Determination of Kinetic Parameters in the Characterization of Accelerated Aging of PBX (Plastic-Bonded Explosive)

Authors

  • Edemar Kirchhof Instituto Tecnológico de Aeronáutica (ITA)
  • Nanci Miyeko Nakamura Instituto de Aeronáutica e Espaço (IAE)
  • Camila Maria Lapa Instituto de Aeronáutica e Espaço (IAE)
  • Glaci Ferreira Martins Pinheiro Instituto de Aeronáutica e Espaço (IAE)
  • José Atílio Fritz Fidel Rocco Instituto Tecnológico de Aeronáutica (ITA)
  • Koshun Iha Instituto Tecnológico de Aeronáutica (ITA)

DOI:

https://doi.org/10.55972/spectrum.v22i1.298

Keywords:

Acelerated aging, Ozawa method, Kissinger method

Abstract

This paper aims to estimate the aging time and temperature of PBX aging using the Arrhenius equation, equivalent to the storage time at a temperature of 25 °C. The thermal decomposition curves were corrected by the DSC technique (Differential Scanning Calorimetry). The kinetic parameters such as the activation energy and the pre-exponential factor were determined by the Ozawa method and the Kissinger method. Initial results the study pointed out that for a period of 10 years of storage in storeroom or material it did not undergo changes related to aging. For studies of the life of the PBX, accelerated aging at a temperature of 60 °C for a period of five weeks is equivalent to five years of natural aging at 25 °C.

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Published

2021-09-30

How to Cite

[1]
E. Kirchhof, N. Miyeko Nakamura, C. Maria Lapa, G. Ferreira Martins Pinheiro, J. Atílio Fritz Fidel Rocco, and K. Iha, “Determination of Kinetic Parameters in the Characterization of Accelerated Aging of PBX (Plastic-Bonded Explosive)”, Spectrum, vol. 22, no. 1, pp. 59–64, Sep. 2021.

Issue

Vol. 22 (2021): Operational Applications in Defense Areas

Section

Weapons Systems and Space Applications

Categories

License

Copyright (c) 2021 Edemar Kirchhof, Nanci Miyeko Nakamura, Camila Maria Lapa, Glaci Ferreira Martins Pinheiro, José Atílio Fritz Fidel Rocco, Koshun Iha

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