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The influence of plasma operation parameters on synthesis process of copper particles at atmospheric pressure
Author(s) -
Marascu Valentina,
LazeaStoyanova Andrada,
Stancu Cristian,
Dinescu Gheorghe
Publication year - 2018
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201700091
Subject(s) - vaporization , materials science , plasma , copper , inert gas , atmospheric pressure plasma , jet (fluid) , electrode , atmospheric pressure , condensation , particle size , analytical chemistry (journal) , particle (ecology) , composite material , chemical engineering , metallurgy , chemistry , mechanics , thermodynamics , physics , oceanography , organic chemistry , chromatography , quantum mechanics , engineering , geology
Copper particles, generated using an atmospheric pressure plasma jet (APPJ), are characterized and their generation is studied. The particle synthesis is based on the vaporization/condensation process. In our study, we used a radiofrequency (RF) plasma jet operating in an inert gas and copper bulk metal as source material. The RF power effects on the plasma characteristics are investigated. Correlating the information obtained by optical emission spectroscopy (OES), with visual investigations and with the profilometric electrode surface analyses we identify a RF power threshold when particles starts to be formed. Moreover, the metal vaporization stabilized after a couple of minutes of discharge operation. The influences of RF power over the particles shape, mean size and size distributions are studied.