Results 101 to 110 of about 386,614 (305)

A Scalable Method for Cavity‐Enhanced Solid‐State Quantum Sensors

open access: yesAdvanced Science, EarlyView.
Photoluminescent color centres in diamond and hexagon boron nitride are powerful nanoscale solid‐state quantum sensors. Methods for integrating them into macroscopic structures that improve their sensitivity are highly sought after. This study demonstrates a low‐cost and scalable method for the fabrication of quantum sensor‐doped thin‐film cavities ...
Daniel J. Tibben   +5 more
wiley   +1 more source

The synthesis of boron carbide filaments final report [PDF]

open access: yes
Synthesis, strength, crystal structure, and composite material formation of boron carbide ...
Cree, R.   +3 more
core   +1 more source

Boron and boron carbide by vapor deposition

open access: yesElectrodeposition and Surface Treatment, 1974
Abstract Boron trichloride can be reduced by hydrogen at 1,300°C with a recovery of approximately 85% as elemental boron. The optimum H2 to BCl3 molar ratio was 30 under the test conditions used. No reaction between tungsten substrates and the boron deposits could be detected.
J.G. Donaldson   +2 more
openaire   +2 more sources

Electronic metal-support interaction enhanced oxygen reduction activity and stability of boron carbide supported platinum

open access: yesNature Communications, 2017
Catalysing the reduction of oxygen in acidic media is a standing challenge. Although activity of platinum, the most active metal, can be substantially improved by alloying, alloy stability remains a concern.
C. Jackson   +9 more
semanticscholar   +1 more source

Polyzwitterionic Organohydrogel and Soft Composite with Tunable Sol–Gel Properties Enabling On‐Demand Functionalization with Colloids

open access: yesAdvanced Science, EarlyView.
Poly[2‐(methacryloyloxy)ethyl]dimethyl‐(3‐sulfopropyl)ammonium hydroxide‐based organohydrogels are formed via nonsolvent‐induced gelation, featuring tunable viscoelasticity. Functional fillers (MXene nanosheets, magnetic NdFeB microparticles) enable electrical, magnetic, and mechanical responsiveness for applications in mechano‐tunable electromagnetic ...
Ziyue Miao   +4 more
wiley   +1 more source

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

Gas-phase deposition of cavitation-resistant coatings based on boron carbide

open access: yesХімія, фізика та технологія поверхні, 2018
Reliability and profitability of NPP operation of any type to a large extent depend on the reliable operation of the system of its pipelines. From literary sources is shown that the most dangerous zone, in terms of erosion wear, is a pipeline ...
A. Yu. Zhuravlov   +2 more
doaj   +1 more source

Systematic error in conventionally measured Raman spectra of boron carbide-A general issue in solid state Raman spectroscopy.

open access: yesReview of Scientific Instruments, 2019
Solid state Raman spectroscopy requires careful attention to the penetration depth of exciting laser radiation. In cases like semiconducting boron carbide and metallic hexaborides, high fundamental absorption above the bandgap and reflectivity R ≈ 1 ...
H. Werheit
semanticscholar   +1 more source

Rapid and Direct Detection of Methamphetamine in Biofluids using a MXene‐Enabled Electrochemical Sensor

open access: yesAdvanced Science, EarlyView.
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang   +7 more
wiley   +1 more source

The Hydrothermal Method of Preparing Boron–Saccharide Precursors for the Synthesis of Boron Carbide and Its Influence on the Morphology and Phase Composition of the Obtained Products

open access: yesCrystals
Owing to its properties, boron carbide has been applied in scientific and industrial fields. For this reason, B4C powders should be characterized by high purity and homogeneity in grain size and shape.
Dawid Kozień   +4 more
doaj   +1 more source

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