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中国腐蚀与防护学报  1988, Vol. 8 Issue (4): 324-328    
  研究报告 本期目录 | 过刊浏览 |
非侵蚀性阴离子对薄膜铝孔蚀电位的影响
戴金华;张挺芳
广西大学化学系;华东师范大学
EFFECTS OF NON-AGGRESSIVE ANIONS ON CRITICAL PITTING POTENTIAL OF THIN-FILM ALUMINUM
Dai Jinhua and Zhang Tingfang (East China Normal University)
全文: PDF(401 KB)  
摘要: <正> 一、引言 孔蚀与许多因素有关。侵蚀离子的种类、浓度、溶液pH值及温度对点蚀都有影响。溶液中非侵蚀性阴离子(本文用Mp表示)的存在通常能减轻或抑制孔蚀。18-8不锈钢浸在室温3%NaNO_3+3%NaCl溶液里可25年不出现孔蚀。向含Cl~-的溶液中加入适量的NO_3~-或CrO_4~(2-)
Abstract:The effects of non-aggressive anions Mp (NO_3~(2-), CrO_4~(2-), SO_4~(2-))in sodium chloride solution on the critical pitting potential E_c of a thin aluminum film in integrated circuit were studied. It was found that these ions shifted E_c to more noble values and, up to a given concentration of chloride, E_C and [Mp], followed the relation: E_c=a+blog[Mp]. From the preceding relations for several concentration of chlorides, an equation log[Cl~-]=Alog [Mp] +B was obtained. The efficiency of inhibition decreased in the order: NO_3~->CrO_4~(2-)》SO_4~(2-). It was supposed that the cause of inhibition was the reversible competitive adsorption of non-aggressive anions with chloride ion, and the difference of inhibition efficiency depended mostly on the oxidation ability of these anions.
收稿日期: 1988-08-25     

引用本文:

戴金华;张挺芳. 非侵蚀性阴离子对薄膜铝孔蚀电位的影响[J]. 中国腐蚀与防护学报, 1988, 8(4): 324-328.
. EFFECTS OF NON-AGGRESSIVE ANIONS ON CRITICAL PITTING POTENTIAL OF THIN-FILM ALUMINUM. J Chin Soc Corr Pro, 1988, 8(4): 324-328.

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y1988/V8/I4/324

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