简介:Liquidgasificationphenomenonwasobservableinliquid-soliddielectricbarrierdischarge(DBD)experiments.Startingfromclassicalthermodynamics,thisstudyaimedatfindingtilereasonofliquidgasificationintheDBDexperiments.Fluidstaticsandelectrohydrodynamicswereadoptedtoanalyzethemechanismofphasetransitionfromliquidtogas.TheSumotoeffectwasalsoemployedtovisuallyexplainthechangeinthepressureoffluidduetotheelectricfield.ItwasconcludedfromboththeoreticalanalysisandexperimentthatthechangeinliquidpressurewasakeyfactorcausingliquidtogasifyinDBDconditions.Furthermore,itwasstressedthattheliquidpressurewasaffectedbymanyparametersincludingliquidpermittivity,voltage,electricintensity,sizeofthedischargespaceanduniformityoftheelectricfielddistribution,etc.AllofthemaffectedDBDliquidgasification.Therelatedresultswouldprovideusefultheoreticalevidenceformulti-phaseDBDapplications.
简介:Moleculardynamics(MD)simulationswereperformedtoinvestigateF+continuouslybombardingSiCsurfaceswithenergiesof100eVatdifferentincidentanglesat300K.Thesimulatedresultsshowthatthesteady-stateuptakeofFatomsincreaseswithincreasingincidentangle.Withthesteady-stateetchingestablished,aSi-C-Freactivelayerisformed.ItisfoundthattheetchingyieldofSiisgreaterthanthatofC.IntheF-containingreactionlayer,theSiFspeciesisdominantwithincidentangleslessthan30o.Forallincidentangles,theCFspeciesisdominantoverCF2andCF3.