School of Materials Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
Adv. Mater. Lett., 2013, 4 (12), pp 899-904
DOI: 10.5185/amlett.2013.4468
Publication Date (Web): Nov 24, 2013
Copyright © IAAM-VBRI Press
E-mail: azmirahmat@unimap.edu.my, aoalaba@yahoo.com
The basic concept of Gibbs standard state free energy predicts a favorable condition for both room and high temperature fabrication of nanoporous alumina in phosphoric acid electrolyte. The anodization of aluminum foil in acidic electrolytes is made possible by the well known process parameters that have been studied over the years. These parameters i.e. voltage, current density, type of electrolyte etc have been very effective when anodizing aluminum at freezing temperatures. When the operating temperature is raised above the freezing temperature, additional process parameters would be required to make the pore formation possible. The fabrication of the aluminum foil was carried out using phosphoric acid as the electrolyte source. The electrolyte pH was adjusted to 1, 3 and 5 in order to simulate different anodizing conditions. A potential of 50 V from a dc power supply was applied across the electrochemical cell, while a power regulating device with different power rating was attached to the electrochemical cell to provide the operating system with additional parameters that could influence the surface structure of the alumina. The micrographs obtained show that the propagation and growth of the pores at both room and high temperatures was made possible by the power regulating device attached to the cell.
Electrochemical cell, Gibbs free energy, nanoporous alumina, power regulator, temperature.
Celebrating 10th Years of Diamond Open Access Publishing in Advanced Materials
Cerebral Oxygenation Studies Through Near Infrared Spectroscopy: A Review
Analysis of Fine Sulfoaluminate Cement by Strength and Thermogravimetric Analysis
Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models
Quantitative Detect of Fatigue of Membrane of Erythrocyte in Uniform Shear Field
Ecofriendly-developed Polyacrylic Acid-coated Magnetic Nanoparticles as Catalysts in Photo-fenton Processes
Evaluation of Drug Interactions with Medications Prescribed to Ambulatory Patients with Metabolic Syndrome in Urban Area
Fiber-reinforced Cementitious Composite: Sensitivity Analysis and Parameter Identification
Evaluation of Drug Utilization Patterns Based on World Health Organization Drug use Indicators at Outpatients Clinics
Are Quantitatively Micro-machined Scaffolds Effective for Cell Technology?
Synthesis and Characterization of Gold Nanoparticles from Lobelia Nicotianifolia Leaf Extract and its Biological Activities
Advanced Oxidations of Tartrazine Azo-dye
Antifungal Activity of Salvia jordanii Against the Oral Thrush Caused by the Cosmopolitan Yeast Candida albicans among Elderly Diabetic Type 2 patients
Advanced Materials Congress Celebrating 10th Years of Establishment
Secure Management of Networked Batteries for Building Integrated Photovoltaics (BIPV) Systems
The Cause of 100-year Low Carbonated Concrete of the Bridge
Organic Montmorillonite Intercalated Nano-composites Prevent Post-Surgical Associated Infections
Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends
Preparation and Characterization of Nickel Ferrite Nanoparticles via Sol-gel Method
Nitrogen-doped Diamond Nanowire Gas Sensor for the Detection of Methane
Manufacture of Functional Open-cell Al Foams with Recycled Al Scraps using NaCl Ball Space Holder
Vilsmeier-Haack Transformations under Non Classical Conditions
New Application of Highly Vesicular Basalt from Jabel Isbil Volcano (Dhamar-Rada'a Volcanic Field), Yemen
An Assessment of Tribological Characteristics under different Operating Condition
Functional Bi Coatings as A Perspective Material for Radiation Shields Production against Electron Radiation
Effects of Silica Modified NiFe2O4 on the Dielectric and Electrical Properties of NiFe2O4 filled Poly (methyl methacrylate) Composites
_1572929082.jpg)
Copyright ©2010-2020 VBRI Press
Full Article