Effect of Al2O3-ZrO2 Composite Oxide Thickness on Electrical Properties of Etched Al Foil

Fei Chen; Sang-Shik Park

doi:10.3740/MRSK.2016.26.3.160

All Issue

2016 Vol.26, Issue 3 Preview Page

Effect of Al₂O₃-ZrO₂ Composite Oxide Thickness on Electrical Properties of Etched Al Foil

March 2016. pp. 160-165

PDF XML

Abstract

To increase the capacitance of an Al electrolytic capacitor, the anodic oxide film, Al₂O₃, was partly replaced by an Al₂O₃-ZrO₂ (Al-Zr) composite film prepared by the vacuum infiltration method and anodization. The microstructure and composition of the prepared samples were investigated by scanning electron microscopy and transmission electron microscopy. The coated and anodized samples showed multi-layer structures, which consisted of an inner Al hydrate layer, a middle Al-Zr composite layer, and an outer Al₂O₃ layer. The thickness of the coating layer could go up to 220 nm when the etched Al foil was coated 8 times. The electrical properties of the samples, such as specific capacitance, leakage current, and withstanding voltages, were also characterized after anodization at 100 V and 600 V. The capacitances of samples with ZrO₂ coating were 36.3% and 27.5% higher than those of samples without ZrO₂ coating when anodized at 100 V and 600 V, respectively.

Keywords

sol-gel

multi-layer film

anodization

capacitance

anodic oxide film

References

R S Alwitt, H Uchi, T R Beck and R C Alkire, J. Electrochem. Soc, 131; 13 (1984)

10.1149/1.2115495

H Takahashi and M Nagayama, Electrochim. Acta, 23; 279 (1978)

10.1016/0013-4686(78)85058-0

C T Chen and G A Hutchins, J. Electrochem. Soc, 132; 1567 (1985)

10.1149/1.2114166

R L Chiu, P H Chang and C H Tung, Thin Solid Films, 260; 47 (1995)

10.1016/0040-6090(94)06491-1

J K Chang, C M Lin, C M Liao, C H Chen and W T Tsai, J. Electrochem. Soc, 151; B188 (2004)

10.1149/1.1646140

C L Ban, Y D He and X Shao, Trans. Nonferrous Met. Soc. China, 21; 133 (2011)

10.1016/S1003-6326(11)60689-4

S S Park and B T Lee, J. Electroceram, 13; 111 (2004)

10.1007/s10832-004-5085-z

M Sunada, H Takahashi, T Kikuchi, M Sakairi and S Hirai, J. Solid State Electrochem, 11; 1375 (2007)

10.1007/s10008-007-0316-2

Y H Wang, J Yang and J Z Wang, Ceram. Int, 34; 1285 (2008)

10.1016/j.ceramint.2007.03.004

X Du and Y Xu, Surf. Coat. Technol, 202; 1923 (2008)

10.1016/j.surfcoat.2007.08.020

J Liu, Q Guo, M Yu, S Li and L Yao, ECS J. Solid state Sci. Technol, 2; N55 (2013)

F Chen and S S Park, ECS J. Solid state Sci. Technol, 4; P293 (2015)

H Uchi, T Kanno and R S Alwitt, J. Electrochem. Soc, 148; B17 (2001)

10.1149/1.1344528

R S Alwitt, C K Dyer and B Noble, J. Electrochem. Soc, 129; 711 (1982)

10.1149/1.2123956

Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 26
No :3
Pages :160-165
Received Date : 2016-02-03
Revised Date : 2016-02-25
Accepted Date : 2016-02-25
DOI :https://doi.org/10.3740/MRSK.2016.26.3.160

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

All Issue