Award Data

This proposal is directed to the preparation of high-surface-area (HSA) activated-carbon fibers that are suitable for the Army's lightweight chemical-protective combat uniforms. The overall goal of the proposed program is to develop a domestic source of activated-carbon fibers having surface areas greater than 1500 m2/g. Our approach begins with a novel method of preparing polymeric precursor fibe ...

A DISPERSION AND COMPOSITE STRENGTHENING APPROACH INCORPORATING THE BENEFITS OF RAPID SOLIDIFICATION AND IN-SITU COMPOSITE FORMATION IS PROPOSED FOR THE DEVELOPMENT OF CREEP AND FATIGUE RESISTANT HIGH STRENGTH SOLDER ALLOYS AND COMPOSITES FOR ELECTRONICS PACKAGING APPLICATIONS . THE GOAL OF PHASE I OF THE PROGRAM IS TO DEMONSTRATE THE FEASIBILITY OF PRODUCING BY INDUCTION MELTING AND INERT GAS ATO ...

As mission critical avionics systems increase in complexity, the evaluation of their performance and reliability will become more difficult. We propose to select and to integrate a group of reliability and performance analysis tools, specifically designed to handle the fault-tolerant operational aspects of the next generation avionics architectures. These tools will support both hardware and softw ...

A SIGNIFICANT NEED EXISTS FOR ELECTRONIC DEVICES OPERATING ABOVE 200 DEGREE C. THESE DEVICES COULD BE USED IN SENSING AND CONTROL APPLICATIONS IN TURBINE, HIGH POWER AND HIGH FREQUENCY MICROWAVE RADAR SYSTEMS, AUTOMOTIVE ELECTRONICS AND SATELLITE COOMUNICATION SYSTEMS. WE PROPOSE TO MEET THIS NEED WITH THE (III-N)x(SiC)x ALLOY SYSTEM. Al(x)Ga(1-x) IS A DIRECT, WIDE BANDGAP SEMICONDUCTOR (3.4 TO 6. ...

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We propose to demonstrate the feasibility of fabricating a phototransistor using the A1xGa1-xN material system. The proposed phototransitor is based on a GaN-A1xGa1-xN heterojunction which exhibits a 2-D electron gas conduction when a bias is applied on the source-drain terminals. The device is maintained in a nominally OFF state by applying a reverse bias voltage on the gate terminal. With optica ...

ADAPTATION OF STATE-OF-THE-ART GIGAHERTZ WAFER PROBE TECHNOLOGY (WPT) FOR USE IN DESIGN, TROUBLESHOOTING, AND PRODUCTION OF MULTICHIP MODULES (MCMS) IS PROPOSED. THESE PROBES ARE CURRENTLY CAPABLE OF TESTING SEMICONDUCTOR DEVICES ON WAFERS AT FREQUENCIES UPTO 75 GHZ. PHASE I WILL SHOW THE ELECTRICAL AND MECHANICAL FEASIBILITY OF PROBING MCMS AND SET DIRECTION FOR PHASE II. KEY TASKS INCLUDE ESTABL ...

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TO BE SUCCESSFUL THE C31 COMMUNITY HAS A NEED FOR SECURE, EFFICIENT COMPUTER SYSTEMS THAT SUPPORT THEIR MISSION. AN IMPORTANT ELEMENT OF CURRENT SYSTEMS IS THE NERWORK GUARD. SEVERAL GUARDS CURRENTLY DEPLOYED ALLOW TRANSFERS OF INFORMATION FROM LOW SECURITY LEVELS TO HIGH SECURITY LEVELS, BUT NO GENERAL PURPOSE GUARDS ARE AVAILABLE THAT ALLOW TRANSFERS FROM HIGH TO LOW. SCTC PROPOSES TO DEVELOP A ...