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         ElectricBurstCharacteristicofExplodingFoilbeforeandafterAging


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         DUZhenhua ,SUN Xinshen,ZHANG Rui,LIFang ,FUDongxiao ,MA Hongliang    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
                        +
         CLCnumber:TJ45 2;O59            Documentcode:A                DOI:10.11943/j.issn.10069941.2016.05.009
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         ChineseJournalofEnergeticMaterials,Vol.24,No.5,2016(479-484)  !"#$           www.energeticmaterials.org.cn
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