Results 61 to 70 of about 1,553,923 (243)

Precision Thermal Treatments, Atom Probe Characterization, and Modeling to Describe the Fe-Cr Metastable Miscibility Gap

open access: yes, 2021
International audienceAbstract The Fe-Cr metastable miscibility gap has been studied by high-precision thermal treatments, Vickers micro-hardness (HV) measurements, and atom probe tomography (APT).
Peter Hedström   +17 more
core   +1 more source

Oligoethylene Glycol Side‐Chain Engineering of Y6‐Derived Nonfullerene Acceptors for Thermally Induced Spontaneous Pseudo‐Planar Heterojunction Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
OEG‐functionalized Y6‐derived acceptors induce thermally driven vertical phase separation, enabling pseudo‐planar heterojunction organic photodetectors. The resulting PM6:YTEG‐4F and PM6:YTEG‐4Cl organic photodetectors suppress dark current density by approximately 260‐fold and 210‐fold, respectively, while maintaining efficient photoresponse ...
Se Jeong Park   +11 more
wiley   +1 more source

Prediction of minimum miscibility pressure of CO2-oil systems using grey-box modeling for carbon dioxide capture, utilization, storage, and enhanced oil recovery

open access: yesJournal of Petroleum Exploration and Production Technology
Given the escalating concerns surrounding climate change and global warming, reducing anthropogenic carbon dioxide emissions has become more urgent than ever.
Milad Asghari   +3 more
doaj   +1 more source

Examination of the binary system Al2O3‐ZrO2 by aero acoustic levitation melting

open access: yesInternational Journal of Ceramic Engineering & Science, 2022
Al2O3‐ZrO2 composites exhibit excellent mechanical and high‐temperature properties. The solidification of various hypoeutectic compositions has been studied by means of aero‐acoustic levitation.
Jonas Niessen   +4 more
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

Mid-Infrared High-Power InGaAsSb/AlGaInAsSb Multiple-Quantum-Well Laser Diodes Around 2.9 μm

open access: yesNanomaterials
Antimonide laser diodes, with their high performance above room temperature, exhibit significant potential for widespread applications in the mid-infrared spectral region. However, the laser’s performance significantly degrades as the emission wavelength
Hongguang Yu   +14 more
doaj   +1 more source

Suppressing spinodal decomposition by incorporation of reduced graphene oxide into (Sn0.5Ti0.5)O2 solid solution

open access: yesMaterials Research Express, 2020
Here, it is found that the incorporation of rGO into (Sn _0.5 Ti _0.5 )O _2 solid solution suppresses spinodal decomposition via two characteristic routes.
Yun-Hyuk Choi
doaj   +1 more source

Strained In1-xGaxAsyP1-y/InP quantum well heterostructures grown by low-pressure metalorganic vapor phase epitaxy [PDF]

open access: yesMaterials Research, 1999
We have investigated the optical and the structural properties of strained In1-xGaxAsyP1-y/InP and strain compensated In1-xGaxAsyP1-y/In1-zGazAsqP1-q/InP multi-quantum well heterostructures grown by low-pressure metalorganic vapor phase epitaxy at ...
Wilson de Carvalho Jr   +4 more
doaj   +1 more source

Hydrophilic Polymers Enable Gastrointestinal Transit Monitoring by Fluorine‐19 Magnetic Resonance Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Hydrophilic fluorinated copolymers dissolve in chyme and give a strong, single 19F signal, unlike phase‐separating perfluorocarbons. Combined 1H‐19F MRI tracks their whole‐gut transit non‐invasively and without ionizing radiation. In rats, the tracers move through the gastrointestinal tract, resist resorption, and are well tolerated, a proof‐of‐concept
Ondřej Groborz   +13 more
wiley   +1 more source

Numerical and Experimental Evaluation of Thermal Conductivity: An Application to Al-Sn Alloys

open access: yesMetals, 2021
Evaluation of thermal conductivity of composite materials is extremely important to control material performance and stability in thermal applications as well as to study transport phenomena.
Ziwei Li   +2 more
doaj   +1 more source

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