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

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:
OSTI Identifier:
1351796
Assignee:
The United States of America as represented by the Secretary of the Army (Washington, DC) LLNL
Patent Number(s):
9,021,954
Application Number:
13/685,884
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2012 Nov 27
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Other works cited in this record:

Nano-laminate-based ignitors
patent, May 2011

Rapid initiation of reactions in Al/Ni multilayers with nanoscale layering
journal, February 2010
  • Morris, Christopher J.; Mary, Brian; Zakar, Eugene
  • Journal of Physics and Chemistry of Solids, Vol. 71, Issue 2, p. 84-89
  • DOI: 10.1016/j.jpcs.2009.07.026

Effect of intermixing on self-propagating exothermic reactions in Al/Ni nanolaminate foils
journal, February 2000
  • Gavens, A. J.; Van Heerden, D.; Mann, A. B.
  • Journal of Applied Physics, Vol. 87, Issue 3, p. 1255-1263
  • DOI: 10.1063/1.372005

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

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