Award Data

MANY CURRENT AND PLANNED DEFENSE AEROSPACE PROGRAMS DEPEND CRITICALLY UPON RAPID DEVELOPMENT OF LIGHTWEIGHT COMPOSITE MATERIALS HAVING UNPRECEDENTED HIGH-TEMPERATURE PROPERTIES. CONTINUOUS FIBER REINFORCED INTERMETALLIC MATRIX COMPOSITES (IMC'S) HAVE THE POTENTIAL TO MEET THESE PERFORMANCE REQUIREMENTS, AND CONSIDERABLE RESEARCH EFFORT IS NOW DEVOTED TO DEVELOPING THEM. WE RECENTLY DEMONSTRATED A ...

AN IMPORTANT COMPONENT OF ARCJET THRUSTERS IS THE INSULATOR HOLDING THE CATHODE BASE AND SEPARATING THE ELECTRODES. THE CURRENT BASELINE MATERIAL IS BORON NITRIDE (BN), WHICH IS WELL KNOWN FOR ITS HIGH ELECTRICAL RESISTIVITY AND HIGH THERMAL CONDUCTIVITY. HOWEVER, AT ARCJET OPERATING TEMPERATURE, BN HAS A DRAMATIC INCREASE IN ELECTRICAL CONDUCTIVITY AND A DECREASE IN THERMAL CONDUCTIVITY. ADDITION ...

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A THEORETICAL PROGRAM IS PROPOSED TO INVESTIGATE A COMPACT, LOW-VOLTAGE INFRARED GRATING LASER WITH MULTI-KILOWATT OUPUT CAPABILITY. THE RADIATION IS GENERATED BY THE PASSAGE OF AN ANNULAR BEAM OF ELECTRONS THROUGH A COAXIAL PAIR OF CONDUCTORS, THE INNER CONDUCTOR BEING A CORRUGATED CYLINDER WHICH FORMS THE GRATING. THE ELECTRON BEAM IS GUIDED BY AN AXIAL MAGNETIC FIELD. THE DIMENSIONS OF THE OPTI ...

ENGINE ELECTRIC HIGH-SPEED MAGNETOSTRICTIVE MATERIAL LONG-LIFE PROPULSION RESEARCH INC WILL DEVELOP AN ULTRA-EFFICIENT, HIGH POWER LOW WEIGHT COMPACT ELECTRIC ENGINE USING A REVOLUTIONARY PHYSICAL CONCEPT. IT WILL ALLOW THE CREATION OF ELECTRIC POWERED ENGINES FOR USES IN EVERYTHING FROM "WEED-WACKERS" TO SUBMARINE ENGINES. THESE ENGINES HAVE THE POTENTIAL FOR HIGH STARTING AND RUNNING TORGUE, HIG ...

OPTICS USED IN SENSORS OR MISSILE SYSTEMS ARE MADE FROM SAPPHIRE, OR SILICON CARBIDE BECAUSE OF THEIR EXCELLENT OPTICAL OR INSULATING PROPERTIES, THEIR INERT, AND THEIR ABILITY TO RESIST HARSH ENVIRONMENTS. POLISHING SAPPHIRE BY MECHANICAL OR MECHANOCHEMICAL METHODS INDUCES RESIDUAL DAMAGE AND LIMITS THE OVERALL SURFACE ROUGHNESS (USUALLY AROUND 1 MICROINCH). THIS ROUGHNESS PRODUCES SCATTERING CEN ...

A NOVEL MILLIMETER WAVE TERMINAL GUIDANCE IS PROPOSED, WHICH IS UNIQUELY SUITABLE FOR SMALL SPINNING PROJECTILES. THIS GUIDANCE CONCEPT DOES NOT REQUIRE INERTIAL COMPONENTS. IT UTILIZES THE INHERENTINERTIAL PROPERTIES OF PROJECTILE SPIN NUTATION. THE CONCEPT CAN BE IMPLEMENTED WITH VERY LOW WEIGHT AND VOLUME, AND PROMISES PROJECTILE COST SAVINGS OF AN ORDER OF MAGNITUDE. APPLICATIONS OF THIS NOVEL ...