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Title: Metal-oxide-based energetic materials and synthesis thereof

Abstract

A method of preparing energetic metal-oxide-based energetic materials using sol-gel chemistry has been invented. The wet chemical sol-gel processing provides an improvement in both safety and performance. Essentially, a metal-oxide oxidizer skeletal structure is prepared from hydrolyzable metals (metal salts or metal alkoxides) with fuel added to the sol prior to gelation or synthesized within the porosity metal-oxide gel matrix. With metal salt precursors a proton scavenger is used to destabilize the sol and induce gelation. With metal alkoxide precursors standard well-known sol-gel hydrolysis and condensation reactions are used. Drying is done by standard sol-gel practices, either by a slow evaporation of the liquid residing within the pores to produce a high density solid nanocomposite, or by supercritical extraction to produce a lower density, high porous nanocomposite. Other ingredients may be added to this basic nanostructure to change physical and chemical properties, which include organic constituents for binders or gas generators during reactions, burn rate modifiers, or spectral emitters.

Inventors:
 [1];  [2];  [3]
  1. (Tracy, CA), Simpson
  2. Livermore, CA
  3. Pleasanton, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908609
Patent Number(s):
6,986,819
Application Number:
10/422,488
Assignee:
The Regents of the University of California (Oakland, CA) OAK
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Tillotson, Thomas M., Randall, L, and Hrubesh, Lawrence W. Metal-oxide-based energetic materials and synthesis thereof. United States: N. p., 2006. Web.
Tillotson, Thomas M., Randall, L, & Hrubesh, Lawrence W. Metal-oxide-based energetic materials and synthesis thereof. United States.
Tillotson, Thomas M., Randall, L, and Hrubesh, Lawrence W. Tue . "Metal-oxide-based energetic materials and synthesis thereof". United States. doi:. https://www.osti.gov/servlets/purl/908609.
@article{osti_908609,
title = {Metal-oxide-based energetic materials and synthesis thereof},
author = {Tillotson, Thomas M. and Randall, L and Hrubesh, Lawrence W},
abstractNote = {A method of preparing energetic metal-oxide-based energetic materials using sol-gel chemistry has been invented. The wet chemical sol-gel processing provides an improvement in both safety and performance. Essentially, a metal-oxide oxidizer skeletal structure is prepared from hydrolyzable metals (metal salts or metal alkoxides) with fuel added to the sol prior to gelation or synthesized within the porosity metal-oxide gel matrix. With metal salt precursors a proton scavenger is used to destabilize the sol and induce gelation. With metal alkoxide precursors standard well-known sol-gel hydrolysis and condensation reactions are used. Drying is done by standard sol-gel practices, either by a slow evaporation of the liquid residing within the pores to produce a high density solid nanocomposite, or by supercritical extraction to produce a lower density, high porous nanocomposite. Other ingredients may be added to this basic nanostructure to change physical and chemical properties, which include organic constituents for binders or gas generators during reactions, burn rate modifiers, or spectral emitters.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 17 00:00:00 EST 2006},
month = {Tue Jan 17 00:00:00 EST 2006}
}

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