Fabrication of Porous Anodic Alumina by Single-Step Anodization: Influence of the Molar Concentration and effect of the Chemical Etching

2019 ◽  
Vol 39 (1) ◽  
pp. 401-408
Author(s):  
Rina H. Bustamante ◽  
Daniel Raimundo ◽  
Hipólito Alan Champi ◽  
H. Y. Kim ◽  
Walter J. Salcedo
Keyword(s):  
Chemical Etching ◽  
Single Step ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Molar Concentration

Effects of an Anodizing Solution and Chemical Etching on the Shape of Porous Anodic Alumina

2016 ◽  
Vol 66 (9) ◽  
pp. 1072-1076
Author(s):  
Jin Woo KIM ◽  
Gi Ppeum CHOI ◽  
Sam Yeon CHO ◽  
Sang Don BU*
Keyword(s):  
Chemical Etching ◽  
Anodic Alumina ◽  
Porous Anodic Alumina

scholarly journals Effect of Manganese Content on the Fabrication of Porous Anodic Alumina

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
C. H. Voon ◽  
M. N. Derman ◽  
U. Hashim
Keyword(s):  
Pore Diameter ◽  
Chromic Acid ◽  
Cell Structure ◽  
Manganese Content ◽  
Single Step ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Secondary Phases ◽  
Interpore Distance ◽  
Ordered Porous

The influence of manganese content on the formation of well-ordered porous anodic alumina was studied. Porous anodic alumina has been produced on aluminium substrate of different manganese content by single-step anodizing at 50 V in 0.3 M oxalic acid at 15°C for 60 minutes. The well-ordered pore and cell structure was revealed by subjecting the porous anodic alumina to oxide dissolution treatment in a mixture of chromic acid and phosphoric acid. It was found that the manganese content above 1 wt% impaired the regularity of the cell and pore structure significantly, which can be attributed to the presence of secondary phases in the starting material with manganese content above 1 wt%. The pore diameter and interpore distance decreased with the addition of manganese into the substrates. The time variation of current density and the thickness of porous anodic alumina also decreased as a function of the manganese content in the substrates.

scholarly journals Effect of Temperature of Oxalic Acid on the Fabrication of Porous Anodic Alumina from Al-Mn Alloys

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
C. H. Voon ◽  
M. N. Derman ◽  
U. Hashim ◽  
K. R. Ahmad ◽  
K. L. Foo
Keyword(s):  
Oxalic Acid ◽  
Pore Wall ◽  
Single Step ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Effect Of Temperature ◽  
Interpore Distance ◽  
Rate Of Increase ◽  
Steady State Current ◽  
Increasing Temperature

The influence of temperature of oxalic acid on the formation of well-ordered porous anodic alumina on Al-0.5 wt% Mn alloys was studied. Porous anodic alumina has been produced on Al-0.5 wt% Mn substrate by single-step anodising at 50 V in 0.5 M oxalic acid at temperature ranged from 5°C to 25°C for 60 minutes. The steady-state current density increased accordingly with the temperature of oxalic acid. Hexagonal pore arrangement was formed on porous anodic alumina that was formed in oxalic acid of 5, 10 and 15°C while disordered porous anodic alumina was formed in oxalic acid of 20 and 25°C. The temperature of oxalic acid did not affect the pore diameter and interpore distance of porous anodic alumina. Both rate of increase of thickness and oxide mass increased steadily with increasing temperature of oxalic acid, but the current efficiency decreased as the temperature of oxalic acid increased due to enhanced oxide dissolution from pore wall.

Novel structure formation at the bottom surface of porous anodic alumina fabricated by single step anodization process

Micron ◽  
2010 ◽  
Vol 41 (6) ◽  
pp. 560-564 ◽  
Author(s):  
Ghafar Ali ◽  
Maqsood Ahmad ◽  
Javed Iqbal Akhter ◽  
Muhammad Maqbool ◽  
Sung Oh Cho
Keyword(s):  
Structure Formation ◽  
Single Step ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Bottom Surface ◽  
Novel Structure ◽  
Anodization Process

Synthesis and Photoluminescence of Mesoporous CeO2Nanofibers Using Porous Anodic Alumina as Template

2012 ◽  
Vol 29 (6) ◽  
pp. 658
Author(s):  
Renjiang LV ◽  
Xuegong HOU ◽  
Yingjie LI ◽  
Lei DENG ◽  
Huimin DING ◽  
...  
Keyword(s):  
Anodic Alumina ◽  
Porous Anodic Alumina

Label-Free Detection of Telomerase Activity in Urine Using Telomerase-Responsive Porous Anodic Alumina Nanochannels

2016 ◽  
Vol 88 (16) ◽  
pp. 8107-8114 ◽  
Author(s):  
Xu Liu ◽  
Min Wei ◽  
Yuanjian Liu ◽  
Bingjing Lv ◽  
Wei Wei ◽  
...  
Keyword(s):  
Telomerase Activity ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Label Free ◽  
Label Free Detection

Surface morphology control on porous anodic alumina in phosphoric acid

2010 ◽  
Vol 518 (14) ◽  
pp. 3797-3800 ◽  
Author(s):  
Rong Zhang ◽  
Kaiming Jiang ◽  
Guqiao Ding
Keyword(s):  
Surface Morphology ◽  
Phosphoric Acid ◽  
Morphology Control ◽  
Anodic Alumina ◽  
Porous Anodic Alumina

An infrared spectroscopic study of sodium silicate adsorption on porous anodic alumina

2013 ◽  
Vol 45 (7) ◽  
pp. 1098-1104 ◽  
Author(s):  
R. Gaggiano ◽  
I. De Graeve ◽  
J.M.C. Mol ◽  
K. Verbeken ◽  
L.A.I. Kestens ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Sodium Silicate ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Infrared Spectroscopic Study ◽  
Infrared Spectroscopic
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