Influences of particle size and content of RDX on burning characteristics of RDX-based propellant

Naya, Tomoki; Kohga, Makoto

doi:10.1016/j.ast.2013.12.004

Cited by 54 publications

(20 citation statements)

References 25 publications

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“…The thermal stability of the NC-TEGDN-RDX propellant with different mass fraction CNFs at a heating rate of 10 8C min À1 and 20 8C min À1 are characterized by DSC and shown in Figure 4 and Table 2. According to Figure 4a, one decomposition peak, caused by thermal decomposition of the composites, is observed at 10 8C·min À1 , while there are two decomposition peaks in Figure 4b at 20 8C·min À1 including a main decomposition peak and the other small peak (box in image) due to decomposition of pure RDX at 250 8C [7]. What makes the different is that the pyrolysis of NC in the propellant is highly dependent on the heating rate [38].…”

Section: Dsc Testingmentioning

confidence: 99%

“…Gun propellants composed of oxidizers, binders and plasticizers are widely used in a variety of conventional gun and artillery fields [1][2][3][4][5]. Cyclotrimethylenetrinitramine (RDX)based gun propellants is a typical highly energetic propellants which are made of nitrocellulose (NC), triethylene glycol dinitrate (TEGDN) and RDX [6][7][8]. The specific energy value of RDX is higher than that of hexanitrohexaazaisowurtzitane (CL-20) which shows a higher temperature and heat of explosions [9].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Carbon Nanofibers on Thermal and Mechanical Properties of NC‐TEGDN‐RDX Triple‐Base Gun Propellants

Shen

Liu

et al. 2018

Propellants Explo Pyrotec

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Triple‐base gun propellants composed of nitrocellulose (NC), triethylene glycol dinitrate (TEGDN) and cyclotrimethylenetrinitramine (RDX) with carbon nanofibers (CNFs) were studied to explore the effects of CNFs on the thermal and mechanical properties. The results indicated that CNFs with less than 0.50 wt % were evenly and randomly dispersed in the propellant, otherwise there existed obvious aggregation. Temperatures of initial decomposition and exothermic peak reduced with the increase of NCFs from 0.00 to 3.00 wt %. Decomposition enthalpy of the composites with 0.50 wt % NCFs was 1214.6 J g−1, increased by ∼131.4 J g−1 compared to that of NC‐TEGDN‐RDX propellants. Moreover, the mechanical properties were effectively tailored by varying the amount of CNFs added to the composition. Decomposition enthalpy of the propellant with 0.25 wt % CNFs were hardly compromised for achieving enhancement in the compressive and impact properties, while the tensile strengths decreased slightly compared to that of the propellants.

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Section: Dsc Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Carbon Nanofibers on Thermal and Mechanical Properties of NC‐TEGDN‐RDX Triple‐Base Gun Propellants

Shen

Liu

et al. 2018

Propellants Explo Pyrotec

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“…But adding RDX produces many problems, such as higher mechanical sensitivity and worse mechanical properties [7][8][9][10]. Previous research has shown that reducing the size of solid filler particles can solve these problems and also enhance the burning rate of propellants [11][12][13][14]. In addition, the mechanical sensitivity of CMDBs can be decreased if the particles coated with some binders [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of RDX-Nitrocellulose Microspheres

Wang¹,

Shi²,

Li³

2016

Cent. Eur. J. Energ. Mater.

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Abstract:A new insensitive explosive based on RDX and with Nitrocellulose (NC) as binder has been prepared using a flash vaporization process. Scanning electron microscopy was used to characterize the morphology and particle size of the resulting RDX-NC microspheres. X-ray photoelectron spectroscopy, Differential Scanning Calorimetry, impact sensitivity, vacuum stability and burning rate of raw RDX, RDX-NC and RDX-1 were also used to characterize the explosive. The RDX-NC microspheres were found to have a fibrous surface. The microspheres ranged in size from 0.5 μm to 4 μm. The NC formed a coat on the surface of the RDX. The activation energies of raw RDX, RDX-1 and RDX-NC were found to be 200.8 kJ·mol , respectively. The drop heights of raw RDX, RDX-1 and RDX-NC were found to be 21.3 cm, 51.7 cm and 82.9 cm, respectively. The friction sensitivity of RDX-NC was lower than that of raw RDX and RDX-1. In the vacuum stability test, the volumes of evolved gas from raw RDX, RDX-1 and RDX-NC were 0.12 mL·g Keywords: RDX, nitrocellulose, flash vaporization process, thermal stability Nomenclature ListH 50 = 50% explosion probability, S = standard deviation, β i = heating rate in K·min

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“…Studies show that improving the quality of energetic particles can solve the problem of poor safety, such as reducing the particle size 1 , addition of binder in particles 2,3 and spheroidisation 4,5 . Decreasing the size of explosive particles to nano-level can not only reduces the mechanical sensitivity 6 , but also speed up the burning rate 7,8 . However, it has its disadvantage -a reduced shelf life 9 .…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of 1, 3, 5, 7-Tetranitro-1, 3, 5, 7-Tetrazocane-based Nanocomposites

Shi¹,

Wang²,

Li³

et al. 2015

DSJ

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Influences of particle size and content of RDX on burning characteristics of RDX-based propellant

Cited by 54 publications

References 25 publications

Influence of Carbon Nanofibers on Thermal and Mechanical Properties of NC‐TEGDN‐RDX Triple‐Base Gun Propellants

Influence of Carbon Nanofibers on Thermal and Mechanical Properties of NC‐TEGDN‐RDX Triple‐Base Gun Propellants

Preparation and Properties of RDX-Nitrocellulose Microspheres

Preparation and Properties of 1, 3, 5, 7-Tetranitro-1, 3, 5, 7-Tetrazocane-based Nanocomposites

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