Science and Technology of Energetic Materials

Vol.60, No.1 (1999)

Research paper

A study on closed pressure vessel test
The effect of heat rate, sample weight and vessel size on pressure rise due to thermal decomposition(*in Japanese)
Kenji Aoki, Yoshiaki Akutsu, Mitsuru Arai, and Masamitsu Tamura


We have attempted to devise a new closed pressure vessel test apparatus in order to evaluate the violence of thermal decomposition of self-reactive materials and have examined some influencing factors, such as heat rate, sample weight, filling factor (sample weight / vessel size) and vessel size on Pmax(maximum pressure rise) and dP / dt(rate of pressure rise) due to their thermal decomposition.
As a result, the following decreasing orders of Pmax and dP / dt were shown.
Pmax : ADCA > BPZ > AIBN > TCP
dP/dt: AIBN > BPZ > ADCA > TCP
Moreover, Pmax was not almost influenced by heat rate, while dP / dt Increased with an increase in heat rate in the case of BPZ.
Pmax and dP / dt increased with an increase in sample weight and the degree of increase depended on the kinds of materials.
In addition, it was shown that Pmax and dP / dt increased with an increase in vessel size at a constant filling factor.

> Full text (Open access*)

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