Ignitable heterogeneous stratified structure for the propagation of an internal exothermic chemical reaction along an expanding wavefront and method of making same
Abstract
A multilayer structure has a selectable, (i) propagating reaction front velocity V, (ii) reaction initiation temperature attained by application of external energy and (iii) amount of energy delivered by a reaction of alternating unreacted layers of the multilayer structure. Because V is selectable and controllable, a variety of different applications for the multilayer structures are possible, including but not limited to their use as ignitors, in joining applications, in fabrication of new materials, as smart materials and in medical applications and devices. The multilayer structure has a period D, and an energy release rate constant K. Two or more alternating unreacted layers are made of different materials and separated by reacted zones. The period D is equal to a sum of the widths of each single alternating reaction layer of a particular material, and also includes a sum of reacted zone widths, t.sub.i, in the period D. The multilayer structure has a selectable propagating reaction front velocity V, where V=K(1/D.sup.n).times.[1-(t.sub.i /D)] and n is about 0.8 to 1.2.
- Inventors:
-
- (Palo Alto, CA)
- Menlo Park, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 870523
- Patent Number(s):
- 5538795
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C06 - EXPLOSIVES C06B - EXPLOSIVES OR THERMIC COMPOSITIONS
C - CHEMISTRY C06 - EXPLOSIVES C06C - DETONATING OR PRIMING DEVICES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ignitable; heterogeneous; stratified; structure; propagation; internal; exothermic; chemical; reaction; expanding; wavefront; method; multilayer; selectable; propagating; front; velocity; ii; initiation; temperature; attained; application; external; energy; iii; amount; delivered; alternating; unreacted; layers; controllable; variety; applications; structures; including; limited; ignitors; joining; fabrication; materials; smart; medical; devices; period; release; rate; constant; separated; reacted; zones; equal; widths; single; layer; particular; material; zone; times; 1-; release rate; reaction layer; multilayer structures; medical applications; chemical reaction; multilayer structure; propagating reaction; reaction front; particular material; front velocity; rate constant; reaction initiation; energy release; external energy; temperature attained; ignitable heterogeneous; heterogeneous stratified; initiation temperature; /428/228/
Citation Formats
Barbee, Jr., Troy W., and Weihs, Timothy. Ignitable heterogeneous stratified structure for the propagation of an internal exothermic chemical reaction along an expanding wavefront and method of making same. United States: N. p., 1996.
Web.
Barbee, Jr., Troy W., & Weihs, Timothy. Ignitable heterogeneous stratified structure for the propagation of an internal exothermic chemical reaction along an expanding wavefront and method of making same. United States.
Barbee, Jr., Troy W., and Weihs, Timothy. Mon .
"Ignitable heterogeneous stratified structure for the propagation of an internal exothermic chemical reaction along an expanding wavefront and method of making same". United States. https://www.osti.gov/servlets/purl/870523.
@article{osti_870523,
title = {Ignitable heterogeneous stratified structure for the propagation of an internal exothermic chemical reaction along an expanding wavefront and method of making same},
author = {Barbee, Jr., Troy W. and Weihs, Timothy},
abstractNote = {A multilayer structure has a selectable, (i) propagating reaction front velocity V, (ii) reaction initiation temperature attained by application of external energy and (iii) amount of energy delivered by a reaction of alternating unreacted layers of the multilayer structure. Because V is selectable and controllable, a variety of different applications for the multilayer structures are possible, including but not limited to their use as ignitors, in joining applications, in fabrication of new materials, as smart materials and in medical applications and devices. The multilayer structure has a period D, and an energy release rate constant K. Two or more alternating unreacted layers are made of different materials and separated by reacted zones. The period D is equal to a sum of the widths of each single alternating reaction layer of a particular material, and also includes a sum of reacted zone widths, t.sub.i, in the period D. The multilayer structure has a selectable propagating reaction front velocity V, where V=K(1/D.sup.n).times.[1-(t.sub.i /D)] and n is about 0.8 to 1.2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}
Works referenced in this record:
The propagation of a solid‐state combustion wave in Ni‐Al foils
journal, November 1989
- Anselmi‐Tamburini, U.; Munir, Z. A.
- Journal of Applied Physics, Vol. 66, Issue 10