Results 21 to 30 of about 261,100 (291)

Plasma hollow cathodes [PDF]

open access: yesJournal of Applied Physics, 2021
Hollow cathode plasma discharges are a fundamental part of a large variety of applications in industry, academia, and space. From surface processing and coatings deposition to plasma–surface interaction research and electric propulsion, advances in hollow cathode modeling and performance are critically important to the progress and evolution of these ...
Dan M. Goebel   +3 more
openaire   +1 more source

Investigation of a Glow Discharge with a Coaxial Hollow Cathode

open access: yesEast European Journal of Physics, 2022
The article is devoted to the study of the operating modes of a glow discharge with a coaxial hollow cathode in helium and neon gases. It is shown that the burning voltage of a discharge with a coaxial hollow cathode is lower than one with a cylindrical
Stanislav V. Pogorelov   +3 more
doaj   +1 more source

Influence of Electron Injection on the Characteristics of a Hollow Cathode Glow Discharge

open access: yesEast European Journal of Physics, 2021
The article presents the results of experimental studies of a glow discharge with a hollow cathode in helium and argon gases using an auxiliary discharge as an electron emitter. The authors proposed to make the electrode common for both discharges in the
Stanislav V. Pogorelov   +3 more
doaj   +1 more source

SIMULATION OF A HIGH-CURRENT NON-SELF-SUSTAINED GLOW DISCHARGE WITH A HOLLOW CATHODE AT LOW PRESSURE

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика, 2023
The paper introduces the results of theoretical and computer modeling of a high-current, non-self-sustaining, low-pressure glow discharge in a plasma source.
Tamara V. Koval   +2 more
doaj   +1 more source

Synthesis of Hollow Paramontroseite VO2 Microspheres as Stable Electrode Materials for Lithium-ion Batteries

open access: yesInternational Journal of Electrochemical Science, 2021
A simple and versatile method was developed to prepare hollow Paramontroseite VO2 microspheres. Hollow VO2 microspheres were formed via an Ostwald ripening mechanism.
Hailong Fei
doaj   +1 more source

Freestanding Bamboo-Like Nitrogen-Doped Carbon Nanofibers/PANI Dual-Conductive Cathodes via Interfacial Engineering for High-Performance Lithium-Sulfur Batteries. [PDF]

open access: yesAdv Sci (Weinh)
Bamboo‐like nitrogen‐doped carbon fibers (BNCFs) were synthesized via a vapor‐liquid‐solid catalytic growth method and further integrated with polyaniline to fabricate a freestanding BNCFs/S/PANI cathode. The PANI coating and BNCFs framework synergistically establish an interconnected conductive network with abundant nitrogen‐active sites, thereby ...
Yang J   +5 more
europepmc   +2 more sources

Recent Advances in Carbon Cathode Materials toward High-Performing Zinc-Ion Hybrid Supercapacitors. [PDF]

open access: yesAdv Sci (Weinh)
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Hirooka T, Liu Z, Parkin IP, He G.
europepmc   +2 more sources

Mechanical and Wear Properties of 42CrMo Steel by Plasma Nitriding assisted Hollow Cathode Ion Source

open access: yesMaterials Research, 2021
Plasma nitriding is a plasma-activated thermochemical method widely used to increase the fatigue strength, hardness and wear resistance of low-alloy steels.
F.S. Zhao   +9 more
doaj   +1 more source

Improved Field Emission Properties of Carbon Nanostructures by Laser Surface Engineering

open access: yesNanomaterials, 2020
We herein present an alternative geometry of nanostructured carbon cathode capable of obtaining a low turn-on field, and both stable and high current densities.
Minh Nhat Dang   +5 more
doaj   +1 more source

Hollow cathode life-time prediction from low work function surface coverage evolution [PDF]

open access: yes, 2008
In this paper a procedure to update the plasma parameters relatively to changes of the hollow cathode surface work function has been developed. This procedure has been validated with experimental results and then coupled with the deposition/desorption ...
Coletti, M.   +3 more
core   +2 more sources

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