scholarly journals Investigation of the features of the porous morphology of anodic alumina films at the initial stage of anodization

2021 ◽  
Vol 2086 (1) ◽  
pp. 012025
Author(s):  
K V Chernyakova ◽  
E N Muratova ◽  
I A Vrublevsky ◽  
N V Lushpa
Keyword(s):  
Oxalic Acid ◽  
Surface Morphology ◽  
Porous Structure ◽  
Diameter Ratio ◽  
Anodic Alumina ◽  
Anodic Films ◽  
Sem Images ◽  
Alumina Films ◽  
Initial Stage ◽  
Porous Morphology

Abstract The work is devoted to the study of the porous structure formation of anodic alumina films at the initial stage of aluminium anodizing. SEM images of the surface morphology of the oxalic acid anodic films were analyzed. It was shown that at the initial stage, both major and minor pores are formed, the diameter ratio of which is about 1.16 and does not depend on the anodizing voltage. The results obtained indicate that the minor pores in the anodic films are located inside hexagonal cells composed of the major pores.

Effect of Joule Heating on Formation of Porous Structure of Thin Oxalic Acid Anodic Alumina Films

2018 ◽  
Vol 165 (7) ◽  
pp. E289-E293 ◽  
Author(s):  
Katsiaryna Chernyakova ◽  
Igor Vrublevsky ◽  
Vaclovas Klimas ◽  
Arunas Jagminas
Keyword(s):  
Oxalic Acid ◽  
Porous Structure ◽  
Joule Heating ◽  
Anodic Alumina ◽  
Alumina Films

The sorption of water molecules in the pores of anodic alumina films during aluminum anodizing in oxalic acid

2021 ◽  
Author(s):  
I. A. Vrublevsky ◽  
K. V. Chernyakova ◽  
E. N. Muratova ◽  
S. S. Nalimova ◽  
V. A. Moshnikov
Keyword(s):  
Oxalic Acid ◽  
Anodic Alumina ◽  
Water Molecules ◽  
Alumina Films ◽  
Aluminum Anodizing

Fabrication of highly ordered porous anodic alumina films in 0.75 M oxalic acid solution without using nanoimprinting

2019 ◽  
Vol 111 ◽  
pp. 24-33 ◽  
Author(s):  
Wenqiang Huang ◽  
Mengshi Yu ◽  
Shikai Cao ◽  
Lizhen Wu ◽  
Xiaoping Shen ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Oxalic Acid Solution ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Alumina Films ◽  
Ordered Porous

Formation of Anticorrosion Clusters on Anodic Alumina Films by Ni Ion Implantation

2006 ◽  
Vol 11-12 ◽  
pp. 89-94
Author(s):  
Lian Peng Tian ◽  
Xu Hui Zhao ◽  
Yu Zuo
Keyword(s):  
Corrosion Resistance ◽  
Ion Implantation ◽  
Anodic Alumina ◽  
Anodic Film ◽  
Xps Analysis ◽  
Nacl Solution ◽  
Anodic Films ◽  
High Corrosion Resistance ◽  
Alumina Films ◽  
Ions Implantation

Formation of clusters with high corrosion resistance on anodic films of Aluminum by Ni ions implantation was studied. Ni ions were implanted in anodic films of 1070 aluminum at an energy of 40 keV with dose of 5.0×1017 ions/cm2. XPS analysis reveals that Ni is present in the states of metallic Ni and NiO on the surface of the anodic film. Electrochemical results show that anodic films with Ni ions implantation provide relatively higher corrosion resistance in NaCl solution. The anti-corrosion clusters on the surface of anodic films should be the main reason for better corrosion resistance of the implanted samples.

scholarly journals Evidence for electrohydrodynamic convection as a source of spontaneous self-ordering in porous anodic alumina films

2016 ◽  
Vol 18 (9) ◽  
pp. 6946-6953 ◽  
Author(s):  
Mikhail Pashchanka ◽  
Jörg J. Schneider
Keyword(s):  
Oxalic Acid ◽  
Comparative Study ◽  
Electrolyte Concentration ◽  
Supporting Electrolyte ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Oxide Materials ◽  
Alumina Films ◽  
Porous Oxide

A comparative study of self-ordering behaviour of anodic alumina films fabricated in a series of diluted (down to 0.05 M) oxalic acid electrolytes allowed developing a relationship between the supporting electrolyte concentration and self-ordering voltages for the formation of porous oxide materials.

Sign in / Sign up

Export Citation Format

Share Document