Anodic electrodeposition of nanocrystalline coatings in the Mn-Co-O system

被引：39

作者：

Wei, Weifeng ^{[1
]}

Chen, Weixing ^{[1
]}

Ivey, Douglas G. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

CHEMISTRY OF MATERIALS | 2007年 / 19卷 / 11期

关键词：

D O I：

10.1021/cm070147q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocrystalline coatings in the Mn-Co-O system have been anodically electrodeposited on ferritic stainless steel substrates from aqueous solutions. A range of Co/Mn compositions (20-65 atom % Co) can be deposited by adjusting the deposition parameters, i.e., solution temperature, metal ion concentration and current density. Electron microscopy analysis shows that the coatings are composed of numerous oxide grains (less than 10 nm in diameter), which have a metastable face center cubic (FCC) structure. The crystal structure of as-deposited coatings is not sensitive to deposition parameters. The effects of deposition parameters on coating morphology have also been investigated. Crack formation in Mn-Co-O coatings depends on process conditions, but is not related to phase structure, grain size, or even coating composition.

引用

页码：2816 / 2822

页数：7

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