Results 91 to 100 of about 90,399 (267)

Electrochemical Studies on the Inhibitive Action of Damssisa and Halfabar on the Alkaline Corrosion of Zinc

open access: yesInternational Journal of Electrochemical Science, 2014
The inhibitive effect of Damssisa and Hlfabar extracts on the corrosion of zinc in aqueous solutions of 0.5 M sodium hydroxide were investigated at 30 °C by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques ...
B.A. Abd-El-Naby   +4 more
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Effect of Hydrogen on Corrosion Behavior of S32750 Super Duplex Stainless Steel

open access: yesInternational Journal of Electrochemical Science, 2018
Electrochemical behaviors and critical pitting temperature (CPT) of S32750 super duplex stainless steel (SDSS) in 3.5% NaCl solution with various hydrogen charging current densities (HCCD) were investigated by using open-circuit potential (OCP) curves ...
Yier Guo   +5 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

Investigation the effects of Na2MoO4 as an inhibitor on electrochemical corrosion behavior of 316L stainless steel in LiBr solution

open access: yesZaštita Materijala, 2018
The effect of sodium molybdate (Na2MoO4) as an inhibitor at various concentrations of 50, 100 and 200ppm on the electrochemical corrosion behavior of 316L stainless steel in LiBr solution at 60°C was studied by polarization curves, electrochemical ...
Amin Rabiei Baboukani   +2 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Emergent Topological Magnons and Thermal Hall Effect in 2D Filling‐Enforced Fully Compensated Ferrimagnets

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of ferroelectric‐intercalation‐driven transitions in magnetic configurations and magnonic topological phases, together with the symmetry relations of magnonic Berry curvature. ABSTRACT Magnons in collinear magnets with vanishing net magnetization offer unique advantages for spin transport, including ultrafast dynamics and ...
Yingxi Bai   +8 more
wiley   +1 more source

Chains on the Eggers tree and polar curves

open access: yesRevista Matemática Iberoamericana, 2003
If B is a branch at O\in\mathbb{C}^2 of a holomorphic curve, a Puiseux parametrisation y=\psi(x) of B determines "pro ...
openaire   +3 more sources

Infinitesimal adjunction and polar curves [PDF]

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2009
The polar curves of foliations $\mathcal F$ having a curve $C$ of separatrices generalize the classical polar curves associated to hamiltonian foliations of $C$. As in the classical theory, the equisingularity type ${\wp}({\mathcal F})$ of a generic polar curve depends on the analytical type of ${\mathcal F}$, and hence of $C$.
openaire   +2 more sources

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

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