Layered reactive particles with controlled geometries, energies, and reactivities, and methods for making the same

Title: Layered reactive particles with controlled geometries, energies, and reactivities, and methods for making the same

An energetic composite having a plurality of reactive particles each having a reactive multilayer construction formed by successively depositing reactive layers on a rod-shaped substrate having a longitudinal axis, dividing the reactive-layer-deposited rod-shaped substrate into a plurality of substantially uniform longitudinal segments, and removing the rod-shaped substrate from the longitudinal segments, so that the reactive particles have a controlled, substantially uniform, cylindrically curved or otherwise rod-contoured geometry which facilitates handling and improves its packing fraction, while the reactant multilayer construction controls the stability, reactivity and energy density of the energetic composite.

Inventors:: Fritz, Gregory M.; Weihs, Timothy P.; Grzyb, Justin A.

Issue Date:: 2016-07-05

OSTI Identifier:: 1260254

Assignee:: THE JOHNS HOPKINS UNIVERSITY (Baltimore, MD) OSTI

Patent Number(s):: 9,382,167

Application Number:: 13/850,064

Contract Number:: B562528

Resource Relation:: Patent File Date: 2013 Mar 25

Research Org:: THE JOHNS HOPKINS UNIVERSITY, Baltimore, MD (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

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Other works cited in this record:

Enabling and controlling slow reaction velocities in low-density compacts of multilayer reactive particles
journal, June 2011

Fritz, Gregory M.; Joress, Howie; Weihs, Timothy P.
Combustion and Flame, Vol. 158, Issue 6, p. 1084-1088
DOI: 10.1016/j.combustflame.2010.10.008

Effect of varying bilayer spacing distribution on reaction heat and velocity in reactive Al/Ni multilayers
journal, April 2009

Knepper, Robert; Snyder, Murray R.; Fritz, Greg
Journal of Applied Physics, Vol. 105, Issue 8, Article No. 083504
DOI: 10.1063/1.3087490

Thermal and microstructural effects of welding metallic glasses by self-propagating reactions in multilayer foils
journal, August 2005

Swiston, A. J.; Besnoin, E.; Duckham, A.
Acta Materialia, Vol. 53, Issue 13, p. 3713-3719
DOI: 10.1016/j.actamat.2005.04.030

Investigating the effect of applied pressure on reactive multilayer foil joining
journal, October 2004

Wang, J.; Besnoin, E.; Knio, O. M.
Acta Materialia, Vol. 52, Issue 18, p. 5265-5274
DOI: 10.1016/j.actamat.2004.07.012

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

The deposition and analysis of pyrotechnic devices deposited by magnetron sputtering
journal, October 1993

Kelly, P. J.; Tinston, S. F.; Arnell, R. D.
Surface and Coatings Technology, Vol. 60, Issue 1-3, p. 597-602
DOI: 10.1016/0257-8972(93)90160-P

Pyrotechnic devices by unbalanced magnetron sputtering
journal, May 1994

Kelly, P. J.; Tinston, S. F.
Vacuum, Vol. 45, Issue 5, p. 507-511
DOI: 10.1016/0042-207X(94)90243-7

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

Swiston, A. J.; Hufnagel, T. C.; Weihs, T. P.
Scripta Materialia, Vol. 48, Issue 12, p. 1575-1580
DOI: 10.1016/S1359-6462(03)00164-7

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