%0 Journal Article
%T ENHANCED PASSIVITY OF GUILLOTINED ALUMINIUM IN Na_2SiO_3 SOLUTION BY GEL FORMATION
%A C Liu
%A GT Burstein
%A <br>G.T.Burstein
%J 金属学报(英文版)
%D 1997
%I 
%X The passivity of guillotined aluminium electrode is enhanced in alkaline electrolytes by SiO32-. It is proposed that the formation of a complete aluminosilicate gel is responsible for this phenomenon. Dissolution of the metal proceeds via the existing film and the dissolution product reacts with SiO_3~2- ions to form the gel. Under galvanostatic polarisation, significant amount of the gel is formed when the applied anodic i > 10mA cm-2. This gel layer can then be transformed into barrier-type of oxide film, thus contributing to the initial stage of the high voltage anodisation.
%K passivity
%K repassivation
%K guillotined aluminium
%K silicate
%K dissolution<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=7467019FE1753ED77866DA95B677470D&yid=5370399DC954B911&vid=F3090AE9B60B7ED1&iid=CA4FD0336C81A37A&sid=CA4FD0336C81A37A&eid=9CF7A0430CBB2DFD&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=19