Results 121 to 130 of about 377,284 (340)

Heterogenous microstructure and texture evolution of K-doped tungsten thick plate during hot-rolling processing

open access: yesNuclear Materials and Energy
The fabrication and processing of large bulk materials such as potassium (K)-doped tungsten pose significant technical challenges in terms of sintering and forming processes.
Ping Ren   +9 more
doaj  

Smaller-grained tungsten is stronger tungsten

open access: yesScilight, 2020
Experiment finds nanocrystalline tungsten to be about 3.5 times stronger than coarse-grained tungsten, and hints at the potential of nanostructured bulk materials.
openaire   +2 more sources

Buckling‐Resistant and Trace‐Stacked (BRATS) Design Enables Aid‐Free Implantation of Flexible Multielectrode Array with Minimized Inflammatory Tissue Response

open access: yesAdvanced Functional Materials, EarlyView.
Buckling‐resistant and trace‐stacked (BRATS) intracortical microelectrode arrays (MEAs) eliminate the need for insertion aid and complex surgical setup, resulting in minimal inflammatory tissue response, compared to conventional flexible MEAs inserted with aid. Trace stacking effectively doubled the channel count without increasing the MEA shank width,
May Yoon Pwint, Delin Shi, X. Tracy Cui
wiley   +1 more source

Toward Noninvasively Imaging pH at the Surface of Implanted Orthopedic Devices in Live Rabbits Using X‐ray Excited Luminescence Chemical Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Imaging pH in a live rabbit at the surface of a sensor‐coated titanium plate using X‐ray excited luminescent chemical imaging (XELCI). A raster scanning X‐ray beam generates radioluminescence from a spot on the sensor, and the luminescence passes through the tissue and is collected at two wavelengths to determine local pH.
Unaiza Uzair   +6 more
wiley   +1 more source

Control of oscillations in a discharge circuit [PDF]

open access: yes, 1972
Development of electric discharge circuit damping element which increases in resistance with current and time is described. Damping element is resistor made of tungsten wire which has large resistance-temperature coefficient.
Cheng, D. Y.
core   +1 more source

Contact Transfer Epitaxy of Halide Perovskites

open access: yesAdvanced Materials, EarlyView.
Bringing a halide perovskite thin film (donor) into contact with a self‐assembled monolayer of oriented perovskite nanocrystals (acceptor) at elevated temperature leads to epitaxial transfer of halide perovskite from the donor to the acceptor substrate.
Hongyu Sun   +8 more
wiley   +1 more source

Multifunctional Neural Probes Enable Bidirectional Electrical, Optical, and Chemical Recording and Stimulation In Vivo

open access: yesAdvanced Materials, EarlyView.
Convergence drawing is used to create flexible, microscale, multifunctional fiber‐based neural probes. Optimized materials selection enables individual devices to perform neural recording, electrical stimulation, optogenetics, fiber photometry, fluid delivery, and voltammetric neurotransmitter detection in rodents.
Nicolette Driscoll   +16 more
wiley   +1 more source

High repetition rate femtosecond laser heat accumulation and ablation thresholds in cobalt-binder and binderless tungsten carbides [PDF]

open access: yes, 2019
Femtosecond (fs) laser ablation has been studied for the potential of fast, high precision machining of difficult-to-machine materials like binderless tungsten carbide. Obstacles that have limited its efficiency include melting from heat accumulation (HA)
Aguilar, G   +5 more
core   +1 more source

Advancing from MOFs and COFs to Functional Macroscopic Porous Constructs

open access: yesAdvanced Materials, EarlyView.
This review study investigates the recent progress and methodologies for manufacturing metal–organic framework (MOF) or covalent–organic framework (COF)‐based 3D structured macroscopic porous constructs with high structural integrity, providing the possibility to control their porosity across dimensions.
Seyyed Alireza Hashemi   +8 more
wiley   +1 more source

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