%0 Journal Article
%T INFLUENCE OF THE PIGMENT SHAPE ON THE ELECTROCHEMICAL BEHAVIORS OF ZINC-RICH PAINT COATINGS IN 3.5% NaCl SOLUTION<br>Influence of the Pigment Shape on the Electrochemical Behaviors of Zinc—Rich Paint Coatings in 3.5% NaCl Solution
%A XIE Deming
%A TONG Shaoping
%A FENG Hai ZHANG Jianqing
%A <br>谢德明
%A 童少平
%A 冯 海
%A 张鉴清
%J 金属学报
%D 2005
%I 
%X Electrochemical impedance spectroscopy (EIS) was used to study the influences of the binder, pigment shape and the coating thickness on the corrosion prevention performance of the zinc-rich coatings (ZRC). There are two time constants for these coatings, the first one is attributed to the contact impedances between the different zinc particles and the second one is related to the charge transfer resistance of the Zn dissolution process. Furthermore, the EIS data of ZRC were interpreted according to equivalent circuit models. The corresponding parameters were derived to assess the coating deterioration with time and the performance between zinc dust primers and zinc flake primers were compared. The results showed that the zinc flake reduced the cathodic protection period of the ZRC and rapidly produced a little compact barrier.
%K zinc-rich paint
%K zinc flake
%K zinc dust
%K electrochemical impedance spectroscopy
%K cathodic protection
%K barrier effect<br>富Zn漆
%K 鳞片Zn粉
%K 球形Zn粉
%K 电化学阻抗谱
%K 阴极保护
%K 屏蔽作用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=1704B9220BB3C592&yid=2DD7160C83D0ACED&vid=2001E0D53B7B80EC&iid=DF92D298D3FF1E6E&sid=CA122BD5B2FF2137&eid=786A9BAE5CF9B9EE&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=17