Investigations on Chemical, Thermal Decomposition Behavior, Kinetics, Reaction Mechanism and Thermodynamic Properties of Aged TATB

• Autorzy: Singh A. , Kaur G. , Sarkar C. , Mukherjee N.

Identyfikatory

DOI

10.22211/cejem/84993

• Języki publikacji: EN

Abstrakty

EN

1,3,5-triamino-2,4,6-trinitrobenzene (TATB) is a kind of insensitive high explosive that can be used as an energetic material in nuclear weapon and space applications. In this work, we have studied the effect of aging on the properties of TATB from a 20 year old lot that had been in direct contact with casing and natural environment conditions. The kinetics was studied using the temperature at the maximum reaction rate (peak) and isoconversional methods from TGA and DTA data obtained at five heating rates under a nitrogen atmosphere. The properties investigated for thermal stability indicate that there is no change in the properties during prolonged exposure in natural environment conditions. The activation energy calculated by the Kissinger method was 179.9 kJ·mol−1 by DTG and the 176.9 kJ·mol−1 by DTA. The experimental results of kinetic analysis obtained by isoconversional methods are in good agreement and very close to each other. In the analysis of reaction mechanisms, the reaction models could be probably best described by a surface contraction mechanism using the Coats-Redfern and Criado methods. The thermodynamic parameters such as Gibbs free energy, enthalpy and entropy of activation were also investigated. The self-accelerating decomposition temperature (TSADT) and critical temperature for thermal explosion (Tb) were also calculated.

Słowa kluczowe

EN

1,3,5-triamino-2,4,6-trinitrobenzene; thermal decomposition; kinetics; thermodynamics

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2018
• Tom: Vol. 15, no. 2
• Strony: 258--282
• Opis fizyczny: Bibliogr. 40 poz., rys., tab

Twórcy

autor

Singh A.

• Terminal Ballistics Research Laboratory, Explosive Group, Sector 30, Chandigarh, India

autor

Kaur G.

• Terminal Ballistics Research Laboratory, Explosive Group, Sector 30, Chandigarh, India

autor

Sarkar C.

• Terminal Ballistics Research Laboratory, Explosive Group, Sector 30, Chandigarh, India

autor

Mukherjee N.

• Terminal Ballistics Research Laboratory, Explosive Group, Sector 30, Chandigarh, India

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).