Thermal Decomposition of Hmx: Morphological and Chemical Changes Induced at Slow Decomposition Rates
نویسنده
چکیده
with HMX, performed with a simultaneous thermogravimetric modulated beam mass spectrometry (STMBMS) apparatus, and have created a reaction cycle that captures the physical processes and chemical reactions that control its decomposition. The reaction cycle is based on 9 different physical processes and 7 general chemical reactions that play a significant role in controlling the decomposition of HMX. The reaction cycle captures both the main reaction pathways and the interactions between the various pathways. In addition, we find that these physicochemical processes lead to the emergence of several different types of morphological structures within the HMX particles. These structures emerge during the early stages of the decomposition process and eventually evolve as active components of the rate controlling processes. The development of a mathematical model to characterize the reaction cycle and the emergent phenomena is described. THERMAL DECOMPOSITION OF HMX: MORPHOLOGICAL AND CHEMICAL CHANGES INDUCED AT SLOW DECOMPOSITION RATES
منابع مشابه
Carbon cluster formation during thermal decomposition of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine and 1,3,5-triamino-2,4,6-trinitrobenzene high explosives from ReaxFF reactive molecular dynamics simulations.
We report molecular dynamics (MD) simulations using the first-principles-based ReaxFF reactive force field to study the thermal decomposition of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) at various densities and temperatures. TATB is known to produce a large amount (15-30%) of high-molecular-weight carbon clusters, whereas detonation ...
متن کاملSynthesis and characterization of a Bi-Oxide nanoparticle ZnO/CuO by thermal decomposition of oxalate precursor method
In the present work, we report the synthesis of binary nano metal oxides such as Zinc /Copper Oxide via novel dry synthetic methods such as thermal decomposition of oxalate precursor. The synthesis route involves facile solid-phase mechanochemical activation of a physical mixture of simple copper/zinc salts and oxalic acid, followed by calcination of the as-ground oxalate precursors at 450◦C. X...
متن کاملبررسی اثر اندازه و شکل پودر آلومینیوم نانو ساختار بر تجزیه حرارتی PBX بر پایه HMX
In this research, the effects of the particle size and shape of aluminum powder on the kinetics and thermodynamic properties of HMX thermal decomposition in a PBX formulation were investigated. Nano-structured aluminum powder has flaked shape and thickness of about 20-30 nm. Kinetics and thermodynamic parameters were calculated by both Kissinger and Flynn-Wall-Ozawa (FWO) methods based on diffe...
متن کاملSynthesis and characterization of a Bi-Oxide nanoparticle ZnO/CuO by thermal decomposition of oxalate precursor method
In the present work, we report the synthesis of binary nano metal oxides such as Zinc /Copper Oxide via novel dry synthetic methods such as thermal decomposition of oxalate precursor. The synthesis route involves facile solid-phase mechanochemical activation of a physical mixture of simple copper/zinc salts and oxalic acid, followed by calcination of the as-ground oxalate precursors at 450◦C. X...
متن کاملKinetic Study and Thermal Decomposition Behavior of Magnesium-Sodium Nitrate Based on Hydroxyl-Terminated Polybutadiene
This paper has been utilizing the simultaneous ThermoGravimetric analysis and Differential Scanning Calorimetry (TG–DSC) to investigate the thermal decomposition of magnesium-sodium nitrate pyrotechnic composition based HTPB resin. The thermal behaviors of different samples with various fuel-oxidizer ratio contents were determined. Decomposition kinetic was investigated by evaluating the in...
متن کامل