Results 31 to 40 of about 329,958 (322)

Enhanced physical properties of the anodic TiO2 nanotubes via proper anodization time

open access: yesJournal of Theoretical and Applied Physics, 2018
Vertically aligned titanium dioxide (TiO2) nanotubes were synthesized by electrochemical anodic oxidation in an electrolyte solution containing 0.45 wt% ammonium fluoride (NH4F) and 2 vol% deionized water at constant potential (70 V) for various ...
Zahra Jedi-soltanabadi   +2 more
doaj   +1 more source

AN INVESTIGATION OF THE POROUS SILICON OPTICAL-ABSORPTION POWER-LAW NEAR THE BAND-EDGE [PDF]

open access: yes, 2002
A theoretical investigation of the absorption coefficient of p-type doped porous silicon near the band edge is presented. We assume that the absorption coefficient is constructed by taking an average over a distribution (in terms of band gap) of ...
CHOY, TC, DERLET, PM, STONEHAM, AM
core   +1 more source

Nanopatterning of steel by one-step anodization for anti-adhesion of bacteria

open access: yesScientific Reports, 2017
Surface nanopatterning of metals has been an effective technique for improved performance and functionalization. However, it is of great challenge to fabricate nanostructure on carbon steels despite their extensive use and urgent needs to maintain the ...
Shiqiang Chen, Yuan Li, Y. F. Cheng
semanticscholar   +1 more source

Chemical analysis of a single basic cell of porous anodic aluminium oxide templates [PDF]

open access: yes, 2010
We prepared anodic aluminium oxide (AAO) templates with “honeycomb” geometry, i.e. hexagonally ordered circular pores. The structures were extensively studied and characterized by EPMA coupled with FEG-SEM and FEG-TEM coupled with EDX at meso and ...
Arurault, Laurent   +2 more
core   +2 more sources

Structural comparison of anodic nanoporous-titania fabricated from single-step and three-step of anodization using two paralleled-electrodes anodizing cell

open access: yesKKU Engineering Journal, 2016
Anodization of Ti sheet in the ethylene glycol electrolyte containing 0.38wt% NH4F with the addition of 1.79wt% H2O at room temperature was studied. Applied potential of 10-60 V and anodizing time of 1-3 h were conducted by single-step and three-step of ...
Mallika Thabuot, Chaiyaput Kruehong
doaj   +1 more source

Aligned metal oxide nanotube arrays: key-aspects of anodic TiO2 nanotube formation and properties

open access: yes, 2016
Over the past ten years, self-aligned TiO2 nanotubes have attracted tremendous scientific and technological interest due to their anticipated impact on energy conversion, environment remediation and biocompatibility.
Nguyen, Nhat Truong   +3 more
core   +1 more source

Anodization Time Effect on Silver Particles Deposition on Anodic Oxide Coating over Al Produced by Plasma Electrolytic Oxidation

open access: yesPlasma, 2023
In this study, 6061 Al alloy was galvanostatically anodized under the Plasma Electrolytic Oxidation (PEO) condition. A factorial design of 22 was carried out using two variables (anodization time and presence of silver in the electrolyte) on two levels ...
Francisco Trivinho-Strixino   +5 more
doaj   +1 more source

Role of microstructure in porous silicon gas sensors for NO$_2$

open access: yes, 2003
Electrical conductivity of porous silicon fabricated form heavily doped p-type silicon is very sensitive to NO$_2$, even at concentrations below 100 ppb. However, sensitivity strongly depends on the porous microstructure.
Bettotti, Paolo   +6 more
core   +1 more source

Thin Film Superconducting Devices [PDF]

open access: yes, 1973
Techniques have been developed with which it is possible to fabricate superconducting thin film structures (“bridges”) which show Josephson-like phenomena, with a wide variety of electrical and superconducting parameters.
Mercereau, J. E., Notarys, H. A.
core   +1 more source

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

open access: yes, 2017
Three steps anodization process is used to synthesize highly ordered and uniform multilayered titanium oxide (TiO2) nanotubes and effect of different anodization voltages are studied on their physical properties such as structural, morphological and ...
T. Hoseinzadeh   +4 more
semanticscholar   +1 more source

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