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Formation of the regularly arranged tubular pores during electrophoretic deposition

Cong Lin

Cong Lin

  • School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
  • Key Laboratory of Eco-materials Advanced Technology, Fujian Province UniversityFuzhou, China
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Lin, Cong
, 
Wuxin Li

Wuxin Li

School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
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Li, Wuxin
, 
Cengceng Fang

Cengceng Fang

School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
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Fang, Cengceng
, 
Qidan Wu

Qidan Wu

School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
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Wu, Qidan
, 
Hucheng Xie

Hucheng Xie

School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
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Xie, Hucheng
, 
Deliang Xu

Deliang Xu

School of Material Science and Engineering, Fuzhou UniversityFuzhou, China
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Xu, Deliang
 und 
Bizhi Xu

Bizhi Xu

Department of Materials Engineering, Zhicheng College, Fuzhou UniversityFuzhou, China
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Xu, Bizhi
  
10. März 2017
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Online veröffentlicht: 10. März 2017
Seitenbereich: 151 - 158
Eingereicht: 22. Juni 2016
Akzeptiert: 09. Dez. 2016
DOI: https://doi.org/10.1515/msp-2017-0013
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© 2017 Cong Lin, Wuxin Li, Cengceng Fang, Qidan Wu, Hucheng Xie, Deliang Xu, Bizhi Xu
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
XRD pattern of the deposited alumina powders and green body deposit.
XRD pattern of the deposited alumina powders and green body deposit.
Optical photographs of the tubular porous alumina ceramics prepared (a) without a mesh; and at various mesh sizes: (b) 0.1985 mm; (c) 0.3033 mm; (d) 0.4650 mm; (e) 0.6567 mm.
Optical photographs of the tubular porous alumina ceramics prepared (a) without a mesh; and at various mesh sizes: (b) 0.1985 mm; (c) 0.3033 mm; (d) 0.4650 mm; (e) 0.6567 mm.
Calculated electric field strength distribution on the gauze surface for different mesh sizes (a) no mesh; (b) 0.1985 mm; (c) 0.3033 mm; (d) 0.4650 mm; (e) 0.6567 mm.
Calculated electric field strength distribution on the gauze surface for different mesh sizes (a) no mesh; (b) 0.1985 mm; (c) 0.3033 mm; (d) 0.4650 mm; (e) 0.6567 mm.
Optical photographs of surfaces with a deposit from suspensions containing different types of acids: (a) propionic acid, pH = 4.13; (b) hydrochloric acid, pH = 4.12; (c) nitric acid, pH = 4.13; (d) hydrochloric acid, pH = 2.78. The insets represent (a) the pore diameter distribution determined from the relevant optical photographs; (b) the optical photograph of the opposite surface (close to the gauze) of the green body.
Optical photographs of surfaces with a deposit from suspensions containing different types of acids: (a) propionic acid, pH = 4.13; (b) hydrochloric acid, pH = 4.12; (c) nitric acid, pH = 4.13; (d) hydrochloric acid, pH = 2.78. The insets represent (a) the pore diameter distribution determined from the relevant optical photographs; (b) the optical photograph of the opposite surface (close to the gauze) of the green body.
The pH values variation during the deposition from suspensions with different acids.
The pH values variation during the deposition from suspensions with different acids.
Effect of the pH values and zeta potential on the deposited pore structures.
Effect of the pH values and zeta potential on the deposited pore structures.

The average values of pores size and the ratio of the pore size to the mesh size (Sp/Sm)_

Mesh size [mm]Average pore sizes [mm]Sp/Sm
0.65670.5834±0.11480.88933
0.46500.4536±0.11240.97548
0.30330.3110±0.08401.02539
0.19850.2483±0.12511.25088
without mesh0.2819±0.1015–

The differences of the electric field intensities between the mesh grids and holes in the gauzes with different mesh sizes_

MeshElectric field intensity [V/mm]
size [mm]Mesh grid/EgMesh hole/Eh∆E = Eg – Eh
0.65671283.7522.66761.04
0.4651201.8414.04787.76
0.30331191.6382.67808.93
0.19851080.2198.74881.46
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