coatings to protect Al-alloys from corrosion. Our research is under way to find environmentally compliant substitute coating such as Si/Zr/Ce hybrid coating. The corrosion protection effect of green pretreatment reagent consisted of Si-containing base solution, Ce- and Zr-containing sealing solutions on the corrosion protection of Al-alloys was studied with a 3.5% NaCl aqueous testing solution. The correlation between the corrosion resistance measured by electrochemical impedance spectroscopy (EIS) and surface chemical composition of the hybrid coating measured by time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was studied. The proposed green pretreatment reagent was found improve the corrosion protection of Al-alloys, presumably due to the formation of protective oxide film acting as an oxygen barrier.

原文英語
頁(從 - 到)1531-1533
頁數3
期刊Applied Surface Science
255
發行號4
DOIs
出版狀態已發佈 - 十二月 15 2008

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

指紋 深入研究「Using ToF-SIMS and EIS to evaluate green pretreatment reagent: Corrosion protection of aluminum alloy by silica/zirconium/cerium hybrid coating」主題。共同形成了獨特的指紋。

  • 引用此