Science and Technology of Energetic Materials

Vol.61, No.1 (2000)


The reactivity of magnesium - oxidizing agent pyrolants
Hidetsugu Nakamura, Miyako Akiyoshi, and Yasutake Hara


A "Pyrolant" is a mixture which consist of a metal fuel and an oxidizing agent functioning as both a propellant and a pyrothenic and which undergoes a reaction evolving high energy and a large amount of gas at high temperature. In this report, the thermal reaction and the combustoon of the magnesium - containing pyrolants, which are mixtures of magnesium with oxidizing agents, were studied by thermal analysis, analysis ofcombustion residues, burning rate measurements and visual observation of combustion. The results obtained are as follows:
The themal reactivity of a magnesium - containing pyrolant varies considerably with the species of oxidizing agent. The magnesium - ammonium nitrate pyrolant was very thermally reactive and the magnesium - potassium nitrate pyrolant caused an exothermic reaction at a higher temperature of about 450 ℃. However, the linear burning rate of magnesium - potassium nitrate was about 6 times as fast as that of the magnesium - ammonium nitrate or ammonium perchlorate pyrolant. Therefore, no apparent relation was found between the thermal reactivity and the buming rate.

> Full text (Open access*)

© Copyright 1999-2017 Japan Explosives Society. All right reserved.