Results 61 to 70 of about 63,281 (246)

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Zr-modified TiAlSiN coatings regulate interfacial thermomechanics and primary shear-zone deformation during dry machining

open access: yesJournal of Materials Research and Technology
This work clarifies how representative TiAlSi(Zr)N coating states influence tool-chip interfacial thermomechanics, tool-wear evolution, and primary shear-zone (PSZ) deformation during dry machining.
Ruihao Zhang   +6 more
doaj   +1 more source

Non-LTE LINE FORMATION FOR Zr I/II IN COOL STARS

open access: yesOdessa Astronomical Publications, 2008
Non-local thermodynamical equilibrium (non-LTE) line formation for neutral and singly-ionized zirconium is considered for the first time through a range of stellar parameters when the Zr abundance varies from the solar value down to [Zr/H] = - 3.
A. B. Vinogradova, L. I. Mashonkina
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

Effects of Xuanbai Chengqi decoction on lung compliance for patients with exogenous pulmonary acute respiratory distress syndrome

open access: yesDrug Design, Development and Therapy, 2016
Zhengrong Mao,1 Haifeng Wang2,3 1Department of Critical Care Medicine, The First Affiliated Hospital of Henan, University of Traditional Chinese Medicine, 2Department of Respiratory Medicine, The First Affiliated Hospital of Henan University of ...
Mao ZR, Wang HF
doaj  

Microstructural evolution of Zr-2.5Nb alloy under helium ion irradiation at room temperature and 350°C: grain morphology and allotrope effects

open access: yesMaterials & Design
To elucidate the roles of α-Zr grain morphology and α/β phase difference in the irradiation response of Zr-2.5Nb alloy, TEM thin‑foil samples were irradiated with 50  keV He+ ions at fluences of 3 × 1016 cm−2 (∼0.3 dpa), 5 × 1016 cm−2 (∼0.5 dpa) and 1 ...
Chaojun Luo   +7 more
doaj   +1 more source

From Bulk to Colloidal Nanocrystals: Top‐Down Synthesis of Highly Luminescent Cs2ZrCl6:Te4+ Double Perovskite Nanocrystals for X‐Ray Imaging

open access: yesAdvanced Functional Materials, EarlyView.
Top‐down ultrasonication produces highly emissive Cs2ZrCl6:Te4+ nanocrystals (NCs) with a PLQY of 65%, which is higher compared to that of the NCs synthesized by typical bottom‐up hot‐injection synthesis. The colloidal Cs2ZrCl6:Te4+ NCs have been found to be potential candidates for x‐ray scintillation imaging.
Yang Liu   +12 more
wiley   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio   +7 more
wiley   +1 more source

CO2 Sorption on Ti-, Zr-, and [Ti,Zr]-Pillared Montmorillonites

open access: yesMaterials
Montmorillonite is a layered clay mineral whose modification by pillaring, i.e., insertion of oxide nanoclusters between the layers, yields porous materials of great potential in sorption and catalysis. In the present study, an unrefined industrial bentonite from Kopernica (Slovakia), containing ca.
Agnieszka Klimek   +5 more
openaire   +2 more sources

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