Non-ideal explosives can have Chapman-Jouguet (C-J) detonation pressure significantly different from those expected from existing thermodynamic computer codes, which usually allows finding the parameters of ideal detonation of individual high explosives with good accuracy. A simple method is introduced by which detonation pressure of non-ideal aluminized explosives with general formula C(a)H(b)N(c)O(d)Al(e) can be predicted only from a, b, c, d and e at any loading density without using any assumed detonation products and experimental data. Calculated detonation pressures show good agreement with experimental values with respect to computed results obtained by complicated computer code. It is shown here how loading density and atomic composition can be integrated into an empirical formula for predicting detonation pressure of proposed aluminized explosives.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jhazmat.2006.02.048DOI Listing

Publication Analysis

Top Keywords

aluminized explosives
12
detonation pressure
12
non-ideal aluminized
8
loading density
8
detonation
6
explosives
5
determination performance
4
performance non-ideal
4
explosives non-ideal
4
non-ideal explosives
4

Similar Publications

Thermal Decomposition of Core-Shell-Structured RDX@AlH, HMX@AlH, and CL-20@AlH Nanoparticles: Reactive Molecular Dynamics Simulations.

Nanomaterials (Basel)

November 2024

Institute for Computation in Molecular and Materials Science, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

The reactive molecular dynamics method was employed to examine the thermal decomposition process of aluminized hydride (AlH) containing explosive nanoparticles with a core-shell structure under high temperature. The core was composed of the explosives RDX, HMX, and CL-20, while the shell was composed of AlH. It was demonstrated that the CL-20@AlH NPs decomposed at a faster rate than the other NPs, and elevated temperatures could accelerate the initial decomposition of the explosive molecules.

View Article and Find Full Text PDF

In this paper, a series of CL-20 based explosive formulations containing Al/PTFE reactive materials are designed using a self-designed closed explosion test device. The quasi-static pressure (QSP) and peak temperature of the explosive reaction are studied under different mass percentages of Al/PTFE and different charge structures. The composition and morphology of the solid residue products after the explosion were analyzed, proving the feasibility of using Al/PTFE in explosives and providing theoretical support for the design of the aluminized explosive in this system.

View Article and Find Full Text PDF

Adsorption mechanisms of decomposition species of CHON-containing explosives on aluminum surfaces.

Phys Chem Chem Phys

June 2024

Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), P. O. Box 919-311, Mianyang, Sichuan 621900, China.

Article Synopsis
  • Aluminum is a key component in the formulation of aluminized explosives, significantly enhancing their energy performance due to its high combustion enthalpy.
  • The study investigates how the structure of aluminum surfaces and the types of molecules that adhere to them influence the adsorption process during the explosive decomposition of CHON-containing explosives.
  • Findings suggest that a cluster-shaped aluminum surface is more effective for adsorption than a slab-shaped one, and the interaction between aluminum and adsorbed molecules can lead to improved oxidation and energy release efficiency in these explosives.
View Article and Find Full Text PDF
Article Synopsis
  • Aluminized explosives are gaining popularity due to their high heat and power, with aluminum oxides AlO and AlO being key components in their explosion process.
  • Research involves using first-principles calculations to analyze the structures and electronic properties of solid AlO and AlO under pressure.
  • The study finds that as pressure increases, the specific volumes of AlO and AlO decrease significantly, and the electronic properties change notably, indicating important implications for understanding the explosion mechanisms of these materials.
View Article and Find Full Text PDF

Study on the Effect of NTO on the Performance of HMX-Based Aluminized Cast-PBX.

Materials (Basel)

July 2022

School of Materials Science and Engineering, Beijing Institute of Technology, Zhongguancun South Street 5, Beijing 100081, China.

3-Nitro-1,2,4-triazol-5-one (NTO) is an explosive with broad application prospects. To study the effect of NTO content on the properties of HMX-based cast-PBX (polymer bonded explosive), five different HMX/NTO-based cast-PBXs were prepared and characterized by experiments and simulations. The results show that the addition of NTO is beneficial to reduce the mechanical sensitivity of cast-PBX, but will reduce the energy level of cast-PBX.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!