纳米TATB微结构与复合物冲击起爆阈值间的关系

谯志强; 聂福德; 杨光成; 张娟

doi:10.11883/1001-1455(2010)01-0075-05

纳米TATB微结构与复合物冲击起爆阈值间的关系

doi: 10.11883/1001-1455(2010)01-0075-05

1.
中国工程物理研究院化工材料研究所,四川绵阳621900

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通讯作者:
谯志强

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出版历程
- 刊出日期: 2010-01-25

Relationshipbetweenmicrostructuresofnano-TATB andshockinitiationthresholdsofitscomposites

1.
InstituteofChemicalMaterials,ChinaAcademyofEngineeringPhysics,

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Corresponding author: QIAO Zhi-qiang

摘要

摘要: 采用电爆炸箔驱动飞片加载方式,测试了纳米TATB与某敏感炸药复合体系的50%冲击起爆电压阈值,讨论了TATB微观结构参数与复合物冲击起爆阈值之间关系的几种观点。采用造型粉数学建模-表面形貌表征-冲击起爆阈值实验验证的方法,探讨了复合体系的起爆机制。结果表明:复合体系中各组分的分布方式与纳米网格TATB聚集体尺寸大小密切相关,决定了复合物中敏感炸药所受短脉冲作用的压力大小和时间长短,这可能是导致50%起爆阈值变化的关键因素。
- 爆炸力学 /
- 起爆阈值 /
- 造型粉模型 /
- 纳米TATB /
- 微观结构 /
- 短脉冲
Abstract: Theshockinitiationthresholdundertheconditionof50%initiationprobabilitywasmeasuredforthecomposites, whichwerecomposedofnano-TATBandonesensitiveexplosive,underthe impactofathinplasticflayerplateacceleratedbyelectricallyexplodingfoils.Severalviewpointswere discussedontherelationshipbetweenthemicrostructuralparametersofnano-TATBandtheshockinitiationthresholdofitscomposites. Numericalmodelingofgranulatingprocesses,topographycharacterizationofmoldingpowdersurfacesandshockinitiationthresholdtestswerecarriedouttoexplore thedetonationprocessofthecompositeexplosive.Researchedresultsindicatethatthedistributionof sensitiveexplosiveparticlesonthesurfaceofcompositesmoldingpowderandthesizeofnano-gridding- TATBconglomerationmaybethemostimportantfactorofdeterminingtheshort-pulsepress andtimeactingonthesensitiveexplosiveparticles.
- mechanicsofexplosion /
- shockthreshhold /
- numericalmodelingofgraulatingprocess /
- nano-TATB /
- microstructure /
- short-pulseshock

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