Premium
Determination of the Initiating Capability of Detonators Containing TKX‐50, MAD‐X1, PETNC, DAAF, RDX, HMX or PETN as a Base Charge, by Underwater Explosion Test
Author(s) -
Klapötke Thomas M.,
Witkowski Tomasz G.,
Wilk Ze,
Hadzik Justyna
Publication year - 2016
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.201500220
Subject(s) - explosive material , chemistry , diluent , analytical chemistry (journal) , standard enthalpy of formation , thermodynamics , materials science , nuclear chemistry , organic chemistry , physics
A comprehensive investigation to determine the initiation power of detonators containing as a base charge the novel explosives: dihydroxylammonium 5,5′‐bis(tetrazolate‐1 N ‐oxide) – TKX‐50, dihydroxylammonium 5,5′‐bis(3‐nitro‐1,2,4‐triazolate‐1 N ‐oxide) – MAD‐X1, pentaerythritol tetranitrocarbamate – PETNC and 3,3′‐diamino‐4,4′‐azoxyfurazan – DAAF in comparison with RDX, HMX and PETN was undertaken. In order to estimate the initiation power of the detonators, the underwater initiating capability test was used. The total energy as a sum of the primary shock wave energy and the bubble gas energy was determined for each of these explosives, by measuring the overpressure of the shock waves generated in water. Moreover, the complete synthesis for novel explosives is presented. The thermal behavior of the explosives was investigated using DSC (differential scanning calorimetry). The gas phase absolute molar enthalpies at 298 K and 10 5 Pa were calculated theoretically using the modified complete basis set method (CBS‐4M; M referring to the use of minimal population localization) with the Gaussian 09 software. Gas phase standard molar enthalpies of formation (Δ H f ° ( g ) ) at 298 K were computed using the atomization energy method. Standard molar enthalpies of formation ( ▵H ( s ) ° ) were calculated using Δ H f ° ( g ) and the standard molar enthalpies of sublimation by applying Trouton’s rule. The Chapman‐Jouguet (CJ) characteristics based on calculated ▵H ( s ) ° values were computed using the EXPLO5 V6.01 thermochemical computer code. For the calculations the theoretical maximum densities and densities obtained during the experiments presented in this work were used.