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Analysis of anode temperature stability in hollow cathode vacuum arc brazing under multi-parameter coupling based on SR-MLP [PDF]

open access: yesScientific Reports
During hollow cathode vacuum arc brazing, the anode temperature is prone to instability due to the interplay of multiple parameters, leading to fluctuations in joint temperature and potential localized melting of the base material. To address this issue,
Jinnan Lu   +3 more
doaj   +2 more sources

Range and similarity of hollow cathode discharge in argon

open access: yesHigh Voltage, 2019
Hollow cathode discharge and micro-hollow cathode discharge have numerous applications in the fields of industry, medical treatment, environmental protection, and analytical chemistry.
Xinyu Hou   +5 more
doaj   +3 more sources

The iron-neon hollow-cathode spectrum [PDF]

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1975
Over 4000 wave lengths are listed between 1900 and 9000 Å for Fe i, Fe ii, Ne i and Ne ii lines measured in a hollow cathode discharge tube with iron electrodes and a neon gas filling. Photoe-electric traces between 2400 and 5700 Å on a semiquantitative intensity scale are also included. For Fe i, energy values for 124 even and 240 odd levels have been
Crosswhite, H.M.
openaire   +3 more sources

Hollow Cathode Discharges - Analytical Applications

open access: yesJournal of Research of the National Bureau of Standards, 1984
The low pressure glow discharges considered in this paper are the hollow cathode (Paschen), and the flat cathode (Grimm). Both discharges have similar voltage-current characteristics which are responsible for their radiation stability. The analytical sample is supplied to the discharge through a sputtering mechanism which provides a stable and non ...
Mavrodineanu, R.
openaire   +3 more sources

Simulation of Hollow Cathode in the Hall Thruster by Particle in Cell (PIC) Method [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2023
The this article the characteristics of the hollow cathode plasma particles in the spt-100 hall effect thruster have been investigated by two-dimensional particle-in-cell simulation. One of the main and important components of the hall thruster is hollow
masumeh kiantaj   +3 more
doaj   +1 more source

Computational and Experimental Study on the Discharge Model of a 20 Amperes Emission Current Hollow Cathode [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
The discharge characteristics of hollow cathode directly affect the performance of thruster. In order to obtain the plasma parameters of the 20 A emission current hollow cathode, COMSOL software is used to simulate the potential distribution, neutral ...
Sun Mingming, Chao Liu, Zengjie Gu
doaj   +2 more sources

Effect of Working Current on C12A7 Hollow Cathode

open access: yesAerospace, 2023
The C12A7 hollow cathode is expected to usher in a new generation of hollow cathodes because of its low work function and chemical stability. In order to reduce the emission melting and degradation caused by the overheating of this new cathode, different
Yajun Huang   +4 more
doaj   +1 more source

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

Fluorinated Hollow Porous Carbon Spheres as High-Performance Cathode Material for Primary Battery

open access: yesBatteries
Fluorinated carbon cathode materials have extremely high theoretical specific energy among known cathode materials of lithium primary batteries. Nevertheless, current fluorinated carbon cannot meet the performance demands of future applications due to ...
Yan Zou   +5 more
doaj   +2 more sources

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

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