Award Data

ABSTRACT: Availability of high quality, large area gallium nitride (GaN) single crystal substrates is one of the most outstanding issues for III-V nitride materials. Today's GaN device processes typically employ HVPE grown on sapphire and silicon carbide substrates, requiring elaborate buffer layers and deposition techniques to overcome lattice mismatch and dislocation densities up to 109/cm ...

Mobile production of electric power requires generators that are compact, lightweight, efficient, and reliable. Although standard generator approaches that use radial magnetic fields are very mature, they are also larger and heavier than desired. In response, we propose to develop an axial-flux permanent-magnet generator for advanced applications with demanding requirements. The resulting device w ...

ABSTRACT: Airborne directed energy weapons offer advantages over conventional weapons as they minimize collateral damage, reducing the cost of post-conflict reconstruction. However, the high power levels required by these weapons present size and weight challenges for airborne applications. In particular, the current capacity required of the power transmission cables can make them one of the heav ...

For the U.S. Navy, Creare is developing a Compact Swaging Machine (CSM) to attach arresting gear Purchase Cable terminals on ship. Our CSM utilizes three innovative features to dramatically reduce the size and weight of the swaging machine to make it usable in a shipboard environment: (1) a high pressure hydraulic system which minimizes the actuator size, (2) an efficient swaging schedule which re ...

Future military communication systems will rely on advanced superconductor digital electronics. These electronics will require efficient cooling at low temperatures near 4 K. Pulse-tube cryocoolers are a candidate cooling technology for this application. We propose to improve the efficiency of the pulse-tube cryocooler by addressing one of its primary performance limitations, namely the performanc ...

The performance of modern combustion systems used in propulsion devices (such as gas turbine main combustors, augmentors, and rockets) is largely dependent on the mixing of fuel and oxidizer. This mixing process, often involving a liquid jet emanating into a gaseous flow followed by subsequent breakup and atomization, is critically important to many performance metrics including thrust, efficiency ...

Structural ceramics are desirable for high-performance missile radomes due to their excellent strength-to-weight ratio and their ability to withstand high temperatures. Currently, the only way to machine silicon nitride to the tolerances and quality required involves a time-consuming and expensive diamond grinding process that can induce

We will develop a novel system for interacting with overhead imagery that allows image analysts to use more of their bodies, and to maintain eye contact, during image manipulation and analysis. We will build upon an existing spatially-aware, embodied human-computer interface systemOblong Industries"G-Speakintegrating it with current IMINT tools. G-Speak is the state-of-the-art platform on which to ...

Solid State Scientific Corporation (SSSC) is pleased to propose the design of a single-board, integrated Hostile Fire Indication (HFI) system with the nominal size, weight, and power constraints for operation as an adjunct sensor within the AN/AVR-2B(V) Laser Warning Set. Work on Phase I will consist of the preliminary design of a single circuit board that includes an uncooled, Commercial Off-The ...

Special Warfare Combat Swimmers operate in a hostile environment characterized by excessive physiologic demands and complete reliance on their equipment. Diver safety and situational awareness can be greatly improved by an integrated system capable of monitoring both diver physiologic status and breathing apparatus operation. During the course of this project Creare will develop an Integrated Di ...