摘要
利用恒温式量热计测定了3种含铝炸药在不同环境中的爆热,研究了其能量释放规律。结果表明,含铝炸药在真空、空气和纯氧环境中的爆热逐渐增高,固体爆轰产物存在一定差异。3种含铝炸药在纯氧中的爆热基本相当,说明发生了完全燃烧反应。在真空和空气环境中,含细铝粉(中位径12.43μm)的含铝炸药爆热均低于含粗铝粉(中位径74.14μm)的炸药。两种粒度铝粉级配后的含铝炸药,在真空和空气环境中的爆热处于铝粉未级配的炸药爆热之间,原因是没有达到细铝粉先反应、粗铝粉后反应的理想状态。
The heats of detonation of three kinds of aluminized explosives in different environment were measured u- sing an isothermal calorimeter. Their energy release law was studied. The results show that the heats of detonation of explosives are increased gradually in vacuum, air and pure oxygen environment, and the solid detonation products exist certain differences. The heats of detonation of three explosives in pure oxygen environment are equivalent, indicating that a complete combustion reaction for these explosives has happened. In vacuum and air, the heat of detonation of explosives with fine grain-size aluminum powder with a median diameter of 12.43μm is lower than that of explosives with coarse grain-size aluminum powder with a median diameter of 74.14μm. In vacuum and air, the heats of detonation of explosives with two kinds of graded A1 powder are between those of explosives without graded A1 powder and the reason is that it doesntt reach the ideal state of first reaction of fine A1 powder and then reaction of coarse A1 powder.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2014年第2期49-52,54,共5页
Chinese Journal of Explosives & Propellants
基金
国家基础科研专项
关键词
爆轰物理
含铝炸药
爆热
恒温式量热计
铝粉
detonation physics
aluminized explosives
heat of detonation
isothermal calorimeter
aluminum powder
