Spatial–Temporal Evolution and Plasma Parameters’ Diagnosis of a Transverse Glow Discharge in Atmospheric Pressure Air

Li, Xuechen; Wu, Kaiyue; Liu, Renjing; Yang, Linwei; Geng, Jin-Jun; Wang, Biao; Jia, Pengying

doi:10.1109/tps.2018.2882987

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…Hence, T vib and T exc have the similar variation trend with varying V b . Moreover, T g reflects the energy transferred from electron to neutral gas molecules [52,60]. Less energy is transferred with decreasing T exc , leading to the similar variation trend of T g and T exc .…”

Section: Resultsmentioning

confidence: 89%

A diffuse argon plume generated downstream of an atmospheric pressure plasma jet equipped with a positively biased electrode

Zhao¹,

Wu²,

He³

et al. 2021

J. Phys. D: Appl. Phys.

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Compared with the diffuse mode of helium plasma jets, a filamentary mode is normally produced in the plasma plume with less expensive inert gas, such as argon, which is undesirable because intense discharge in the filamentary mode may cause damage to fragile samples. Many efforts have been attempted to realize the diffuse mode of an argon plasma jet. In this paper, the diffuse mode is realized in an atmospheric pressure argon plasma jet with increasing biased voltage (V b) applied to a downstream plate electrode. Results show that the diffuse mode transits from the filamentary mode with the increase of V b. Waveforms of voltage, current and integrated light emission reveal that the filament originates from a positive discharge with a needle anode, while the diffuse mode results from negative discharges with a needle cathode, which consist of a Trichel-pulse phase and a slower-varying phase. By fast photography, the positive discharge is attributed to a streamer regime, whereas the negative discharges belong to a Townsend-discharge regime. From optical emission spectroscopy, electron density, electron excitation temperature, vibrational temperature, and rotational temperature are studied as functions of V b.

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Section: Resultsmentioning

confidence: 89%

A diffuse argon plume generated downstream of an atmospheric pressure plasma jet equipped with a positively biased electrode

Zhao¹,

Wu²,

He³

et al. 2021

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

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DC discharges with a porous liquid anode: Increasing refrigerant efficiency for flash evaporation cooling with charged particle kinetics

Zhang

Hou

2021

International Journal of Heat and Mass Transfer

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The influence of micro/nano-structure on transmission ability of low-energy Electron Transmission Window

Tian

Zhang

et al. 2021

Journal of Applied Physics

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It is a extremely difficult to make the Electron Transmission Window (ETW) have the transmission ability for low-energy electrons, excellent mechanical strength, and thicker thickness at a large barometric pressure gradient, i.e., from vacuum to atmosphere. We present a new physical model of the ETW, which has a periodic array microstructure to restrain the temperature increase and nanostructures to provide transmission channels for electron sources. Two different periodic array micro-pattern ETWs with nanostructures have been prepared to testify the physical mechanisms, which are a thicker periodic array triangle micro-pattern unit with a nested triangle pillar type (NETW) and a thinner one without nested part type (OETW). A nanosecond-pulse power source and an array field emission electrode are adopted to focus the energy and reduce the energy dissipation of the electron source. The transmission efficiencies of the NETW and the OETW are 5.86% and 2.82% at −3.5 kV, 8.90% and 5.77% at −5.5 kV, and 12.69% and 11.97% at −8.5 kV pulsed voltages, respectively. In addition, the transmission abilities of the two ETWs have been compared by visualization diagnoses in transient and steady states, which match well with the results of transmission efficiencies. It is found that the results are consistent with those of this novel model mechanism.

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Spatial–Temporal Evolution and Plasma Parameters’ Diagnosis of a Transverse Glow Discharge in Atmospheric Pressure Air

Cited by 7 publications

References 34 publications

A diffuse argon plume generated downstream of an atmospheric pressure plasma jet equipped with a positively biased electrode

A diffuse argon plume generated downstream of an atmospheric pressure plasma jet equipped with a positively biased electrode

DC discharges with a porous liquid anode: Increasing refrigerant efficiency for flash evaporation cooling with charged particle kinetics

The influence of micro/nano-structure on transmission ability of low-energy Electron Transmission Window

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