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Energetic Decomposition of High-Nitrogen Metal Complexes and the Formation of Low-Density Nano-Structured Metal Monoliths

Published online by Cambridge University Press:  26 February 2011

Bryce C Tappan ,
My Hang Huynh ,
Michael A. Hiskey ,
David E. Chavez ,
Erik P. Luther ,
Joseph T. Mang  and
Steven F. Son
Bryce C Tappan
Affiliation:
btappan@lanl.gov, Los Alamos National Laboratory, MS C920, Los Alamos, NM, 87545, United States, 505-667-0533
My Hang Huynh
Affiliation:
huynh@lanl.gov, Los Alamos National Laboratory, United States
Michael A. Hiskey
Affiliation:
hiskey@lanl.gov, Los Alamos National Laboratory, United States
David E. Chavez
Affiliation:
dechavez@lanl.gov, Los Alamos National Laboratory, United States
Erik P. Luther
Affiliation:
eluther@lanl.gov, Los Alamos National Laboratory, United States
Joseph T. Mang
Affiliation:
jtmang@lanl.gov, Los Alamos National Laboratory, United States
Steven F. Son
Affiliation:
son@lanl.gov, Los Alamos National Laboratory, United States
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Abstract

Metal complexes of the energetic high-nitrogen ligand, bistetrazole amine (BTA) were ignited in inert environments and their decomposition characteristics were determined. These molecules were found to have the unique properties of a comparatively slow burning rate with very little pressure dependency, unlike most energetic, metal-containing molecules which tend to detonate, rather than burn steadily. This process resulted in unprecedented ultra-low-density, nano-structured, transition metal monoliths, useful as a self-propagating combustion synthesis technique. The resulting nanostructured metal monolithic foams formed in the post flame-front dynamic assembly have remarkably low densities down to 0.011 g cm-3 and extremely high surface areas as high as 270 m2 g-1. In this work we discuss primary the production of iron monoliths, however have produced monolithic nano-porous metal foams via this method with cobalt, copper and silver metals as well. We expect to be able to apply this to many other metals and to be able to tailor the resulting structure significantly.

Keywords

combustion synthesismetalenergetic material
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 896: Symposium H – Multifunctional Energetic Materials , 2005 , 0896-H01-06
Copyright
Copyright © Materials Research Society 2006

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References

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