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Thermal Stability of Explosive Mixture with Additives at Different Ambient Temperatures
Author(s) -
Nassim Bouras,
Zhang Qi
Publication year - 2018
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.201700204
Subject(s) - explosive material , ignition system , materials science , thermal stability , ambient pressure , sulfuric acid , phase (matter) , adiabatic flame temperature , chemical engineering , thermodynamics , analytical chemistry (journal) , chemistry , combustion , chromatography , metallurgy , organic chemistry , engineering , combustor , physics
Thermal stability of explosive mixture containing solid‐liquid phase of trinitrohexahydrotriazine (RDX), isopropyl nitrate (IPN, 2‐propyl nitrate) and aluminum powder (Al) with addition of different rates of 5 %, 10 %, 15 % and 20 % of sulfuric acid H 2 SO 4 to the (RDX/IPN/Al) mixture was measured based on numerical simulation. Kissinger, equation of state (EOS) method and Maxwell approximation were used to compute the physic‐chemical characteristics of the mixture. We add an amount of acid to present a new explosive component. To obtain the ignition temperature, Cookoff model of cylindrical test is performed. The heating process of mixture at different ambient temperatures was progressed, and the ignition temperature was found that it depends on both acid rate added and different ambient temperatures applied and focused by SADT analysis. Temperature distributions over time, different ambient temperatures effect on ignition delay time, ignition position are carried out.