Surface characterization of nanoporous aluminium oxide films synthesized by single-step DC and AC anodization

被引：14

作者：

Chelliah, Nagaraj M. ^{[1
]}

Saxena, Alaukik ^{[1
]}

Sharma, Khushdeep ^{[1
,2
]}

Singh, Harpreet ^{[1
]}

Surappa, M. K. ^{[3
]}

机构：

[1] Indian Inst Technol Ropar, Dept Mech Engn, Rupnagar 140001, Punjab, India

[2] Friedrich Alexander Univ Erlangen, Dept Adv & Mat Proc, D-91054 Nurnberg, Germany

[3] Indian Inst Sci, Dept Mat Engn, Bengaluru 560012, Karnataka, India

来源：

SURFACES AND INTERFACES | 2017年 / 7卷

关键词：

Anodization; Aluminum oxide; Fast Fourier transform; Surface morphology; Atomic force microscopy (AFM); ANODIC POROUS ALUMINA; PORE ARRAYS; GROWTH; ARRANGEMENT; ELECTROLYTE; TEMPERATURE; ABSORPTION; MEMBRANE;

D O I：

10.1016/j.surfin.2017.04.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanoporous alumina films were synthesized on commercial grade aluminum substrates using single-step anodization technique in 0.3M phosphoric acid at room temperature. Effect of applied voltage (100-130 V) on surface characteristics of anodized aluminum oxide (AAO) film was investigated. Surface topography parameters and regularity ratio of nanopores arrangement were characterized using power spectral density (PSD) and fast Fourier transform (FFT) profiles. While DC anodization suffered from filament-like cavities at 130 V owing to thermally enhanced dissolution of oxide, AC anodization produced localized flower-like morphology for all the applied voltages. The intensity of localized flower-like morphology was increased monotonically with applied voltage. Evolution of flower-like morphology was discussed on the basis of Pashchanka-Schneider model.

引用

页码：139 / 145

页数：7

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