| HE Wen-ting,WANG Yu-chen,NAN Hai-yang,ZHU Li-qun.Preparation of Graphene Oxide Zinc Composite Coating on Sintered NbFeB by Electrodeposition[J],46(4):16-21 |
| Preparation of Graphene Oxide Zinc Composite Coating on Sintered NbFeB by Electrodeposition |
| Received:December 29, 2016 Revised:April 20, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.04.004 |
| KeyWord:NbFeB graphene electrodeposition corrosion resistance AC independence polarization curve |
| Author | Institution |
| HE Wen-ting |
Beihang University, Beijing , China |
| WANG Yu-chen |
Beihang University, Beijing , China |
| NAN Hai-yang |
Beihang University, Beijing , China |
| ZHU Li-qun |
Beihang University, Beijing , China |
|
| Hits: |
| Download times: |
| 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, cathode-current density and stirring rate had certain effects on surface morphology of the composite zinc coating. Meanwhile, 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 polarization 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. |
| Close |
|
|
|