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FUNCTION OF A COMBINATORIAL ADDITIVE ON ALKALINE NON-CYANIDE ZINC PLATING |
DU Nan1, SHU Weifa2, WANG Chunxia1, WANG Shuaixing1, CHEN Qinglong2 |
1.National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology Institute,Nanchang Hangkong University, Nanchang 330063
2. Nanjing Engineering Center of Aircraft Systems, Nanjing 211106 |
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Abstract The nanocrystalline zinc coating which the grain size was within 60 nm was obtained when a combinatorial additive was added to alkaline non-cyanide bath. Besides, the role of two components of combinatorial additive was analyzed through comparing the differences with deposition potential、morphology and grain size of zinc coatings which were obtained in the bath contained additives or not. The results showed that the additive A played a role of grain refinement, the additive B played a role of leveling, and a strong synergistic effect was existed when both A and B was used.
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Received: 31 March 2011
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Corresponding Authors:
DU Nan
E-mail: d_unan@sina.com
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