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Science and Technology of Energetic Materials

Vol.70, No.6 (2009)

Research paper

A study on the combustion of guanidinium 1,5'- bis - 1H -tetrazolate / copper (II) oxide
Shingo Date, Norikazu Itadzu, Takumi Sugiyama, Yasuyoshi Miyata,
Kazuo Iwakuma, Masahiro Abe, Kazuya Yoshitake, Shizuka Nishi,
and Kazuo Hasue
p.152-157

Abstract

The combustion behavior of the guanidinium 1,5'-bis-1H-tetrazolate (G15B)/copper(II) oxide (CuO) mixture, a possible candidate mixture for a gas generating agent, was examined by evaluating the effects of the mixing ratio of G15B/CuO mixtures, the effects of particle size of G15B and the effects of loading pressure for stoichiometric ratio G15B/CuO mixture, together with the measurement of temperature profiles of burning pellet samples during linear burning rate tests for the stoichiometric ratio mixture. The linear burning rate reached the maximum when the oxygen balance was negative (between -15 g/100 g mixture and -20 g/100 g mixture (or - 15% and - 20%)). It was also shown that there was no noticeable effect of the particle size of G15B on the linear burning rate of stoichiometric ratio G15B/CuO mixture while there was a noticeable decrease in the linear burning rate with an increase in the loading pressure. The measurements of temperature profiles of stoichiometric ratio mixture indicated that the surface temperature varies significantly at constant atmosphere pressure and that the temperature generally increased with an increase in atmosphere pressure. It is suggested that the periodical build-up and consumption of decomposition products of G15B in the burning surface may have occurred during the combustion of G15B/CuO mixtures.

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Keywords

Guanidinium 1,5'-bis-1H-tetrazolate, Copper oxide, Combustion behavior, Linear burning rate, Temperature profile

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