Results 41 to 50 of about 89,611 (290)

Corrosion and Passivity of Copper in Basic Solutions of Acetate Ions

open access: yesChemical Engineering Transactions, 2014
The anodic oxidation of copper in sodium acetate aqueous solutions is studied in relation to the anodic films formed, in order to elucidate the role of acetates to the corrosion of copper. At open circuit conditions a cuprous oxide layer is formed having
A. Karantonis   +3 more
doaj   +1 more source

Shortcut biological nitrogen removal (SBNR) in microbial fuel cells (MFCs) [PDF]

open access: yes, 2017
Microbial Fuel Cells (MFCs) represent nowadays a promising technology for the treatment of industrial wastewater. In this work the Shortcut Nitritation/Denitritation process in H-type MFC was investigated.
Bavasso, Irene   +3 more
core   +1 more source

An electrochemical investigation of the formation of CoSx and its effect on the anodic dissolution of iron in ammoniacal-carbonate solutions [PDF]

open access: yes, 2013
It has been found that the co-presence of cobalt (II) and thiosulphate ions in ammoniacal-carbonate solutions promotes the passivation of iron, under conditions in which it would otherwise continue to dissolve anodically. Electrochemical experiments have
D'Aloya, A, Nikoloski, A.N.
core   +2 more sources

Impact of the type of anodic film formed and deposition time on the characteristics of porous anodic aluminium oxide films containing Ni metal [PDF]

open access: yes, 2011
Porous anodic films containing nickel were prepared by AC electro-deposition. The porosity of the films was controlled by using different working conditions (anodisation electrolyte, voltage, and time).
Arurault, Laurent   +3 more
core   +1 more source

Anodic oxide electrets

open access: yesElectronics Letters, 1969
Anodic oxide films on aluminium have been found to be electrets. The direction of the associated electric field implies a distribution of fixed negative charges within the oxide.
L.W. Davies, R.E. Collins
openaire   +1 more source

Alumite disc using anodic oxidation.

open access: yesJournal of the Magnetics Society of Japan, 1987
Details are given of a method of measuring perpendicular magnetic alumite discs using anodization with an additional new process called “pore widening” which is effective in controlling the coercive force. Electro-deposited fine iron needles were in a single crystalline state, and the perpendicular orientation of magnetization was confirmed.
T. Tsuya   +7 more
openaire   +2 more sources

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Oxidation Characteristic and Machining Performance of Reaction-Sintered Silicon Carbide Ceramic in Anodically Oxidation-Assisted Polishing

open access: yesInternational Journal of Electrochemical Science, 2016
A novel method for machining reaction-sintered silicon carbide (RS-SiC) ceramic using anodically oxidation-assisted polishing is proposed. Through anodic oxidation of RS-SiC, hardness of the oxidized sample can be reduced, and the soft oxide layer is ...
Guoliang Jiang   +5 more
doaj   +1 more source

Self-supported polypyrrole/polyvinylsulfate films: electrochemical synthesis, characterization, and sensing properties of their redox reactions [PDF]

open access: yes, 2017
Thick films of polypyrrole/polyvinylsulfate (PPy/PVS) blends were electrogenerated on stainless‐steel electrodes under potentiostatic conditions from aqueous solution.
Fernández Otero, Toribio   +4 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

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