Generation characteristics of a metal ion plasma jet in vacuum discharge

Tian, Jia; Liu, Wenzheng; Cui, Weisheng; Gao, Yongjie

doi:10.1088/2058-6272/aabedf

Cited by 11 publications

(9 citation statements)

References 21 publications

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“…A simplified single-pulse discharge circuit, which was described in detail inour previous work [11], was used to generate the discharge and is schematically presented in Figure 1 for all μCAT structures under study. The cathode was electrically connected to the negative high voltage terminal of the discharge circuit, and the anode was grounded.…”

Section: Design Of μCat and Its Circuitrymentioning

confidence: 99%

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Double‐ejection micro‐cathode arc thruster applied to micro‐satellite

et al. 2022

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An innovative double-ejection micro-cathode arc thruster (AC d -µCAT), which consists of a cylindrical inner anode, a cylindrical outer cathode and two insulating sleeves (an inner insulating sleeve and an outer insulating sleeve), was proposed. The differences in electrical characteristics, plasma parameters and propulsion performance between the newly proposed AC d -µCAT and a traditional μCAT were examined. Study results showed that compared to the traditional μCAT structure, by using the AC d -µCAT, the peak value of produced thrust was increased 9.3 times, while the amplitude of the ion current and the ion-to-arc ratio were increased 5.4 and 5.9 times (from 1.2% to 7.1%), respectively. In addition, data from Langmuir probe experiments indicated that peak values of the directional propagation speed and density of plasma plume were increased 3.1 times and 4.2 times, respectively. Moreover, plasma plume directional ejection performance was also significantly improved. This study result will provide support for the development of a new-generation μCAT.

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Section: Design Of μCat and Its Circuitrymentioning

confidence: 99%

“…The current flowing to vacuum chamber (chamber current, I chamber (t)) was determined by I chamber (t) = I C (t) − I A (t). Plasma density and directional propagation speed were measured by using an improved Langmuir probe measurement method [8][9][10][11].…”

Section: Design Of μCat and Its Circuitrymentioning

confidence: 99%

Double‐ejection micro‐cathode arc thruster applied to micro‐satellite

et al. 2022

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“…Actually, this is a phenomenon related to electrostatic forces, and it can occur in vacuum conditions as well as in air. Corona discharge can occur under variable air pressures [32][33][34][35], either below the standard atmospheric pressure [36], or even in vacuum conditions [37][38][39][40]. The precursor and trigger of vacuum discharges and breakdowns is the field emission [41].…”

Section: History Of Ionic Windmentioning

confidence: 99%

A review on recent advances and challenges of ionic wind produced by corona discharges with practical applications

Qu¹,

Zeng²,

Zhang³

et al. 2021

J. Phys. D: Appl. Phys.

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Ionic wind, an induced phenomenon during corona discharge, possessing the features of silent operation and no moving parts, has a wide range of applications. Ionic wind generation is accompanied by complex physical processes, involving gas ionization, ion recombination, flow, and various chemical reactions, as well as mutual couplings between some of them. Therefore, understanding the corona discharge process and ionic wind generation is crucial for researchers and engineers to better utilize this phenomenon in practical applications. In this review, the principles of corona discharge and its induced ionic wind are presented. Subsequently, ionic wind generators (IWGs) are discussed according to their applications, and the corresponding advances based on experimental studies and numerical simulations are also reviewed. Moreover, the challenges of transitioning the ionic wind technology from laboratory studies to practical applications are discussed. These challenges include the excessively high onset voltage of the corona, ozone emission, and influence of environmental conditions. Furthermore, the mechanisms of these barriers and several effective approaches for mitigating them are provided. Finally, some future research prospects and the conclusions are presented.

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“…In the process of studying ejection performance of vacuum metal plasma jets, it was found that most charged particles enter the anode when it is directly grounded, which leads to a decrease in the ejection performance of a plasma jet ejected along the axis of an insulating sleeve nozzle, including plasma density and propagation velocity. In order to prevent charged particles from entering the anode, J. Tian proposed a fully insulated anode structure [23]. However, discharge difficulty increased and plasma production was reduced.…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of discharge loop parameters on anode side on generation characteristics of metal plasma jet in a pulsed vacuum discharge

Zhang¹,

Liu²,

Tian³

et al. 2021

Plasma Sci. Technol.

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In a pulsed vacuum discharge, the ejection performance of a metal plasma jet can be effectively improved by preventing charged particles from moving to the anode. In this paper, the effects of resistance and capacitance on the anode side on the discharge characteristics and the generation characteristics of plasma jet are investigated. Results show that the existence of a resistor on the anode side can increase the anode potential, thereby preventing charged particles from entering the anode and promoting the ejection of charged particles along the axis of the insulating sleeve nozzle. The application of a capacitor on the anode side can not only absorb electrons at the initial stage of discharge, increasing the peak value of the cathode hump potential, but also prevent charged particles from moving to the anode, thereby improving the ejection performance of the plasma jet. In addition, the use of a larger resistance and a smaller capacitance can improve the blocking effect on charged particles and further improve the ejection performance of the plasma jet. Results of this study will provide a reference for the improvement of the ejection performance of plasma jets and their applications.

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Generation characteristics of a metal ion plasma jet in vacuum discharge

Cited by 11 publications

References 21 publications

Double‐ejection micro‐cathode arc thruster applied to micro‐satellite

Double‐ejection micro‐cathode arc thruster applied to micro‐satellite

A review on recent advances and challenges of ionic wind produced by corona discharges with practical applications

Study of the influence of discharge loop parameters on anode side on generation characteristics of metal plasma jet in a pulsed vacuum discharge

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