Results 91 to 100 of about 98,280 (304)

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

open access: yesAdvanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

The Fields of Moduli for Polarized Abelian Varieties and for Curves [PDF]

open access: yesNagoya Mathematical Journal, 1972
In the study of moduli of polarized abelian varieties and of curves as well as in the theory of complex multiplications, the notion of fields of moduli for structures plays an essential role. This notion was first introduced by Matsusaka [7] for polarized varieties with some pleasing properties and later was given a more comprehensible treatment by ...
openaire   +3 more sources

Relating the N-shaped polarization curve of a PEM fuel cell to local oxygen starvation and hydrogen evolution [PDF]

open access: yes, 2014
S.366-370In this work, we use the polarization curve of a polymer electrolyte membrane (PEM) fuel cell to investigate the inter-connected transport processes in its electrodes. The investigation is based on a segmented (7 by 7) PEM fuel cell.
Zamel, Nada   +4 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Study Of Rust Preventive Characteristics Of Rust Preventive Oil From Polarization Curve Measurement

open access: yesArchives of Metallurgy and Materials, 2015
Fe-Cu-C sintered steels are widely used as powder materials, because of its small volumetric shrinkage. However, Cu, which acts as cathode enhance formation of rust Fe2O3·xH2O during fabrication.
Iwashima D.   +4 more
doaj   +1 more source

Commodity Windfalls, Polarization, and Net Foreign Assets: Panel Data Evidence on the Voracity Effect [PDF]

open access: yes
This paper examines the effects that windfalls from international commodity price booms have on net foreign assets in a panel of 145 countries during the period 1970-2007.
Rabah Arezki, Markus Brückner
core  

The validity of the general polarization curve equation approximation for the process of metal deposition [PDF]

open access: yes, 2008
Digital simulation was employed for the solution of the general polarization curve equation of metal deposition processes. By approximating the dependence of the exchange current density on concentration with a linear function for one- and two-electron ...
BRANIMIR N. GRGUR   +5 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Composition Distribution and Electrochemical Behavior of an Ni2Al3 Coating on Q235 Steel

open access: yesMetals, 2016
An Ni2Al3 coating was prepared via the electrodeposition of nickel followed by pack aluminization. Polarization curve and electrochemical impedance spectroscopy were performed to study the room temperature corrosion behavior of the coating in a 3.5 wt. %
Ningning Li   +4 more
doaj   +1 more source

Analysis of Damjanovic kinetics of the oxygen reduction reaction: Stability, polarization curve and impedance spectra [PDF]

open access: yes, 2015
We report analysis of equations describing Damjanović kinetics of the oxygen reduction reaction. Analytical expressions for two steady-state solutions are found. Stability analysis shows that one of this solutions is stable, while the other is absolutely
Kulikovsky, Andrei
core   +1 more source

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