About this Journal Submit a Manuscript Table of Contents
Journal of Nanomaterials
Volume 2013 (2013), Article ID 864985, 8 pages
http://dx.doi.org/10.1155/2013/864985
Research Article

Effect of Nano-Magnesium Hydride on the Thermal Decomposition Behaviors of RDX

1School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu 210094, China
2Shanghai Engineering Research Center of Magnesium Materials and Application, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received 10 December 2012; Revised 4 February 2013; Accepted 18 February 2013

Academic Editor: Kemin Zhang

Copyright © 2013 Miao Yao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to improve the detonation performance of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) explosive, addictives with high heat values were used, and magnesium hydride (MgH2) is one of the candidates. However, it is important to see whether MgH2 is a safe addictive. In this paper, the thermal and kinetic properties of RDX and mixture of RDX/MgH2 were investigated by differential scanning calorimeter (DSC) and accelerating rate calorimeter (ARC), respectively. The apparent activation energy (E) and frequency factor (A) of thermal explosion were calculated based on the data of DSC experiments using the Kissinger and Ozawa approaches. The results show that the addition of MgH2 decreases both E and A of RDX, which means that the mixture of RDX/MgH2 has a lower thermal stability than RDX, and the calculation results obtained from the ARC experiments data support this too. Besides, the most probable mechanism functions about the decomposition of RDX and RDX/MgH2 were given in this paper which confirmed the change of the decomposition mechanism.