Small onset voltages in negative corona discharges using the edges of gold and aluminum foils as nano-structured electrodes

Eifert, Alexander; Baier, Tobias; Hardt, Steffen

doi:10.1063/1.4813556

Cited by 30 publications

(15 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, we demonstrated that radial wettability gradients on carbon nanotube surfaces can be formed by using direct current (DC) corona discharge [26]. DC corona discharge is a low-temperature plasma process, which is based on asymmetric electric fields around appropriate electrodes [27,28]. In the present study, we demonstrate that applying a DC corona discharge in a point-to-plane geometry, localized changes of the wettability of polymer surfaces are induced, resulting in wettability gradients.…”

Section: Introductionmentioning

confidence: 82%

Inscribing wettability gradients onto polymer substrates with different stiffness using corona discharge in point-to-plane geometry

Eifert

Petit

Baier

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 82%

Inscribing wettability gradients onto polymer substrates with different stiffness using corona discharge in point-to-plane geometry

Eifert

Petit

Baier

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…With the development of high-voltage direct current (HVDC) systems, problems associated with corona discharge and its related electromagnetic interference have become of growing interest in theoretical and experimental studies [1][2][3]. A corona is a selfsustainable discharge that can be maintained without an external ionization source [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of negative needle‐to‐plane corona in air under various environmental parameters

Feng

Sun

2018

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

In this work, an axisymmetric finite element model and a corona discharge measurement system are used to investigate the negative corona discharge process in air under different environmental conditions. The Trichel pulse train, distribution of electron density and electric field, and the electron generation rate are shown. Pulse frequency, critical electric field, and critical electron generation rate are studied at different values of temperature, relative humidity, and air pressure. The results show that the pulse frequency has a strong relationship with the critical electric field and critical electron generation rate. The pulse frequency increases linearly with the ambient temperature and the relative humidity, while it decreases with the air pressure. This numerical model is helpful in better understanding the mechanisms of negative corona discharge under various environmental parameters. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

show abstract

“…Corona discharge and its associated electric field, audible noise, electromagnetic interference may bring about severe electromagnetic problems near high voltage power transmission lines and substations. Therefore it has been a continuing and essential subject of research work by both electrical engineers and physicists [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The effect of surface roughness on corona-generated electromagnetic interference for long-term operating conductors

Bian

Wang

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

This paper presents a research of the surface roughness effects on corona-generated electromagnetic interference of long-term operating conductors. The detailed surface morphologies and roughness of typical long-term operating conductors were measured and analyzed. The radio noise measurement system based on the corona cage was discussed and the actual radio noise generated by the conductor in the measured cage was obtained, based on the parameters of the corona cage and the measured data. The radio noise tests were carried out under both dry and wet conditions. Under two types of conditions, the corona intensity was higher on the long-term operating conductors contrasted to the new conductors as a result of the anomalistic surfaces of the long-term operating conductors. The rate of decrease of corona inception voltages between the long-term operating conductors and new conductors was discovered to increase with the raise of surface roughness degree R a in linear relationship. Approximate linear relation was also discovered between the averaged radio noise deviation and R a . The rate of decrease of corona inception voltages under wet conditions was slightly higher (about 1%) than that under dry conditions. The difference between the radio noise of long-term operating conductors and that of new conductors was larger (1.3 dB) under wet conditions compared to dry conditions.

show abstract

Small onset voltages in negative corona discharges using the edges of gold and aluminum foils as nano-structured electrodes

Cited by 30 publications

References 23 publications

Inscribing wettability gradients onto polymer substrates with different stiffness using corona discharge in point-to-plane geometry

Inscribing wettability gradients onto polymer substrates with different stiffness using corona discharge in point-to-plane geometry

Numerical modeling of negative needle‐to‐plane corona in air under various environmental parameters

The effect of surface roughness on corona-generated electromagnetic interference for long-term operating conductors

Contact Info

Product

Resources

About