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Title: Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm

Abstract

TATB-based explosives have been investigated on length scales spanning several orders of magnitude, from just under 10 nm to larger than 1 cm. This has been accomplished using a combination of ultra-small angle x-ray scattering (USAXS), ultra-small angle neutron scattering (USANS), and x-ray computed tomography (XRCT). USAXS determines distributions the smallest structures including hot-spot voids from hundreds of nanometers to a few microns, USANS extends this range to about 10 microns, and two variants of XRCT cover sizes from microns to centimeters. Several examples are presented for LX-17, a triaminotrinitrobenzene based plastic bonded explosive using Kel-F 800. As an extension of previous USAXS results, in these proceedings, an alternate binder results in a more uniform microstructure for the PBX, useful towards design of next-generation TATB-based explosives. These data are an important step to understanding microstructural mechanisms that affect the mechanical properties of TATB-based explosives, and provide complete a comprehensive characterization of the structure of LX-17 from nanometers to centimeters that can be used as empirical input to computational models of detonation, and in determining the relationship between voids and microstructure to detonation properties.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
965958
Report Number(s):
LLNL-PROC-411719
TRN: US200921%%547
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 40th International Annual Conference of ICT, Karlsruhe, Germany, Jun 23 - Jun 26, 2009
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BINDERS; COMPUTERIZED TOMOGRAPHY; DESIGN; EXPLOSIONS; EXPLOSIVES; KEL-F; MECHANICAL PROPERTIES; MICROSTRUCTURE; NEUTRONS; PLASTICS; SCATTERING

Citation Formats

Willey, T M, and Overturf, G. Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm. United States: N. p., 2009. Web.
Willey, T M, & Overturf, G. Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm. United States.
Willey, T M, and Overturf, G. 2009. "Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm". United States. https://www.osti.gov/servlets/purl/965958.
@article{osti_965958,
title = {Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm},
author = {Willey, T M and Overturf, G},
abstractNote = {TATB-based explosives have been investigated on length scales spanning several orders of magnitude, from just under 10 nm to larger than 1 cm. This has been accomplished using a combination of ultra-small angle x-ray scattering (USAXS), ultra-small angle neutron scattering (USANS), and x-ray computed tomography (XRCT). USAXS determines distributions the smallest structures including hot-spot voids from hundreds of nanometers to a few microns, USANS extends this range to about 10 microns, and two variants of XRCT cover sizes from microns to centimeters. Several examples are presented for LX-17, a triaminotrinitrobenzene based plastic bonded explosive using Kel-F 800. As an extension of previous USAXS results, in these proceedings, an alternate binder results in a more uniform microstructure for the PBX, useful towards design of next-generation TATB-based explosives. These data are an important step to understanding microstructural mechanisms that affect the mechanical properties of TATB-based explosives, and provide complete a comprehensive characterization of the structure of LX-17 from nanometers to centimeters that can be used as empirical input to computational models of detonation, and in determining the relationship between voids and microstructure to detonation properties.},
doi = {},
url = {https://www.osti.gov/biblio/965958}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 26 00:00:00 EDT 2009},
month = {Thu Mar 26 00:00:00 EDT 2009}
}

Conference:
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