Award Data

The enabling solid state semiconductor technology in modern electronics and radar systems increases their vulnerability to the effects of high power, fast rise-time EMP, HPM, and UWB pulses. In recent years, significant advances in the technology used to produce these pulses have been made in the United States and abroad, increasing the need for effective protection against these threats. Howeve ...

An open problem confronting Uninhabited Tactical Aircraft (UTA) is the control concept for their successful operation in combat. Unlike reconnaissance UAVs, it will not be practical to operate UTAs with fully pre-programmed missions nor will it be possible to continuosly fly with them from remote cockpits. A new control paradigm is needed. One that supports a full range of intervention from dir ...

This phase I development will provide a low defect InGaN p-n junction tuned to 2.6 eV. The characteristics of the junction will be high electron and hole concentrations, low defect density and no phase separation in the InGaN. This will be accomplished using a revolutionary epitaxial technique, combined with lattice-matched substrates and state of the art device fabrication.

JRD, Raytheon, and Tuskegee University have successfully completed the Phase I effort for design and development of an advanced solid state cryocooler for infrared sensor components. In addition, it was decided that the lowest-risk path forward for Phase II is the two-stage hybrid pulse tube / Joule-Thomson design. These initial calculations predict that efficiency potential of the solid state c ...

Lithium metal possess a high specific capacity of 3860 Ah/kg, and can provide high voltages in electrochemical cells, thus creating the basis for high specific energy batteries. However, batteries based on lithium metal suffer several drawbacks, due to the poor morphology of redeposited lithium and possibility of dendrite growth, which can short circuit the battery and pose safety hazards. We pro ...

Johnson Research and Development Co., Inc. (JRD) proposes development of a key component for an innovative, highly efficient heat engine that can operate as a versatile power generator and heat pump for either cooling or heating. The Johnson thermo-electrochemical converter (JTEC) is an innovative all solid state heat engine that operates on the Ericsson cycle (Carnot equivalent) and directly con ...

Proposed is an investigation into the use of flexible, extremely strong and tough, superelastic Nitinol shape memory alloy as a means of dramatically improving puncture resistance for personnel body armor. The Nitinol material is proposed as a surface material or coating for reinforcement or organic fiber fabrics and/or composites or aramid and UHMW polyethylene used in the current body armor sys ...

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Applying multivariable optimization in conjunction with modern materials technology has revealed an opportunity to dramatically improve flywheel energy storage technology. Using this innovative approach, GTL’s Advanced Flywheel™ could deliver 500 W-hr/kg with the potential to achieve in excess of 1000 W-hr/kg. This represents a substantial increase in performance over conventional high-perfo ...

To achieve the high propellant mass fraction (PMF) required by future high energy propulsion systems, light-weight propellant tanks are essential. GTL’s Supra-tanks™ can approach the theoretical performance limit for carbon fiber pressure vessels using cryogenic or room-temperature propellants. By combining the Blended Hybrid Laminate™ (BHL™) technology with aspects of the Highly Integra ...