TY - JOUR
T1 - Discharge characteristics of atmospheric pressure argon/oxygen plasma jet
AU - Yang, Jingru
AU - Fang, Zhi
AU - Qian, Chen
PY - 2014/5
Y1 - 2014/5
N2 - The influence of an addition of oxygen on the discharge characteristics of atmospheric pressure argon plasma was investigated with conventional plasma diagnose tools. Three distinct types of discharge were identified, including the corona discharge, dielectric barrier discharge, and jet discharge of the argon/oxygenplasma. The preliminary results show that the oxygen concentration has a major impact on the jet discharge and reactivity of plasma. For example, as the oxygen concentration increased, the number of current pulse and pulse duration increased; and the jet-length, discharge power, and transported charge decreased. Moreover, most emission peaks were found to decrease with an increase of oxygen concentration, except the OH peak. At an oxygen concentration of 0.5%, the electron excitation temperature was 0.637 eV; and the peak of OH radicals reached its maximum, possibly because of the optimized concentration of highly reactive atomic oxygen.
AB - The influence of an addition of oxygen on the discharge characteristics of atmospheric pressure argon plasma was investigated with conventional plasma diagnose tools. Three distinct types of discharge were identified, including the corona discharge, dielectric barrier discharge, and jet discharge of the argon/oxygenplasma. The preliminary results show that the oxygen concentration has a major impact on the jet discharge and reactivity of plasma. For example, as the oxygen concentration increased, the number of current pulse and pulse duration increased; and the jet-length, discharge power, and transported charge decreased. Moreover, most emission peaks were found to decrease with an increase of oxygen concentration, except the OH peak. At an oxygen concentration of 0.5%, the electron excitation temperature was 0.637 eV; and the peak of OH radicals reached its maximum, possibly because of the optimized concentration of highly reactive atomic oxygen.
KW - Argon-oxygen mixture
KW - Discharge characteristics
KW - Plasma jet
KW - Spectral characteristics
UR - http://www.scopus.com/inward/record.url?scp=84901841908&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1672-7126.2014.05.04
DO - 10.3969/j.issn.1672-7126.2014.05.04
M3 - 文章
AN - SCOPUS:84901841908
SN - 1672-7126
VL - 34
SP - 454
EP - 460
JO - Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology
JF - Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology
IS - 5
ER -