Award Data

Composite structures for submarines require high strength and high fracture toughness to survive underwater shock blasts. These structures have historically been built using rubber-toughened epoxy pre-impregnated (pre-pregs) reinforcements. However, experience has shown that pre-pregs can be difficult to work with, especially for thick section parts, and require expensive, size-limited, autoclav ...

The successful Phase I effort to incorporate POSS into BMI resin resulted in substantial Tg and HDT improvements while reducing the cure temperature. The proposed Phase II effort will optimize the formulaiton while characterizing the full scope and range of enhancement in filament wound composite structures.

Hybrid Plastics proposes to develop a low cost, and versatile method for shielding commercial, military, and stacked microelectronics against the deleterious effects of space radiation. The technical approach utilizes metallized nanoscopic polyhedral oligomeric silsesquioxanes as conformal coatings or potting agents. Such coatings would permit spacecraft designers to use commercial ICs in applicat ...

A thick SiC epitaxy process was demonstrated by SemiSouth in Phase I, as the growth (or deposition) rate was boosted from 5 um/h to 20 um/h, and thickness uniformity was kept to 5% or below. In the Phase 2 effort, it is proposed that the processes be developed for production by re-designing and optimizing the reactor susceptor in a research reactor to minimize cost and risk. Specifically, the su ...

ABSTRACT: Several new high-power, long range radar systems are under development for near-term upgrades or fielding by MDA, Navy, and Marine Corps, which will use High Voltage GaAs or new WBG Semiconductors (SiC, GaN) in the transmitter/receiver. These systems will require compact, efficient, temperature tolerant power supplies and converters typically requiring a 600 V class of power devices. ...

CompuTherm proposes to develop a tool which will enable the simulation of thermal and chemical effects on turbine engine component parts made of Alloy 718 during heat treatment and service. The proposed innovative tool will include a thermodynamic database which covers all the phases for Alloy 718 and a software package which integrates both thermodynamic and kinetic models. The tool can be used t ...

The Phase II component of this project will scale from the gigahertz to the terahertz regime the new antennas, pulse generators, detectors and modulation concepts modeled and demonstrated in Phase I. Phase II efforts will focus on arrays for generating and detecting broadband radiation from 50 GHz to above 0.5 THz (where atmospheric absorption is minimized) for sensing concealed threats. Portabili ...

High-performance vacuum electron devices, such as microwave tubes, are widely used in military electronic battle-space systems. These devices are found in radar, communications, remote sensing, and navigation systems, where they provide an efficient and reliable source of microwave power. The pivotal role of microwave tubes in many on-board systems makes them a natural choice for careful optimiza ...

FEASIBILITY STUDY FOR APPLICATION OF MICROMECHANICAL GYRO AND ACCELEROMETER TECHNOLOGY OR OTHER SOLID STATE INERTIAL SENSORS FOR INERTIALLY GUIDED CONVENTIONAL MUNITIONS. INERTIAL MEASUREMENT UNITS (IMU'S) ARE CONCEPTUALLY DEFINED FOR USE ON THE MUNITION AND ON THE WEAPON DELIVERY PLATFORM. ESTIMATES OF IMPACT ACCURACY MADE. IMU REQUIREMENTS ARE DEFINED. INNOVATIVE DUAL IMU APPROACH APPLIED TO TAN ...

THE OBJECTIVES OF PHASE I ARE TWOFOLD: DEMONSTRATE THE FEASIBILITY OF BIOLUMINESCENT TESTING FOR DETECTION OF TOXIC COMPOUNDS, AND DEVELOP AN INEXPENSIVE PHOTO-DIODE BASED LIGHT DETECTION SYSTEM FOR FIELD MEASUREMENT OF LOW LEVEL BIOLUMINESCENCE. THIS UNIQUE TEST WILL UTILIZE DARK STRAINS OF E. COLI CONTAINING CLONED LUX GENES FROM THE LUMINOUS BACTERIUM PHOTOBACTERIUM LEIOGNATHI TO DETECT CARCINO ...