Results 221 to 230 of about 22,597,145 (371)

Raman Marker Bands for In Situ Quality Control During Synthesis of 2D Conjugated Metal–Organic Frameworks

open access: yesAdvanced Materials Interfaces, EarlyView.
The properties of 2D conjugated metal–organic frameworks (2D c‐MOFs) are related to their structure and are influenced by the synthesis conditions. Here, in situ, Raman and transmission electron microscopy (TEM) are used to determine Raman marker bands that characterise the reaction progress and yield of phthalocyanine‐based 2D Cu2[ZnPc‐O8] MOFs. Thus,
Fanny Reichmayr   +8 more
wiley   +1 more source

General existence theorems for quasilinear elliptic systems without monotonicity

open access: bronze, 1990
Jürgen Appell   +2 more
openalex   +1 more source

A Sleeve Alters the Pressure‐Stretch Curve of a Hyperelastic Balloon to Enable Pre‐Programmed Sequencing

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley   +1 more source

Additive Manufacturing of Negative Thermal Expansion Metamaterials Using Steels

open access: yesAdvanced Materials Technologies, EarlyView.
Architected lattices with tunable negative thermal expansion are fabricated from common steels using laser powder bed fusion metal additive manufacturing. Optimized multimaterial interfaces and geometry‐driven design produce robust, defect‐minimized structures that remain dimensionally stable up to 300 °C, enabling scalable solutions for thermal ...
Devashish Dubey   +4 more
wiley   +1 more source

An Ultra‐Sub‐Wavelength Microwave Polarization Switching Antenna for Covert Communication Implemented With Directed Surface Acoustic Waves in an Artificial Multiferroic Magnonic Crystal

open access: yesAdvanced Materials Technologies, EarlyView.
A surface acoustic wave (SAW) launched in a two‐dimensional periodic array of magnetostrctive nanomagnets on a piezoelectric substrate excites spin waves in the nanomagnets which radiate electromagnetic waves in space. The polarization of the emitted beam in particular directions and at particular frequencies can be switched between horizontal and ...
Raisa Fabiha   +2 more
wiley   +1 more source

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