Optimization on Self-Ordering Process of Electropolishing Surface on High-Purity Aluminum

Di Ma; Shu Bai Li; Xiu Ying Hu; Xing Hong Zhao; Xu Hong Chen

doi:10.4028/www.scientific.net/AMR.1053.56

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1053Optimization on Self-Ordering Process of...

Optimization on Self-Ordering Process of Electropolishing Surface on High-Purity Aluminum

Abstract:

The electropolishing behavior of high-purity aluminum in perchloric acid ethanol electrolytes is studied by the electrochemical methods. The morphologies of electropolished surface are examined by SEM. The results of anodic polarization shows that the limiting current density was decreased with the 1,2-propylene glycol and perchloric acid volume ratio increasing and the temperature decreasing. The results of SEM show that A salt film with porous pores on the electropolishing surface was formed on high-purity aluminum in the mixed solution of 1, 2 propylene glycol and perchloric acid at the volume ratio of 4:1 and 6:1, porosity of film increases from 12.3 % to18.4%, and the pore diameter of film increases from 19 nm to 23 nm with the current density increased from 120 mAcm^-2 to 140 mAcm^-2.

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Periodical:

Advanced Materials Research (Volume 1053)

Pages:

56-60

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1053.56

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Online since:

October 2014

Authors:

Di Ma*, Shu Bai Li, Xiu Ying Hu, Xing Hong Zhao, Xu Hong Chen

Keywords:

Anodic Polarization Curve, Constant Current-Density, Electrochemical Polishing, Scanning Electron Microscope (SEM)

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References

[1] Yuzhakov V V, Takhistov P V, Miller A E, et al, Pattern selection during electropolishing due to double-layer effects, Chaos. 9 (1999) 62-77.

DOI: 10.1063/1.166380

Google Scholar

[2] Yuzhakov V V, Chang H C, Miller A E, Pattern formation during electropolishing, Phys Rev B: Condens Matter. 56 (1997) 12608-12624.

DOI: 10.1103/physrevb.56.12608

Google Scholar

[3] Bandyopadhyay S, Miller A E, Chang H C, et al, Electrochemically assembled quasi-periodic quantum dot arrays, Nanotechnology. 7 (1996) 360-371.

DOI: 10.1088/0957-4484/7/4/010

Google Scholar

[4] Zhao G Y, Xu C L, Guo D J, et al, Patterning polycrystalline aluminum by electropolishing at low voltages, Journal of Solid State Electrochemistry. 10 (2006) 266-269.

DOI: 10.1007/s10008-005-0681-7

Google Scholar

[5] Zhao G Y, Xu C L, Guo D J, et al, Patterning polycrystalline aluminum by electropolishing at low voltages, J Solid State Electrochem 10 (2006) 266-269.

DOI: 10.1007/s10008-005-0681-7

Google Scholar

[6] Di M, Shuying L, Chenghao L, Electropolishing of high-purity aluminium in perchloric acid and ethanol solutions, Corros Sci 51 (2009) 713-718.

DOI: 10.1016/j.corsci.2009.01.030

Google Scholar