Modification of copper surface by runaway electrons preionized diffuse discharges at atmospheric pressure

Cheng Zhang, Mikhail V. Erofeev, Zhi Fang, Mikhail A. Shulepov, Zhongsheng Zhou, Victor Fedotovich Tarasenko, Tao Shao

Результат исследований: Материалы для журналаСтатья

5 Цитирования (Scopus)

Выдержка

Runaway electrons preionized diffuse discharge (REP DD) could generate volume non-thermal plasmas at atmospheric pressure, thus is widely used for surface modification. In this paper, two pulsed generators are used to produce REP DD for modifying copper (Cu) foil in atmospheric air. One generator produces repetitive pulses with a peak voltage of 40 kV and a rise time of 150 ns. The other generator produces single pulse with a peak voltage of 280 kV and a rise time of 0.5 ns. After the treatment, the modification results for including the macro topography, chemical composition and microhardness in different depths of the Cu surface are analyzed. In order to estimate the modification results in different areas of the Cu foil, several points from the center to the edge of the Cu sample are selected. It could be observed that the maximal modification effect usually appears in the area where the density of the diffuse discharge plasma is highest. The experimental results show REP DD treatment could significantly decrease the water contact angle and increase surface energy of the Cu foil. Meanwhile, it could decrease the carbon concentration and increase oxygen concentration in the near-surface layer of the Cu sample, and enhance the microhardness in different depths of the Cu foil.

Язык оригиналаАнглийский
Страницы (с-по)202-209
Число страниц8
ЖурналLaser and Particle Beams
Том34
Номер выпуска2
DOI
СостояниеОпубликовано - 1 июн 2016

Отпечаток

Metal foil
Atmospheric pressure
foils
atmospheric pressure
Copper
copper
generators
Electrons
Microhardness
microhardness
Plasmas
Electric potential
electric potential
pulses
Interfacial energy
plasma jets
Topography
surface energy
Contact angle
Macros

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Цитировать

Modification of copper surface by runaway electrons preionized diffuse discharges at atmospheric pressure. / Zhang, Cheng; Erofeev, Mikhail V.; Fang, Zhi; Shulepov, Mikhail A.; Zhou, Zhongsheng; Tarasenko, Victor Fedotovich; Shao, Tao.

В: Laser and Particle Beams, Том 34, № 2, 01.06.2016, стр. 202-209.

Результат исследований: Материалы для журналаСтатья

Zhang, Cheng ; Erofeev, Mikhail V. ; Fang, Zhi ; Shulepov, Mikhail A. ; Zhou, Zhongsheng ; Tarasenko, Victor Fedotovich ; Shao, Tao. / Modification of copper surface by runaway electrons preionized diffuse discharges at atmospheric pressure. В: Laser and Particle Beams. 2016 ; Том 34, № 2. стр. 202-209.
@article{eb097b2d65224fd98bdc1136cdaaa2eb,
title = "Modification of copper surface by runaway electrons preionized diffuse discharges at atmospheric pressure",
abstract = "Runaway electrons preionized diffuse discharge (REP DD) could generate volume non-thermal plasmas at atmospheric pressure, thus is widely used for surface modification. In this paper, two pulsed generators are used to produce REP DD for modifying copper (Cu) foil in atmospheric air. One generator produces repetitive pulses with a peak voltage of 40 kV and a rise time of 150 ns. The other generator produces single pulse with a peak voltage of 280 kV and a rise time of 0.5 ns. After the treatment, the modification results for including the macro topography, chemical composition and microhardness in different depths of the Cu surface are analyzed. In order to estimate the modification results in different areas of the Cu foil, several points from the center to the edge of the Cu sample are selected. It could be observed that the maximal modification effect usually appears in the area where the density of the diffuse discharge plasma is highest. The experimental results show REP DD treatment could significantly decrease the water contact angle and increase surface energy of the Cu foil. Meanwhile, it could decrease the carbon concentration and increase oxygen concentration in the near-surface layer of the Cu sample, and enhance the microhardness in different depths of the Cu foil.",
keywords = "Atmospheric pressure, nanosecond pulse discharge, plasma treatment, runaway electrons preionized diffuse discharge, surface microhardness enhancement, surface modification of copper",
author = "Cheng Zhang and Erofeev, {Mikhail V.} and Zhi Fang and Shulepov, {Mikhail A.} and Zhongsheng Zhou and Tarasenko, {Victor Fedotovich} and Tao Shao",
year = "2016",
month = "6",
day = "1",
doi = "10.1017/S0263034616000033",
language = "English",
volume = "34",
pages = "202--209",
journal = "Laser and Particle Beams",
issn = "0263-0346",
publisher = "Cambridge University Press",
number = "2",

