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Burning Characteristics and Sensitivity Characteristics of Some Guanidinium 1,5′‐ bis ‐1H‐Tetrazolate/Metal Oxide Mixtures as Candidate Gas Generating Agent
Author(s) -
Date Shingo,
Sugiyama Takumi,
Itadzu Norikazu,
Nishi Shizuka
Publication year - 2011
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.201000029
Subject(s) - metal , oxide , autoignition temperature , stoichiometry , analytical chemistry (journal) , ignition system , electric spark , chemistry , materials science , inorganic chemistry , combustion , electrode , chromatography , organic chemistry , thermodynamics , physics
Burning characteristics and sensitivity characteristics of some stoichiometric ratio guanidinium 1,5′‐ bis ‐1H‐tetrazolate (G15B)/metal oxide mixtures were examined. The linear burning rates of the G15B/CuO mixture were higher compared to other G15B/metal oxide mixtures and 5‐amino‐1H‐tetrazole(5‐ATZ)/Sr(NO 3 ) 2 mixture, although the average rate of pressure rise during the closed vessel test was lower compared to 5‐ATZ/Sr(NO 3 ) 2 mixture. The temperature rise for both G15B/CuO and G15B/MnO 2 mixtures was considerably lower than that of 5‐ATZ/Sr(NO 3 ) 2 mixture. G15B/Fe 2 O 3 mixture was the most insensitive among G15B/metal oxide mixtures during the drop hammer test, while G15B/CuO mixture was the second most insensitive. All G15B/metal oxide mixtures were insensitive against friction and electric spark discharge (ESD). Four seconds ignition temperature for G15B/CuO mixture was over 100 K lower than that of 5‐ATZ/Sr(NO 3 ) 2 mixture, but the apparent activation energy for ignition was higher. Among the G15B/metal oxide mixtures studied, G15B/CuO mixture showed the fastest burning rate, while it showed a relatively low temperature rise and low sensitivity. G15B/ZnO did not burn at all.