Results 41 to 50 of about 16,391 (270)

Photonic stop bands in quasi-random nanoporous anodic alumina structures

open access: yes, 2011
The existence of photonic stop bands in the self-assembled arrangement of pores in porous anodic alumina structures is investigated by means of rigorous 2D finite- difference time-domain calculations.
Boriskina   +23 more
core   +1 more source

Mechanical behavior of black anodic films on 7175 aluminium alloy for space applications [PDF]

open access: yes, 2009
Because of their low outgassing and their thermo-optical properties, black anodized aluminium parts are often used near optical instruments to manage thermal control in space applications.
Arurault, Laurent   +5 more
core   +6 more sources

Optical and structural properties of sol-gel derived materials embedded in porous anodic alumina [PDF]

open access: yes, 2005
Structure composing a xerogel, doped with lanthanide ions (erbium, terbium and europium), embedded in porous anodic alumina (PAA) have been fabricated and their optical and electrical characterisitics have been studied.
Aegerter, Michel A.   +11 more
core   +2 more sources

Chronopotentiometry at platinum electrode in KF-NaF-AlF3-Al2O3 melt [PDF]

open access: yes, 2015
Some features of the mechanism of the anode process on platinum in KF–NaF–AlF3–Al2O3 melt at 750–780 °C depending on the of anodic current density (0.5 mA/cm2 to 2.0 A/cm2) and anodic pulse duration have been studied using chronopotentiometry method. In
Khramov, A. P.   +4 more
core   +2 more sources

Confinement Effects on the Crystalline Features of Poly(9,9-dioctylfluorene) [PDF]

open access: yes, 2016
Typical device architectures in polymer-based optoelectronic devices, such as field effect transistors organic light emitting diodes and photovoltaic cells include sub-100 nm semiconducting polymer thin-film active layers, whose microstructure is likely ...
Li, Ruipeng   +5 more
core   +2 more sources

Ultraviolet photoluminescence of porous anodic alumina films

open access: yesChinese Science Bulletin, 2003
Photoluminescence (PL) properties of porous anodic alumina (PAA) films prepared by using electrochemical anodization technique in a mixed solution of oxalic and sulfuric acid have been investigated. The PAA films have an intensive ultraviolet PL emission around 350 nm, of which a possible PL mechanism has been proposed.
Tao Gao, Guowen Meng, Lide Zhang
openaire   +2 more sources

Synthesis and Characterization of Silver and Gold Nano-Structures on Chitosan-Porous Anodic Alumina Nano-Composite [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
This study was designed to probe the fabrication of unique silver and gold nano-structures engaging a self-designed chitosan-porous anodic alumina nano-composite as a template.
Somia Qayyum   +9 more
doaj  

Fabrication and Magnetic Functionalization of Cylindrical Porous Anodic Alumina

open access: yesSmall, 2007
The fabrication and magnetic functionalization of cylindrical porous anodic alumna (CPAA) was examined. The process are engineered onto aluminum wires with milli- and micrometric diameter so that the grown nanopores are disposed in a radial configuration.
Sanz González, Ruy   +4 more
openaire   +3 more sources

Influence of the anodizing process variables on the acidic properties of anodic alumina films [PDF]

open access: yes, 2017
In the present work, the effect of the different variables involved in the process of aluminum anodizing on the total surface acidity of the samples obtained was studied.
Boldrini, Diego Emmanuel   +2 more
core   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

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