}

TY - JOUR

T1 - Modification of copper surface by runaway electrons preionized diffuse discharges at atmospheric pressure

AU - Zhang, Cheng

AU - Erofeev, Mikhail V.

AU - Fang, Zhi

AU - Shulepov, Mikhail A.

AU - Zhou, Zhongsheng

AU - Tarasenko, Victor Fedotovich

AU - Shao, Tao

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Runaway electrons preionized diffuse discharge (REP DD) could generate volume non-thermal plasmas at atmospheric pressure, thus is widely used for surface modification. In this paper, two pulsed generators are used to produce REP DD for modifying copper (Cu) foil in atmospheric air. One generator produces repetitive pulses with a peak voltage of 40 kV and a rise time of 150 ns. The other generator produces single pulse with a peak voltage of 280 kV and a rise time of 0.5 ns. After the treatment, the modification results for including the macro topography, chemical composition and microhardness in different depths of the Cu surface are analyzed. In order to estimate the modification results in different areas of the Cu foil, several points from the center to the edge of the Cu sample are selected. It could be observed that the maximal modification effect usually appears in the area where the density of the diffuse discharge plasma is highest. The experimental results show REP DD treatment could significantly decrease the water contact angle and increase surface energy of the Cu foil. Meanwhile, it could decrease the carbon concentration and increase oxygen concentration in the near-surface layer of the Cu sample, and enhance the microhardness in different depths of the Cu foil.

AB - Runaway electrons preionized diffuse discharge (REP DD) could generate volume non-thermal plasmas at atmospheric pressure, thus is widely used for surface modification. In this paper, two pulsed generators are used to produce REP DD for modifying copper (Cu) foil in atmospheric air. One generator produces repetitive pulses with a peak voltage of 40 kV and a rise time of 150 ns. The other generator produces single pulse with a peak voltage of 280 kV and a rise time of 0.5 ns. After the treatment, the modification results for including the macro topography, chemical composition and microhardness in different depths of the Cu surface are analyzed. In order to estimate the modification results in different areas of the Cu foil, several points from the center to the edge of the Cu sample are selected. It could be observed that the maximal modification effect usually appears in the area where the density of the diffuse discharge plasma is highest. The experimental results show REP DD treatment could significantly decrease the water contact angle and increase surface energy of the Cu foil. Meanwhile, it could decrease the carbon concentration and increase oxygen concentration in the near-surface layer of the Cu sample, and enhance the microhardness in different depths of the Cu foil.

KW - Atmospheric pressure

KW - nanosecond pulse discharge

KW - plasma treatment

KW - runaway electrons preionized diffuse discharge

KW - surface microhardness enhancement

KW - surface modification of copper

UR - http://www.scopus.com/inward/record.url?scp=84957796351&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84957796351&partnerID=8YFLogxK

U2 - 10.1017/S0263034616000033

DO - 10.1017/S0263034616000033

M3 - Article

AN - SCOPUS:84957796351

VL - 34

SP - 202

EP - 209

JO - Laser and Particle Beams

JF - Laser and Particle Beams

SN - 0263-0346

IS - 2

ER -