Paper Titles
The Study of the Electrochemical Graining Process in NaBO2- H3BO3 Solution and Grain Appearance on the Surface of Aluminum Alloy
p.236
Study on Electroless Ni-P Deposit on W-Cu Alloy and its Anti-Corrosion Mechanism
p.240
Sediment Co-Deposition of Nanostructured Ni-Al2O3 Composite Coatings
p.244
The Effect of Substrates on Properties of Anodic Coatings Formed on Mg and Mg Alloys
p.248
Anodic Alumina Oxide Template with Branched Structure Formed in Phosphoric Acid
p.252
Study of Corrosion Performance of Electroless Ni-P Coating with Molybdenum Disulfide Nanoparticles
p.256
Research of Microstructure and Properties of the 4Cr14Ni14W2Mo Steel with QPQ Salt-Bath Nitriding
p.260
Deposition of Amorphous Diamond Films on Different Substrates by Electrolysis of Methanol Solution
p.264
The Study on the Deposition Efficiency of Microarc Oxidation on Aluminum Alloy
p.268

Anodic Alumina Oxide Template with Branched Structure Formed in Phosphoric Acid

Article Preview

Abstract:

Anodic alumina oxide (AAO) templates with multi-branched structure were fabricated in a phosphoric acid. Atomic force microscope (AFM) was utilized to investigate the unstable growth of porous oxide film in initial stage. The morphologies of cross-section of AAO templates at different current density were also studied with FESEM. The results show that the acquired AAO templates are of multi-branched structure with large size. The diameter of pores on outer surface ranges from 150 to 220 nm, and the width of branches from 100-120 nm. This structure can be due to the unstable growth of AAO film in initial stage. Besides, the structure of AAO template is sensitive to the current density and the order degree decreases with the increase of current density: at 1.0A/dm2, most of tubes are not straight and some divided into two branches; at 2.0A/dm2, all tubes grow disorderly and form net-like structure. In this electrolyte, different types of structure of AAO templates can be acquired by adjusting current density, which may be used for the synthesis of new types of nanowires with improved mechanical properties.

You might also be interested in these eBooks
Surface Engineering View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 373-374)

Pages:

252-255

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.373-374.252

Citation:

Cite this paper

Online since:

March 2008

Authors:

Hui Wang, H.W. Wang, P. Zeng

Keywords:

Anodic Aluminum Oxide (AAO), Branched Structure, Unstable Growth

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] C.A. Huber, T.E. Huber, M. Sadoqi, J.A. Lubin, S. Manalis C.B. Prater: Science Vol. 263 (1994), p.800.

DOI: 10.1126/science.263.5148.800

Google Scholar

[2] D. Routkevitch, A.A. Tager, J. Haruyama, D. Almawlawi,M. Moskovits, J.M. Xu: IEEE Trans. Electron Devices Vol. 43(1996), p.1646.

DOI: 10.1109/16.536810

Google Scholar

[3] D.N. Davyddov, J. Haruyama, D. Routkevitch, B.W. Statt, D. Ellis, M. Moskovits, J.M. Xu: Phys. Rev . B Vol. 57(1998), p.13550.

Google Scholar

[4] S.L. Sung, S.H. Tsai, C.H. Tseng, F.K. Chiang, X.W. Liu, H.C. Shih: Appl. Phys. Lett. Vol. 74(1999), p.199.

Google Scholar

[5] J. Li, M. Moskovits, T.L. Haslett: Chem. Mater Vol. 10(1998), p. (1963).

Google Scholar

[6] Y.C. Sui, José M. Saniger: Materials Letters Vol. 48(2001), p.127.

Google Scholar

[7] Y. Yang, Z. Hu, Q. Wu, Y.N. Lü, X.Z. Wang, Y. Chen: Chemical Physics Letters Vol. 373(2003), p.580.

Google Scholar

[8] Z.H. Yuan, H, Huang, L. Liu, S.S. Fan: Chemical Physics Letters Vol. 345(2001), p.39.

Google Scholar

[9] Y.C. Sui, J.A., González-León, A. Bermúdez, J.M. Saniger: Carbon Vol. 9(2001), p.1709.

Google Scholar

[10] H. Wang, H.W. Wang: Transactions of Nonferrous Metals Society of China, Special Ⅱ Vol. 5(2004), pp.186-189.

Google Scholar