Modification of copper surface by runaway electronspreionized diffuse discharges at atmospheric pressure; Laser and Particle Beams; Vol. 34, iss. 2

Modification of copper surface by runaway electronspreionized diffuse discharges at atmospheric pressure; Laser and Particle Beams; Vol. 34, iss. 2

Bibliographic Details
Parent link:Laser and Particle Beams
Vol. 34, iss. 2.— 2016.— [P. 202-209]
Corporate Authors: Национальный исследовательский Томский политехнический университет Институт природных ресурсов Кафедра геологии и разработки нефтяных месторождений, Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Кафедра промышленной и медицинской электроники
Other Authors: Zhang Cheng, Erofeev M. V. Mikhail Vladimirovich, Fang Zhi, Shulepov M. A., Zhou Zhongsheng, Shao Tao, Tarasenko V. F. Victor Fedotovich
Summary:Title screen
Runaway electrons preionized diffuse discharge (REP DD) could generate volume non-thermal plasmas at atmosphericpressure, thus is widely used for surface modification. In this paper, two pulsed generators are used to produce REPDD for modifying copper (Cu) foil in atmospheric air. One generator produces repetitive pulses with a peak voltage of40 kV and a rise time of 150 ns. The other generator produces single pulse with a peak voltage of 280 kV and a risetime of 0.5 ns. After the treatment, the modification results for including the macro topography, chemical compositionand microhardness in different depths of the Cu surface are analyzed. In order to estimate the modification results indifferent areas of the Cu foil, several points from the center to the edge of the Cu sample are selected. It could beobserved that the maximal modification effect usually appears in the area where the density of the diffuse dischargeplasma is highest. The experimental results show REP DD treatment could significantly decrease the water contactangle and increase surface energy of the Cu foil. Meanwhile, it could decrease the carbon concentration and increaseoxygen concentration in the near-surface layer of the Cu sample, and enhance the microhardness in different depths ofthe Cu foil.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
атмосферное давление
импульсный разряд
плазменная обработка
поверхности
Online Access:http://dx.doi.org/10.1017/S0263034616000033
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648753

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