Because of an unfortunate mistake by authors,the Project(5227010679)of Foundation item was wrong.The corrected Project is shown as follows:Project(52271073).
The process of preparing anodic oxide film containing active sites and electroless nickel plating on highly active rare earth magnesium alloy was developed.The formation mechanism of electroless nickel plating on acti...The process of preparing anodic oxide film containing active sites and electroless nickel plating on highly active rare earth magnesium alloy was developed.The formation mechanism of electroless nickel plating on active anodic oxide film and the structure and properties of the composite coating were studied by several surface and electrochemical techniques.The results showed that Ag nanograins with an average size of 10 nm were embedded into the anodic oxide film with pores of 0.1−2μm.Ag nanoparticles provided a catalytic site for the deposition of Ni-B alloy,and the Ni crystal nucleus was first grown in horizontal mode and then in cylindrical mode.The corrosion potential of the composite coating increased by 1.37 V and the corrosion current reduced two orders of magnitude due to the subsequent deposition of Ni-P alloy.The high corrosion resistance was attributed to the misaligning of these micro defects in the three different layers and the amorphous structure of the Ni-P alloy in the outer layer.These findings provide a new idea for electroless nickel plating on anodic oxide film.展开更多
The structure,morphology and composition of the composite coating of Ni P PTFE were analyzed by using the methods of XRD,SEM,AES and XPS.The results showed the structure of the Ni P PTFE composite coating was amorphou...The structure,morphology and composition of the composite coating of Ni P PTFE were analyzed by using the methods of XRD,SEM,AES and XPS.The results showed the structure of the Ni P PTFE composite coating was amorphous,the composite deposite was very smooth,uniform and good black in appearance.The coating was approximately 3.32μm thick and had strong corrosion resistance.The relative atomic percent contents of the coating were Ni 53.01,P 29.38,C 1.51,F 2.88,O 0.75 and Fe 10.08%.展开更多
文摘Because of an unfortunate mistake by authors,the Project(5227010679)of Foundation item was wrong.The corrected Project is shown as follows:Project(52271073).
基金Project(5227010679)supported by the National Natural Science Foundation of China。
文摘The process of preparing anodic oxide film containing active sites and electroless nickel plating on highly active rare earth magnesium alloy was developed.The formation mechanism of electroless nickel plating on active anodic oxide film and the structure and properties of the composite coating were studied by several surface and electrochemical techniques.The results showed that Ag nanograins with an average size of 10 nm were embedded into the anodic oxide film with pores of 0.1−2μm.Ag nanoparticles provided a catalytic site for the deposition of Ni-B alloy,and the Ni crystal nucleus was first grown in horizontal mode and then in cylindrical mode.The corrosion potential of the composite coating increased by 1.37 V and the corrosion current reduced two orders of magnitude due to the subsequent deposition of Ni-P alloy.The high corrosion resistance was attributed to the misaligning of these micro defects in the three different layers and the amorphous structure of the Ni-P alloy in the outer layer.These findings provide a new idea for electroless nickel plating on anodic oxide film.
文摘The structure,morphology and composition of the composite coating of Ni P PTFE were analyzed by using the methods of XRD,SEM,AES and XPS.The results showed the structure of the Ni P PTFE composite coating was amorphous,the composite deposite was very smooth,uniform and good black in appearance.The coating was approximately 3.32μm thick and had strong corrosion resistance.The relative atomic percent contents of the coating were Ni 53.01,P 29.38,C 1.51,F 2.88,O 0.75 and Fe 10.08%.
