Results 11 to 20 of about 261,059 (201)

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

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

“Hollow cathode” gun optics

open access: yesReview of Scientific Instruments, 1997
The generation of an electron beam by a hollow cathode gun in a cusp magnetic field is discussed. Such a gun is proposed for an electron cooling device without toroids. In a section with a homogeneous magnetic field, this beam experiences a disturbance region near the axis where the electron temperature becomes higher.
CIULLO, Giuseppe   +3 more
openaire   +3 more sources

Promoting polysulfides redox conversion by sulfur-deficient ZnS1−x hollow polyhedrons for lithium-sulfur batteries

open access: yesMaterials & Design, 2021
Lithium-sulfur (Li-S) batteries are deemed as the attractive systems for high-energy storage. However, the polysulfides shuttling with slow redox kinetics has seriously hindered their practical applications. Herein, sulfur-deficient zinc sulfide (ZnS1−x)
Wanjie Gao   +5 more
doaj   +1 more source

Remotely induced high-density hollow-anode plasma and its application to fast deposition of photosensitive microcrystalline silicon thin film with preferential <110> orientation

open access: yesAIP Advances, 2019
We investigated the application of a less hydrogen-dilute and low gas pressure hollow-anode plasma to fast chemical-vapor deposition of photosensitive hydrogenated microcrystalline silicon (μc-Si:H).
Toshihiro Tabuchi   +3 more
doaj   +1 more source

Triple Langmuir Probes Measurements of LaB6 Hollow Cathodes Plume

open access: yesFrontiers in Physics, 2019
Lanthanum hexaboride hollow cathodes represent a viable option for high power Hall effect thruster applications, under development for the next generation of manned and robotic interplanetary missions.
Giulia Becatti   +4 more
doaj   +1 more source

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