Award Data

We propose the exploration of single crystal GaN waveguides for the fabrication of optoelectronic integrated circuits. The feasibility of using GaN for short wavelength (up to 365 nm) OEIC's will be established in Phase I via the demonstration of a channel waveguide based phase shifter. The Al(sub x)GA(sub 1-x)N material system with its transparency from 365 nm to 12 microns, tunable refractive in ...

We propose to develop an imroved analytical model for predicting the velocity and direction of fragments projected by an explosive warhead. The model will account for the metal acceleration history, unsteady effects, curvature, internal voids, and end effects (explosive pressure release). The model will be validated by comparisons with experimental data and hydrocode corruptions .

We propose to provide a set of general design drawings describing a multi vessel UHV growth and surface analysis system which is based on the concept of central distribution sample handling. The type of UHV system discussed in this proposal is of interest be- cause electronic and optical device fabrication techniques have suffered from difficulties arising from the need to analyze device parameter ...

KINETIC ENERGY PENETRATORS MADE OF DU ALLOYS PERFORM BETTER THAN THE TUNGSTEN HEAVY ALLOYS (WHA). THE IMPROVED PERFORMANCE IN DU ALLOY PENETRATORS IS ATTRIBUTABLE TO FAILURE BY ADIABATIC SHEAR BANDING WHICH HELPS THE PROJECTILE MAINTAIN A SELF-SHARPENED CHISELED NOSE THERBY PENETRATING FURTHER THAN TUNGSTEN BASED PENETRATORS. RADIOLOGICAL HAZARDS OF DU ALLOYS, HOWEVER, DICTATE THE IMPROVEMENT IN P ...

In High Energy Lasers (HEL) a large percentage of the laser energy is wasted typically by switching onto beam dumps. Some of this wasted energy could be utilized to synthesize exotic materials which have useful commercial applications. In order to utilize this wasted energy to synthesize new and exotic materials, specialty chambers and equipment are needed. This program will review previous effort ...

A novel and newly discovered C60 carbon material was found to exhibit unique electrochemical and physical properties. C60 and catalyzed C60 electrodes for hydrogen storage and supplies will be fabricated by vapor deposition and dry pressing. These electrodes will be fully characterized as hydrogen electrodes in C60Hx-air fuel cells. The nature of the electrochemical hydrogenation and dehydrogenati ...

THE DEVELOPMENT OF AN INTELLIGENT DATABASE MANAGEMENT SYSTEM PERMITS ADDRESSING TWO PROBLEMS WITH POLUMER AND POLYMER MATRIX COMPOSITE MATERIALS DATA. THE DATA NEED A DATABASE TO SERVE AS A FOCAL POINT FOR ARCHIVING AND REFERENCE. IN ADDITION, FREQUENTLY A COMPLETE SET OF DATA FROM A MATERIAL IS NOT AVAILABLE. IN THIS CASE, THE INTELLIGENT PART OF THE SYSTEM, THE KNOWLEDGE MANAGEMENT SYSTEM CAN BE ...

WE WILL DESIGN A SYSTEM FOR THE AUTOMATIC CREATION OF INFORMATION DISPLAYS TO SUPPORT USERS OF LARGE, INFORMATION-INTENSIVE COMPUTER APPLICATIONS. THE SYSTEM WILL BE BASED ON CURRENT THEORETICAL RESEARCH IN THIS AREA AND WILL BE INTEGRATED WITH ONE OR MORE OF THE FOLLOWING: USER PRESENTATION GRAPHICS PACKAGES, USER INTERFACE MANAGEMENT SYSTEMS, USER INTERFACE BUILDING TOOLKITS, AND DATABASE EXPLOR ...

M-Dot, Inc. ("M-DOT") proposes to design, fabricate and test a thrust augumentation system for low cost expendable turbojet engines. The system will be designed for application on the Sunstrand TJ-90 engine and will utilize existing and proven technologies. The system will consist of the following: 1. Sudden expansion burner for exhaust re-heat. 2. System for water/methanol injection at the compre ...

OPTICAL FIBERS CAN BE DEVELOPED TO TRANSMIT INTENSE LASER RADIATION THROUGH SELECTIVE CHOICE OF MATERIALS AND DESIGN PARAMETERS FOR THE FIBERS IN THE WAVELENGTH RANGE OF 0.193-10.6 MICRON. THESE FIBERS CAN BE INCORPORATED INTO DELIVERY SYSTEMS FOR PROGRAMMED DELIVERY OF LASER ENERGY AND INTEGRITY VERIFICATION. THE PRESENT PROPOSAL DESCRIBES A PHASE I FEASIBILITY STUDY PROGRAM COMPRISING THE DEVELO ...