LLNL Home S&TR Home Subscribe to S&TR Send Us Your Comments S&TR Index
Spacer Gif

S&TR Staff

Spacer Gif


Compact Imaging Spectrometer Utilizing an Immersed Grating and Anamorphic Mirror
Scott A. Lerner
U.S. Patent 6,985,226 B2
January 10, 2006
The compact imaging spectrometer is composed of an entrance slit, an anamorphic mirror, a grating, and a detector array. The entrance slit directs light to the anamorphic mirror. The mirror receives the light and directs the light to the grating. The grating receives the light from the mirror and defracts the light back onto the mirror. The mirror focuses the light onto a detector array.

Method for Producing Nanostructured Metal-Oxides
Thomas M. Tillotson, Randall L. Simpson, Lawrence W. Hrubesh, Alexander Gash
U.S. Patent 6,986,818 B2
January 17, 2006
A synthetic route for producing nanostructure metal oxide–based materials using solgel processing. This procedure uses stable and inexpensive hydrated-metal inorganic salts and environment-friendly solvents such as water and ethanol. This synthesis involves the dissolution of the metal salt in a solvent followed by the addition of a proton scavenger, which induces gel formation in a timely manner. Both critical point (supercritical extraction) and atmospheric drying (low-temperature evaporation) may be used to produce monolithic aerogels and xerogels, respectively. With this method, metal oxide nanostructured materials have been synthesized using inorganic salts. Nanostructured metal oxides from the following elements of the periodic table can be made: groups 2 through 13, part of group 14 (germanium, tin, lead), part of group 15 (antimony, bismuth), part of group 16 (polonium), and the lanthanides and actinides. The solgel processing allows for the addition of insoluble materials (for example, metals or polymers) to the viscous sol, just before gelation, and produces uniformly distributed nanocomposites upon gelation. For example, energetic nanocomposites of an iron–oxygen gel with distributed aluminum are readily made. The compositions are stable, safe, and can be readily ignited to thermic reaction.

Metal-Oxide–Based Energetic Materials and Synthesis Thereof
Thomas M. Tillotson, Randall L. Simpson, Lawrence W. Hrubesh
U.S. Patent 6,986,819 B2
January 17, 2006
A method of preparing metal oxide–based energetic materials using solgel chemistry has been invented. The wet chemical solgel processing improves 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 solgel hydrolysis and condensation reactions are used. Drying is done by standard solgel 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.

Electronic Unit Integrated into a Flexible Polymer Body
Peter A. Krulevitch, Mariam N. Maghribi, William J. Benett, Julie K. Hamilton, Klint A. Rose, James Courtney Davidson, Mark S. Strauch
U.S. Patent 6,991,963 B2
January 31, 2006
A peel-and-stick electronic system is composed of a silicone body and at least one electronic unit operatively connected to the silicone body. The electronic system is produced by providing a silicone layer on a substrate, a metal layer on the silicone layer, and at least one electronic unit connected
to the metal layer.


Back | S&TR Home | LLNL Home | Help | Phone Book | Comments
Site designed and maintained by TID’s Internet Publishing Team

Lawrence Livermore National Laboratory
7000 East Avenue, Livermore, CA 94550-9234
S&TR Office: (925) 423-3432
Operated by the University of California for the U.S. Department of Energy

UCRL-52000-06-4 | April 12, 2006