(Invited) Preparation of Ordered Anodic Porous Alumina Through-Hole Membrane and Its Applications

2016 ◽  
Keyword(s):  
Porous Alumina ◽  
Anodic Porous Alumina ◽  
Through Hole

Fabrication and Characterization of Highly Ordered Porous Alumina Templates by a Two-Step Anodization Process

2013 ◽  
Vol 755 ◽  
pp. 75-81
Author(s):  
C.A. León-Patiño ◽  
E.A. Aguilar-Reyes ◽  
C. Ruiz-Aguilar
Keyword(s):  
Porous Alumina ◽  
Porous Membrane ◽  
Interpore Distance ◽  
Alumina Membranes ◽  
Single Side ◽  
Anodic Porous Alumina ◽  
20 Nm ◽  
Ordered Porous ◽  
Through Hole

Highly ordered through-hole anodic porous alumina membranes were fabricated by electrochemical oxidation of aluminum in a controlled two-step process. A teflon dispositive was used to ensure single side anodization. Under the most appropriate condition for the fabrication of ideally ordered anodic aluminum oxide (AAO), the voltage used was 15 V during 24 h in a 15 % w/v sulfuric acid solution. SEM, TEM and FESEM characterization shows that the as-fabricated AAO film has a defect-free array of straight parallel channels perpendicular to the surface. The thickness of the porous membrane is 20 microns, approximately. The ordered channels are formed in a honey comb arrange with a pore diameter in the range 20-30 nm, wall thickness of 10-20 nm, interpore distance of 40 nm, and high aspect ratio of 850. The pore density, quantified by image analysis, is 5.4×1010 pore/cm2; perfect ordering was maintained in the full depth of the membrane. Dimensions of this porous structure provide a convenient way to precision engineer the nanoscale morphology.

Fabrication of Through-Hole Diamond Membranes by Plasma Etching Using Anodic Porous Alumina Mask

2001 ◽  
Vol 4 (11) ◽  
pp. G101 ◽  
Author(s):  
Hideki Masuda ◽  
Kenji Yasui ◽  
Mitsuo Watanabe ◽  
Kazuyuki Nishio ◽  
Masashi Nakao ◽  
...  
Keyword(s):  
Plasma Etching ◽  
Porous Alumina ◽  
Anodic Porous Alumina ◽  
Through Hole

Polymer Through-Hole Membranes with High Aspect Ratios from Anodic Porous Alumina Templates

2006 ◽  
Vol 45 (No. 42) ◽  
pp. L1133-L1135 ◽  
Author(s):  
Takashi Yanagishita ◽  
Kazuyuki Nishio ◽  
Hideki Masuda
Keyword(s):  
Porous Alumina ◽  
Aspect Ratios ◽  
Anodic Porous Alumina ◽  
Through Hole

FORMATION MECHANISM OF POROUS STRUCTURE ON 316L STAINLESS STEEL BY ANODIZATION

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1047-1052 ◽  
Author(s):  
YUJIANG WANG ◽  
XINXIN MA ◽  
GUANGZE TANG
Keyword(s):  
Stainless Steel ◽  
Porous Structure ◽  
316L Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Porous Alumina ◽  
Aluminum Film ◽  
Dc Magnetron Sputtering ◽  
Anodic Porous Alumina ◽  
Through Hole

The micro-pores with size of 0.2 to 1.8 µm, which randomly distribute in a 316L stainless steel substrate, were fabricated by the transfer of the porous structure of anodic porous alumina. The mask anodic porous alumina was directly prepared by anodizing of aluminum film, which was deposited on 316L substrate by DC magnetron sputtering. The transfer of the porous structure of anodic alumina into the 316L substrate could be achieved without the additional through-hole treatment to the barrier layer. The localized priority dissolution on porous alumina is observed during the anodizing. And this process is considered to lead to the micro-pores formation on 316L substrate. In addition, the effect of anodizing time on the pores size and number on 316L substrate also was discussed.

scholarly journals Fabrication of Gold-Coated Ultra-Thin Anodic Porous Alumina Substrates for Augmented SERS

Materials ◽  
2016 ◽  
Vol 9 (6) ◽  
pp. 403 ◽  
Author(s):  
Chiara Toccafondi ◽  
Remo Proietti Zaccaria ◽  
Silvia Dante ◽  
Marco Salerno
Keyword(s):  
Porous Alumina ◽  
Anodic Porous Alumina
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