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Energy Output of Insensitive High Explosives by measuring the detonation products
Author(s) -
Volk F.,
Schedlbauer F.
Publication year - 1993
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.19930180605
Subject(s) - detonation , explosive material , argon , atmospheric pressure , aluminium , volume (thermodynamics) , analytical chemistry (journal) , chemistry , ambient pressure , materials science , enthalpy , mass spectrometry , carbon fibers , chemical engineering , organic chemistry , thermodynamics , composite material , chromatography , oceanography , physics , composite number , engineering , geology
The detonation products of high explosives are dependent on pressure and also on the confinement under which the detonation reaction proceeds. To determine the detonation products of less‐sensitive high explosives, such as TNT/nitroguanidine (NQ) and PBX charges with polybutadiene (PB) binder containing RDX together with or without aluminium (Al), experiments have been performed in a stainless steel chamber with a volume of 1.5 m 3 . These experiments were done under different ambient argon pressures up to 0.3 MPa. Gaseous reaction products were analysed by mass spectrometry and chemiluminescence analysis. Solid reaction products were analyzed measuring the carbon residue or the unreacted aluminium. It was found that the detonation products were highly dependent on the ambient pressure of argon. The most important changes of the reaction products and therefore also of the energy output were found between vacuum and atmospheric pressure of argon. With increasing pressure, H 2 and CO decrease and CO 2 , H 2 O, C s , NH 3 , HCN and CH 4 increase together with the reaction enthalpy. By analysing the physical structure of the carbon residue, diamonds have been observed between 4 nm and 7 nm in diameter.