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Title: Reactive conductors for increased efficiency of exploding foil initiators and other detonators

Abstract

Provided among other things are reactive energetic material systems used for conductors in detonators for increased efficiencies. According to an embodiment, a detonator may include: a conductor including at least two constituents including (i) an electrically conductive constituent, and (ii) an electrically non-conductive constituent, that when subjected to sufficient electrical energy, result in an exothermic reaction; and a flyer plate having a non-conductive surface in contact with said conductor. When the sufficient electrical energy is supplied to said conductor, rapid heating and vaporization of at least a portion of the conductor occurs so as to explosively drive at least a portion of the flyer plate away from said conductor. In an embodiment, a multilayer conductor may be formed of alternating layers of at least one electrically conductive layer, and at least one electrically non-conductive layer, that when subjected to sufficient electrical energy, result in an exothermic reaction.

Inventors:
; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1351796
Patent Number(s):
9021954
Application Number:
13/685,884
Assignee:
The United States of America as represented by the Secretary of the Army (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Nov 27
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats

Morris, Christopher J., Wilkins, Paul, May, Chadd, and Zakar, Eugene. Reactive conductors for increased efficiency of exploding foil initiators and other detonators. United States: N. p., 2015. Web.
Morris, Christopher J., Wilkins, Paul, May, Chadd, & Zakar, Eugene. Reactive conductors for increased efficiency of exploding foil initiators and other detonators. United States.
Morris, Christopher J., Wilkins, Paul, May, Chadd, and Zakar, Eugene. Tue . "Reactive conductors for increased efficiency of exploding foil initiators and other detonators". United States. https://www.osti.gov/servlets/purl/1351796.
@article{osti_1351796,
title = {Reactive conductors for increased efficiency of exploding foil initiators and other detonators},
author = {Morris, Christopher J. and Wilkins, Paul and May, Chadd and Zakar, Eugene},
abstractNote = {Provided among other things are reactive energetic material systems used for conductors in detonators for increased efficiencies. According to an embodiment, a detonator may include: a conductor including at least two constituents including (i) an electrically conductive constituent, and (ii) an electrically non-conductive constituent, that when subjected to sufficient electrical energy, result in an exothermic reaction; and a flyer plate having a non-conductive surface in contact with said conductor. When the sufficient electrical energy is supplied to said conductor, rapid heating and vaporization of at least a portion of the conductor occurs so as to explosively drive at least a portion of the flyer plate away from said conductor. In an embodiment, a multilayer conductor may be formed of alternating layers of at least one electrically conductive layer, and at least one electrically non-conductive layer, that when subjected to sufficient electrical energy, result in an exothermic reaction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {5}
}

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Works referenced in this record:

Rapid initiation of reactions in Al/Ni multilayers with nanoscale layering
journal, February 2010


Effect of intermixing on self-propagating exothermic reactions in Al/Ni nanolaminate foils
journal, February 2000


Joining bulk metallic glass using reactive multilayer foils
journal, June 2003


Deposition and characterization of a self-propagating CuOx/Al thermite reaction in a multilayer foil geometry
journal, September 2003


Investigating the reaction path and growth kinetics in CuOx/Al multilayer foils
journal, September 2003


Process and fabrication of a lead zirconate titanate thin film pressure sensor
journal, January 2001


Effects of physical properties of components on reactive nanolayer joining
journal, June 2005