A Study on Thermal Decomposition of RDX According to the Size using TGA

Bum, Kil-Ho; Kim, Seung-Hee; Kim, Jin-Seuk

doi:2012.15.1.81

J. KIMS Technol > Volume 15(1); 2012 > Article

Journal of the Korea Institute of Military Science and Technology 2012;15(1):81-85.
DOI: https://doi.org/10.9766/KIMST.2012.15.1.081

A Study on Thermal Decomposition of RDX According to the Size using TGA

Kil-Ho Bum, Seung-Hee Kim, Jin-Seuk Kim

TGA를 이용한 RDX의 입자 크기에 따른 열적 분해 특성 연구

범길호, 김승희, 김진석

국방과학연구소 4기술연구본부 2부 고폭화약 연구팀

Abstract

This work is related to study the thermal decomposition of 1,3,5-trinitro-1,3,5-triazacylohexane(RDX) by differential scanning calorimeter and thermo-gravimetry with Kissinger's & Iso-conversional method under nonisothermal conditions, with heating rate from 2 to $8^{circ}C$/min or given heating rate. We calculated and compared activation energy with these two methods. Iso-conversional method is better than Kissinger's method to study decomposition mechanism. We also investigated activation energy and frequency factor by Kissinger's & Iso-conversional method with the influence of particle size. In case of single crystal, Cl-3(large crystal) has better thermal stability than Cl-5(small crystal). The activation energy increased according to the size of the particle size.

Key Words: Pre-exponnential Factor, Frequency Factor, Autoacceleration