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, , sz, Õ. E7[\]^?@
SU8 ì3}
EffectofBarrelandMultilayerFlyeronthePerformancesofMicroChipExplodingFoilInitiator
CHEN Kai,XUCong,ZHUPeng,FUShuai,WULizhi,SHEN Ruiqi,YEYinghua
(SchoolofChemicalEngineering,NanjingUniversityofScienceandTechnology,Nanjing210094,China)
Abstract:Theintegratedfabricationofexplodingfoilinitiatorwasrealizedbymicroelectromechanicalsystem manufacturingtech
nology.BridgefoilofCuwith0.4mm× 0.4mm× 4.6μ m(L × W× H)andpoly(monochloropxylylene)(ParyleneC)athicknessof
25μ m/Cuwithathicknessof2μ m multilayerflyerwerepreparedbymagnetronsputteringprocessandchemicalvapordeposition
technology.ThepreparationofSUEXdryfilm barrelwasrealizedbyultravioletlithographytechnology.Threekindsofbarrelswitha
thicknessof0.395mm anddiametersof0.40mm,0.56mm and1.00mm wereobtainedandtheirwallverticalitiesweregood.The
influenceoffiringvoltageandbarrelsizeonthevelocityofmultilayerflyerwerestudiedbyphotonicdopplervelometer(PDV)meas
urementsystem.ThedetonationtestsofHNSexplosiveswerecarriedout.Resultsshow thatthevelocityofthemultilayerflyergradu
allyincreaseswithincreasingthefiringvoltage.Underthesamefiringcondition,onthecontrary,thevelocityofthemultilayerflyer
graduallyincreaseswithdecreasingthediameterofthebarrel,i.e.underthesamefiringcondition,thevelocityofthemultilayerflyer
forthebarrelwithadiameterof0.40mm isthemaximum.ResultsofinitiatingHNSexplosivesrevealthatthefiringvoltagegradually
decreaseswithdecreasingthediameterofthebarrel.Comparedwiththebarrelwithadiameterof1.00mm,thefiringvoltageofbar
relwithadiameterof0.40mm reducesbyabout200Vunderthecapacitordischargeconditionof0.22μ F.
Keywords:barrel;multilayerflyer;microchipexplodingfoilinitiator;firingperformance
CLCnumber:TJ55 Documentcode:A DOI:10.11943/j.issn.10069941.2018.03.012
ChineseJournalofEnergeticMaterials,Vol.26,No.3,2018(273 - 278) !"#$ www.energeticmaterials.org.cn