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Ignition and Combustion Behaviors of High Energetic Polyhedral Boron Cluster
Author(s) -
Li Shengji,
Pan Xinxin,
Jiang Yukun,
Chang Shuhang,
Jin Xiao,
Yang Yanjing,
Huang Xuefeng,
Guo Yanhui
Publication year - 2019
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201800389
Subject(s) - ignition system , combustion , propellant , laser ignition , materials science , decomposition , cluster (spacecraft) , analytical chemistry (journal) , chemistry , thermodynamics , physics , organic chemistry , computer science , programming language
Compounds containing [B 10 H 10 ] 2− cluster are promising candidates that can be used as high energetic fuels and burning rate modifiers for propellants. The ignition and combustion behaviors of [N(C 2 H 5 ) 4 ] 2 B 10 H 10 were investigated using a laser ignition system in air. Results show that [N(C 2 H 5 ) 4 ] 2 B 10 H 10 (∼2.0 mm) is ignited with a delay of around 350 ms and threshold ignition energy of 0.7 J at laser ignition power density of 1.14×10 7 W/m 2 . Furthermore, the combustion of [N(C 2 H 5 ) 4 ] 2 B 10 H 10 in air is found to undergo three stages of decomposition, incomplete combustion of the volatile pyrolytic products, and ejection and combustion of the molten dehydrogenated framework, giving massive smoke and a characteristic pyrotechnic flame.