电沉积微纳米晶铁的形貌与生长机理研究  

Growth Mechanism and Morphology of Electrodeposited Micro-Nanocrystalline Iron

作　　者：章桥新[1] 张佳明[2] 杨丽宁[2] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《电化学》2007年第3期253-257,共5页Journal of Electrochemistry

基　　金：国防预研项目(51447020105QT6903)资助

摘　　要：研究电流密度、温度、浓度和表面活性剂对电沉积微纳米晶铁电沉积过程的影响,SEM和XRD测试结果表明:于小电流密度、低温和高浓度下电流积,可得到片状α-Fe,而在大电流密度、高温和低浓度下电沉积则得到枝晶-αFe,表面活性剂对产物的形貌和组成没有影响.并讨论电沉积过程中产物的形成机制.Effects of current density, reaction temperature, electrolyte concentration and surfactant on the electrochemical deposition of micro-nanocrystalline iron were studied. Morphologies and structures of the samples were characterized by SEM and XRD, the results showed that the electrodeposits is slice α-Fe under little current and the density, lower temperature and higher concentration, and the dentritic α-Fe is under opposite conditions, but the influence from surfactant is unconsicously. Moreover, the growth mechanism of the electrodeposits was also analysed here.

关 键 词：电沉积 微晶 Α-FE 生长机理 

分 类 号：O782[理学—晶体学] O614.811