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    LUO Jian-jun, MA Lin, SUN Zhi-guo, TANG Guang-ze. Anti-tarnishing Amorphous Alumina Films on Silver Coins[J]. Corrosion & Protection, 2010, 31(6): 491-493.
    Citation: LUO Jian-jun, MA Lin, SUN Zhi-guo, TANG Guang-ze. Anti-tarnishing Amorphous Alumina Films on Silver Coins[J]. Corrosion & Protection, 2010, 31(6): 491-493.
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    Anti-tarnishing Amorphous Alumina Films on Silver Coins

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    • Received Date: September 23, 2009
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    • Amorphous alumina films were deposited on silver coin surfaces by reactive magnetron sputtering to improve the anti-tarnishing property of silver.Glance angle X-ray diffraction (GXRD),X-ray photoelectron spectoscopy (XPS) and atomic force microscopy (AFM) were used to analyze the chemical state and surface morphology of alumina films.The corrosion potential of silver coins covered with amorphous alumina was increased,and corrosion current density was decreased in 0.5 mol/L NaCl+10 mmol/L Na2S mixing solution.The accelerated test in H2S vapor showed that the alumina film had excellent anti-tarnishing properties.
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      • References (11)
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