表面技术2017，Vol.46Issue(4)：16-21,6.DOI:10.16490/j.cnki.issn.1001-3660.2017.04.004
烧结钕铁硼表面复合电沉积氧化石墨烯镀锌层
Preparation of Graphene Oxide Zinc Composite Coating on Sintered NbFeB by Electrodeposition
摘要
Abstract
NbFeB is a kind of widely used magnetic material, since porous structure is easily corroded, corresponding coatings shall be prepared on the surface for protection. Nano-sized graphene oxide (GO) prepared in advance was mixed with galvanizing solution to prepare zinc coating and Zn-GO composite coating on NbFeB surface. Concentration, ca-thode-current density and stirring rate had certain effects on surface morphology of the composite zinc coating. Mean-while, growth orientation of the coating could be altered by the graphene oxide (GO) of certain concentration, preferential growth crystal face transformed from (100) to (002). Morphology of the coating transformed from bulged grain tightly accumulated by pure zinc into Zn/rGO nanosheet-like morphology. According to AC independence and potential polariza-tion curve, corrosion resistance of Zn/rGO nano composite coating increased significantly after the Zn coating and Zn/rGO composite coating were soaked in 3.5%NaCl solution. Compared with single Zn coating, the corrosion resistance of the Zn/GO composite coating increases obviously.关键词
钕铁硼/石墨烯/电沉积/耐蚀性/交流阻抗/极化曲线Key words
NbFeB/graphene/electrodeposition/corrosion resistance/AC independence/polarization curve分类
化学化工引用本文复制引用
何文婷,王雨晨,南海洋,朱立群..烧结钕铁硼表面复合电沉积氧化石墨烯镀锌层[J].表面技术,2017,46(4):16-21,6.基金项目
国家自然科学基金资助项目(U1637204) Supported by National Natural Science Foundation of China (U1637204) （U1637204）
