Sublimation Properties of Pentaerythritol Tetranitrate Single Crystals Doped with Its Homologs

Bhattacharia, Sanjoy K.; Maiti, Amitesh; Gee, Richard H.; Weeks, Brandon L.

doi:10.1002/prep.201100114

Sublimation Properties of Pentaerythritol Tetranitrate Single Crystals Doped with Its Homologs

Journal Article · Fri Jul 20 04:00:00 EDT 2012 · Propellants, Explosives, Pyrotechnics

DOI:https://doi.org/10.1002/prep.201100114· OSTI ID:1225692

Bhattacharia, Sanjoy K.; Maiti, Amitesh; Gee, Richard H.; Weeks, Brandon L.

Pentaerythritol tetranitrate (PETN) is a secondary explosive used extensively in military and commercial applications. Coarsening of PETN during long-term storage changes the physical properties such as surface area and particle morphology which are important factors in initiation and performance. Doping of impurities was proposed to slow the coarsening process since impurities were shown to modify both the kinetic and thermodynamic properties. In this paper, we discuss how doping of PETN with its homologs of dipentaerythritol hexanitrate (diPEHN) and tripentaerytritol octanitrate (triPEON) affect kinetic and thermodynamic parameters. Pure and homolog doped PETN single crystals were prepared by solvent evaporation in acetone at room temperature. Doping concentrations for this study were 1000 ppm, 5000 ppm, and 10000 ppm. Activation energy and vapor pressure of pure and doped PETN single crystals were obtained from thermogravimetric analysis data.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

OSTI ID:: 1225692

Report Number(s):: LLNL-JRNL--562203

Journal Information:: Propellants, Explosives, Pyrotechnics, Journal Name: Propellants, Explosives, Pyrotechnics Journal Issue: 5 Vol. 37; ISSN 0721-3115

Publisher:: Wiley

Country of Publication:: United States

Language:: English

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