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ElectricBurstCharacteristicofExplodingFoilbeforeandafterAging
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DUZhenhua ,SUN Xinshen,ZHANG Rui,LIFang ,FUDongxiao ,MA Hongliang 1
(1.NationalKeyLaboratoryofAppliedPhysicsandChemistry,ShaanxiAppliedPhysicsandChemistryResearchInstitute,Xi′an710061,China;
2.TheRocketForceEquipmentAcademy,Beijing100085,China)
Abstract:Inordertostudythestoragecharacteristicofexplodingfoils,theacceleratedlifetestathightemperatureof90℃ and
hightemperatureandhumidityof80℃,RH 95% werecarriedout.Theappearance,morphology,burstcharacteristicandflyer
velocitywerestudiedbyphotograph,SEM,firetestandphotonicdopplervelocimetry(PDV)method.Resultsshow thatafterag
ingat80℃,RH95%,thesurfaceofexplodingfoilisoxidized,andthesurfacecolorchangessignificantlyduetotheClelement
andhumidity,andtheaverageresistanceobviouslyincreasesfrom 30.3mΩ(beforeaging)to66.8mΩ(afteraging).Thereisno
remarkableinfluencesofhightemperature(90℃)onburstcurrent,burstvoltageandexplosiontimeofexplodingfoil.Whilethe
burstvoltageandexplosiontimesignificantlydecreaseafteragingat80℃,RH95%.Theperformanceofexplodingfoiladhesion
topolyimidefilm becomespoorafteraging.ThePDVtestresultsshow thatwiththeincreasingofaccelerationtime,theflyerve
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locitydecreasesfrom 3600m·s to2100m·s at90℃ and1200m·s at80℃,RH 95%.Theabilitytodriveslapperde
creasesafteraging.Thestorageconditionofhightemperatureandhumidityhasastrongereffectonflyervelocitythanthatofhigh
temperature.
Keywords:initiator;explodingfoil;aging;electricburstcharacteristic;flyervelocity
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CLCnumber:TJ45 2;O59 Documentcode:A DOI:10.11943/j.issn.10069941.2016.05.009
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