Analysis of conditions for determining the thermophysical characteristics of energetic materials by the laser pulse method

G. V. Kuznetsov, M. D. Katz

Research output: Contribution to journalArticle

Abstract

An analysis of conditions for determining the thermophysical characteristics of energetic materials by the laser pulse method is performed. Based on the results of numerical solution of the heat conduction problems for a sample of a material irradiated with a short heating laser pulse corresponding to actual experimental conditions, the time dependences on the sample surface temperature are determined. The heat pulse duration required to determine the thermophysical properties of materials and the ignition delay time are compared. It is shown that the determination of the thermophysical characteristics of a typical energetic material by the laser pulse method is possible at pulse durations of no longer than 0.24 s.

Original languageEnglish
Pages (from-to)978-982
Number of pages5
JournalRussian Journal of Physical Chemistry B
Volume10
Issue number6
DOIs
Publication statusPublished - 1 Nov 2016

Fingerprint

Laser pulses
pulse duration
pulses
lasers
laser heating
thermophysical properties
conductive heat transfer
ignition
surface temperature
time dependence
time lag
Heat conduction
Ignition
heat
Time delay
Thermodynamic properties
Temperature

Keywords

  • energetic materials
  • laser pulse method
  • numerical solution
  • pulse duration
  • sample thickness
  • thermophysical characteristics

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "An analysis of conditions for determining the thermophysical characteristics of energetic materials by the laser pulse method is performed. Based on the results of numerical solution of the heat conduction problems for a sample of a material irradiated with a short heating laser pulse corresponding to actual experimental conditions, the time dependences on the sample surface temperature are determined. The heat pulse duration required to determine the thermophysical properties of materials and the ignition delay time are compared. It is shown that the determination of the thermophysical characteristics of a typical energetic material by the laser pulse method is possible at pulse durations of no longer than 0.24 s.",
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N2 - An analysis of conditions for determining the thermophysical characteristics of energetic materials by the laser pulse method is performed. Based on the results of numerical solution of the heat conduction problems for a sample of a material irradiated with a short heating laser pulse corresponding to actual experimental conditions, the time dependences on the sample surface temperature are determined. The heat pulse duration required to determine the thermophysical properties of materials and the ignition delay time are compared. It is shown that the determination of the thermophysical characteristics of a typical energetic material by the laser pulse method is possible at pulse durations of no longer than 0.24 s.

AB - An analysis of conditions for determining the thermophysical characteristics of energetic materials by the laser pulse method is performed. Based on the results of numerical solution of the heat conduction problems for a sample of a material irradiated with a short heating laser pulse corresponding to actual experimental conditions, the time dependences on the sample surface temperature are determined. The heat pulse duration required to determine the thermophysical properties of materials and the ignition delay time are compared. It is shown that the determination of the thermophysical characteristics of a typical energetic material by the laser pulse method is possible at pulse durations of no longer than 0.24 s.

KW - energetic materials

KW - laser pulse method

KW - numerical solution

KW - pulse duration

KW - sample thickness

KW - thermophysical characteristics

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