Pembentukan cekung berkualiti tinggi menggunakan tempoh penganodan yang singkat bagi penghasilan AAO

Translated title of the contribution: Formation of high quality concave using short anodization duration for fabrication of AAO

N. U. Saidin, Mohammad Hafizuddin Jumali, K. Y. Kok, I. K. Ng

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The quality of the AAO membrane prepared using two-step anodization technique is strongly influenced by the pre-textured concave indented during the first-step of anodization. This work was conducted to determine the optimum duration of anodization to produce a high quality of concaves. The anodization process was conducted using 0.3 M H2C2O4 solution as an electrolyte at 40 V and 18°C applied voltage and temperature, respectively. Anodizing process was performed up to 6 h. The changes of the current during anodization process was recorded. After removal of the resulting oxide layer, the concaves formed were studied using FESEM. FESEM micrograph confirmed the formation of a uniform hexagonal concaves. Beside improving the uniformity, the extension of anodizing duration formed a well-defined arrangement of concaves with minimum defects. This work found that the optimum period to obtain a uniform and perfect concaves is between 4 and 6 h. This is because the extension of anodizing period caused the wall to collapse and creating larger, irregular pores. In addition, the underlying mechanism for concave formation was described in detail.

Original languageMalay
Pages (from-to)1787-1794
Number of pages8
JournalSains Malaysiana
Volume45
Issue number12
Publication statusPublished - 1 Dec 2016

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Anodic oxidation
Fabrication
Electrolytes
Membranes
Defects
Oxides
Electric potential
Temperature

ASJC Scopus subject areas

  • General

Cite this

Pembentukan cekung berkualiti tinggi menggunakan tempoh penganodan yang singkat bagi penghasilan AAO. / Saidin, N. U.; Jumali, Mohammad Hafizuddin; Kok, K. Y.; Ng, I. K.

In: Sains Malaysiana, Vol. 45, No. 12, 01.12.2016, p. 1787-1794.

Research output: Contribution to journalArticle

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