摘要
研究了铝粉粒径对闪光剂辐射强度的影响。利用粒径影响因子对闪光剂燃烧产物中凝聚相粒子的发射率进行了修正。结合铝粉燃烧模型、凝聚相产物发射率和闪光剂爆燃闪光辐射模型,提出了铝粉粒径和闪光剂辐射强度的关系。理论分析得出了闪光剂配方中铝粉粒径越小,其闪光辐射强度越高。测试了由不同粒径铝粉和高氯酸钾组成的二元闪光剂配方(质量比为50/50)及由不同粒径铝粉、高氯酸钾和3%环氧树脂组成的三元闪光剂配方(质量比为50/50/3)的闪光辐射强度,验证了这一结论的正确性。
The emissivity of condensed-phase product particles was corrected by using impact factor of particle size. Combined with combustion model of aluminum, the emissivity of condensed-phase product particles and flash radiation model of pyrotechnic deflagration, the formula relationship between AI particles diameter and radiation intensities of pyrotechnic composite was put forward. It is concluded that the higher radiation intensity is, the smaller aluminum size of flash pyrotechnic composite is. Binary mixtures containing KClO4 and Al with mass ratio of 50 ： 50, and trinary mixtures containing KClO4 , A1 and 3% epoxy with mass ratio of 50 ： 50 ： 3 were prepared, and their radiation intensities were determined experimentally. Results show that there is agreement between the theoretical conclusion and experimental results.
出处
《含能材料》
EI
CAS
CSCD
2008年第2期219-221,共3页
Chinese Journal of Energetic Materials
关键词
军事化学与烟火技术
闪光剂
铝粉
粒径影响因子
辐射强度
military chemistry and pyrotechnic technology
flash pyrotechnic composite
aluminum powder
impact factor of particle size
radiation intensity
