Thermal Analysis and Sensitivity Studies on Guanylurea Dinitramide (GUDN or FOX-12) Based Melt Cast Explosive Formulations

Badgujar, Dilip M.; Talawar, M. B.

doi:10.22211/cejem/68697

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…In line with FOX-7, FOX-12 also decomposed exothermically at 209.2 °C [36] which matches well with the literature. A shift in the decomposition temperature of FOX-12 was observed as the composition of the formulation was changed from 5 to 15 parts.…”

Section: Thermal Analysissupporting

confidence: 89%

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition

Rawal

Kakade

Khanna

2021

Propellants Explo Pyrotec

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The study elucidates the influence of three nitrogen-rich explosives viz., FOX-7, FOX-12, and RS-RDX on the performance of B/KNO 3 /PEC igniter composition. The B/ KNO 3 pyrotechnic igniter compositions with 5, 10 & 15 parts of FOX-7, FOX-12, and RS-RDX were successfully prepared. The compositions were evaluated in terms of surface morphology, heat output, sensitivities, flame temperature, pressure output, ignition delay, time to reach P max (BTP max ), and thermal analysis. The closed vessel firing data indicated higher P max value and lower BTP max for FOX-12 and FOX-7 based composition. The addition of FOX-12 and FOX-7 also reduces the decomposition temperature of B/KNO 3 composition without affecting friction and spark sensitivities. The composition having 15 parts RSRDX is the most insensitive to impact among all. Therefore, the addition of insensitive high explosives like RS-RDX, FOX-7and FOX-12 is useful to improve the performance of the igniter composition to achieve low BTP max and increased pressure output. Optimum performance is exhibited by RS-RDX-based compositions.

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Section: Thermal Analysissupporting

confidence: 89%

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition

Rawal

Kakade

Khanna

2021

Propellants Explo Pyrotec

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“…By virtue of a lower sensitivity, non-hygroscopicity, and thermal stability, FOX-12 is considered to be a promising candidate for use in low sensitivity propellants and insensitive munition explosives. − Researchers have conducted preliminary evaluations on the combustion characteristics and energy performance of multicomponent propellants containing FOX-12. FOX-12 was applied to the composite modified double base propellant formulation, and the process safety of the propellant was evaluated: the actual formula showed a good combustion performance, and the pressure exponent met the requirements of engineering application .…”

Section: Introductionmentioning

confidence: 99%

Catalytic Effect of Ferrocenyl Energetic Catalysts for N-Guanylurea Dinitramide (GUDN or FOX-12) Decomposition

Jiang¹,

Fu²,

Jiang³

et al. 2022

ACS Omega

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Four N , N -dimethylaminomethylferrocene polynitrogen catalysts were applied to the thermal decomposition of FOX-12, and their catalytic effect on FOX-12 was investigated by TG-DSC. The kinetic parameters and kinetic model of the mixed system were revealed by the Kissinger method, Freidman method, and combined kinetic analysis. The results showed that MAFcTAZ is the catalyst with the strongest effect on FOX-12, the decomposition peak temperature of FOX-12 is reduced, and the decomposition weight loss is higher than those for other catalysts, which prove that the decomposition of FOX-12 is more thorough under the catalysis of MAFcTAZ. The introduction of the four catalysts reduced the thermal decomposition peak temperature of FOX-12. MAFcTAZ was the most active catalyst for the decomposition of FOX-12, and the maximum heat release of catalyzing the decomposition of FOX-12 can reach 1236.76 J·g –1 . The activation energy ( E a ) of FOX-12 decomposition decreased from 217.91 to 128.19, 137.85, 157.65, and 151.91 kJ·mol –1 under the effect of MAFcNO 3 , MAFcPA, MAFcNTO, and MAFcTAZ. The Freidman analysis illustrated that MAFcTAZ reduced the activation energy during the entire decomposition process of FOX-12. The physical model of the decomposition reaction of FOX-12 transformed from the random nucleation and two-dimensional growth of nuclei model (A2) to the random scission model (L2) in the presence of MAFcNO 3 and two-dimensional diffusion (D2) under the effect of MAFcPA, MAFcNTO, and MAFcTAZ. By analyzing the molecular structures, MAFcTAZ has a higher iron content and nitrogen content, which are the essence of its excellent catalytic performance. From the perspective of interaction energy, the strong catalytic effect of MAFcTAZ is attributed to its large interaction energy with FOX-12 by energy decomposition analysis.

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“…It has interesting properties as a high explosive and also finds application in the GUDN is an insensitive energetic ingredient for insensitive munitions, such as LOVA propellants for artillery modular charges, the main component in warhead fillings like general purpose bombs, artillery, tank and mortar ammunition. The use of powerful, safer and eco-friendly explosives is the main criteria of ammunitions during propellant formulations [36]. GUDN is a low vulnerability energetic material, to impact and friction stimuli and is a good candidate for IM [37].…”

Section: Introductionmentioning

confidence: 99%

Review on Promising Insensitive Energetic Materials

Badgujar¹

2017

Cent. Eur. J. Energ. Mater.

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During the last twenty years military explosives, and energetic materials in general, have changed significantly. Worldwide, research and development programs are active in developing promising insensitive HEMs with higher performance. This has been due to several factors, which include new operational requirements such as Insensitive Munitions (IM), but it is also due to the availability of new materials and to new assessment and modelling techniques. The present review focuses on the basic idea and necessity for IM, and the conditions, technical requirements and tests for IM. The review also explains the various promising insensitive high explosives, their synthesis and formulation used in different propellants.

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Thermal Analysis and Sensitivity Studies on Guanylurea Dinitramide (GUDN or FOX-12) Based Melt Cast Explosive Formulations

Cited by 6 publications

References 4 publications

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition

Catalytic Effect of Ferrocenyl Energetic Catalysts for N-Guanylurea Dinitramide (GUDN or FOX-12) Decomposition

Review on Promising Insensitive Energetic Materials

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Thermal Analysis and Sensitivity Studies on Guanylurea Dinitramide (GUDN or FOX-12) Based Melt Cast Explosive Formulations

Cited by 6 publications

References 4 publications

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO3 Composition

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO3 Composition

Catalytic Effect of Ferrocenyl Energetic Catalysts for N-Guanylurea Dinitramide (GUDN or FOX-12) Decomposition

Review on Promising Insensitive Energetic Materials

Contact Info

Product

Resources

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Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO₃ Composition