Role of polyethylene glycol in electrodeposition of zinc-chromium alloys

被引：35

作者：

Akiyama, T ^{[1
]}

Kobayashi, S

Ki, J

Ohgai, T

Fukushima, H

机构：

[1] Kyushu Sangyo Univ, Fac Engn, Dept Ind Chem, Fukuoka, Japan

[2] Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Fukuoka 812, Japan

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2000年 / 30卷 / 07期

关键词：

polyethylene glycol; sulfate baths; Zn-Cr alloys;

D O I：

10.1023/A:1004093531922

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The role of polyethylene glycol (PEG) as an additive in the electrodeposition of zinc-chromium alloys was investigated in sulfate baths containing trivalent chromium. PEG with high molecular weight enabled the codeposition of metallic chromium with zinc, while chromium(III) was present in the deposits obtained from the baths containing PEG with lower molecular weight as well as the PEG-free bath. The polarization curves for the alloy deposition revealed that PEG with high molecular weight polarized the deposition potential of zinc to the reduction potential of chromium to permit the codeposition of chromium with zinc.

引用

页码：817 / 822

页数：6

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