Results 61 to 70 of about 11,676 (280)

Dependence of magnetic properties of (Fe50Co50)(78)Si7B15 amorphous wire on the diameter

open access: yes, 1996
The dependence of the magnetic properties of amorphous wire on the diameter have been investigated. The anisotropy constant, hence the internal stress, of the wire increases with the wire diameter.
5184   +11 more
core   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

open access: yesAdvanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh   +4 more
wiley   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

On Influence of Magnetic Fields and Excitation Conditions on the Magnetization Distribution in Microwire Magnetoimpedance Element [PDF]

open access: yesЖурнал нано- та електронної фізики, 2014
One of important condition for the successful development of effective magnetic field sensors based on amorphous ferromagnetic microwires is to identify factors affecting the reversal processes in the surface layer of the magnetoimpedance wire.
A.T. Morchenko   +2 more
doaj  

Low-loss multilayer compatible a-Si:H optical thin films for photonic applications [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
This paper reports about hydrogenated amorphous silicon which can be employed as low-loss optical material for small footprint and cost-effective photonic integrated circuits.
Lipka T., Horn O., Amthor J., Müller J.
doaj   +1 more source

Strain sensing by exploiting the Matteucci effect in amorphous wire

open access: yes, 2019
Previous investigations of the Matteucci effect in amorphous microwires have yielded a basic understanding of the underlying physical mechanism. However, a complete quantitative model is still elusive particularly in explaining the role of magnetoelastic
Meydan, Turgut   +2 more
core   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

open access: yesAdvanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang   +9 more
wiley   +1 more source

On the Stability of the Melt Jet Stream during Casting of Metallic Glass Wires

open access: yesMetals, 2015
The factors that affect the stability of the melt stream during the casting of wire directly from the melt have been investigated. It is shown that the criticality of process parameters centres mostly on the forces imposed on the melt stream at ...
Ayo Olofinjana, Nyuk Yoong Voo
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

ESR Studies on Hot-Wire Amorphous Silicon

open access: yes, 1997
We measure a series of hot-wire (HW) amorphous silicon films grown with hydrogen contents cH varying between 0.5–17at.%. From constant photocurrent method (CPM) measurements and the steady-state photocarrier grating method (SSPG) we find good agreement ...
A. H. Mahan, T. Unold
core   +1 more source

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