Saint Louis University

University of Missouri

Nanometallix LLC

Stephen W Chung

Paul Jelliss

Steven Wayne Buckner

Jacob M Laktas

Gregory J Place

Shubhra Gangopadhyay

Keshab Gangopadhyay

Rajagopalan Thiruvengadathan

Ian D Stochl

Albert Michael Becksted, Jr

Clay Stephen Staley

Kristofer Emile Raymond

Brandon J Thomas

The present invention generally concerns a nano-enhanced explosive that is integrated at many points across an explosive train. More specifically, a nano-enhanced explosive is formed when a nanocomposite we call nMx is combined with a secondary high explosive. nMx is made of LiAlHnanoparticles, elemental Al nanoparticles, an amount of Ti metal, and a nanoscale organic layer having unique burning profiles that lend energy to the explosive process including increased shockwave propagation through a chemical explosive and increased temperatures and gaseous pressure build up and release in and about the same. Our nano-enhanced explosive can be integrated at various points across an explosive train, e.g. use within a detonation cord (fuse), or as a detonation charge (initiator), or as the main charge, where the use of the nano-enhanced explosive can be characterized by the energy lent to projectiles from munitions, bubbles formed by underwater explosive trains, or blast profiles.

Nano-enhanced explosive material

The present invention generally concerns isolated nanoparticles via the decomposition of a ternary metal hydride. More specifically, the present invention harnesses increased energy densities from two distinct nanoparticles isolated by a precise decomposition of LiAlH. The singular material is air stable and is a nanocomposite of LiAlHnanoparticles, elemental Al nanoparticles, an amount of Ti metal, and a nanoscale organic layer, which we call nMx. The nanocomposite protects and preserves the high energy densities of the core metals isolated from the controlled reaction and makes the nanoparticles safe to handle in air. The final composite is devoid of byproducts or phase transitions that will decrease the energy output of the nanocomposite. The method of the present invention creates a narrow distribution of nanoparticles that have unique burning characteristics useful for many applications.

Nanocomposite for combustion application

The present invention generally concerns decomposing a ternary metal hydride to isolate nanoparticles to use in a fuel grain. More specifically, the present invention harnesses increased energy densities from two distinct nanoparticles isolated by a precise decomposition of LiAlH. The singular material is air stable and is a nanocomposite of LiAlHnanoparticles, elemental Al nanoparticles, an amount of Ti metal, and a nanoscale organic layer. We call this nanocomposite nMx, which protects and preserves the high energy densities of the core metals isolated from the controlled reaction, making the nanoparticles safe to handle in air. The narrow distribution of nanoparticles has no byproducts or phase transitions that decrease energy output. The unique burning characteristics of nMx enhance the combustion of solid propellant formulations compatible with solid or hybrid rocket motors, where fuel grains are cast, pressed, or 3D printed with nMx powder, a polymeric binder, or optional additives.

Nanocomposite enhanced fuel grains

The present invention generally concerns a method for isolating nanoparticles via the decomposition of a ternary metal hydride. More specifically, the present invention harnesses increased energy densities from two distinct nanoparticles isolated by a precise decomposition of LiAlH. The singular material is air stable and is a nanocomposite of LiAlHnanoparticles, elemental Al nanoparticles, an amount of Ti metal, and a nanoscale organic layer, which we call nMx. The nanocomposite protects and preserves the high energy densities of the core metals isolated from the controlled reaction and makes the nanoparticles safe to handle in air. The final composite is devoid of byproducts or phase transitions that will decrease the energy output of the nanocomposite. The method of the present invention creates a narrow distribution of nanoparticles that have unique burning characteristics useful for many applications.

Method for making a novel nanocomposite for combustion applications

An energetic nanocomposite includes fuel nanoparticles and oxidizer nanoparticles covalently bonded to negatively charged functionalized graphene sheets. A preferred example includes Al fuel nanoparticles and BiOnanoparticles. A preferred method of formation mixes a solution of positively charged fuel nanoparticles, positively charged oxidizer nanoparticles, and negatively charged functionalized graphene sheets having functional groups to bond with the positively charged fuel nanoparticles and positively charged oxidizer nanoparticles. Self-assembly of the energetic nanocomposite is permitted over a predetermined time via the attraction and aggregation of the positively charged fuel nanoparticles positively charged oxidizer nanoparticles and negatively charged functionalized graphene sheets. Additional methods and nanocomposites include unfunctionalized graphene sheets, which can be commercial grade sheets.

Hierarchical self-assembled energetic materials and formation methods

Nanocomposite for combustion applications

This invention provides metal nanoparticles (e.g., aluminum, chromium, iron and magnesium) having an epoxide-based oligomer coating, compositions thereof, method of making the same, and methods of use thereof, including for energy related applications.

Growing community of inventors

St. Louis, MO, United States of America

Stephen W Chung