Award Data

N/A

INTERMETALLIC COMPOUNDS, IN PARTICULAR ALUMINIDES, SILICIDES, AND BERYLIDES, ARE KNOWN FOR THEIR HIGH MELTING POINTS AND CORROSION AND OXIDATION RESISTANCE. MANY OF THESE COMPOUNDS HAVE LOW DENSITIES AND VERY HIGH STRENGTHS AND, THEREFORE, ARE OF INTEREST FOR HIGH TEMPERATURE APPLICATIONS. HOWEVER, CONVENTIONAL PROCESSING OF INTERMETALLIC COMPOUNDS SUFFERS SEVERE LIMITATIONS, NAMELY REACTIONS WITH ...

A PRIMARY LIMITATION OF PHOTOELECTROCHEMICAL CELLS IS PHOTOCORROSION OF ELECTRODE MATERIALS. ONE SOLUTION TO THISPROBLEM HAS BEEN TO APPLY ELABORATE CONDUCTING POLYMERIC COATINGS TO SENSITIVE ELECTRODES. AN ALTERNATIVE IS TO USE CORROSION RESISTANT ELECTRODE MATERIALS. GROUP VI METAL DICHALCOGENIDES, AND TUNGSTEN DISELENIDE (WSE2) IN PARTICULAR, HAVE SHOWN PROMISE AS INTRINSICALLY CORROSION RESIST ...

A NOVEL DIAMOND DETECTOR FOR USE IN THE SOFT X-RAY TO THE VACUUM ULTRAVIOLET IS PROPOSED. THIS X-RAY DETECTOR IS BASED ON THE USE OF A DIAMOND FILM AS THE ACTIVE DETECTOR ELEMENT DUE TO DIAMOND'S HIGH INTRINSIC RESISTIVITY (LOW DARK CURRENT), LARGE CARRIER MOBILITIES, HIGH SATURATEDCARRIER DRIFT VELOCITY AND RADIATION AND CHEMICAL CORROSION RESISTANT CHARACTERISTICS. BECAUSE OF THESE CHARACTERISTI ...

THE USE OF SUPERCONDUCTING RADIO FREQUENCY (SRF) CAVITIES IN ELECTRON ACCELERATORS CAN BE DRAMATICALLY EXTENDED WITH THE UTILIZATION OF HIGH TEMPERATURE SUPERCONDUCTORS (HTSC). WITH CRITICAL MAGNETIC FIELDS OF APPROXIMATELY 11,000 OE AT 2K OR 4 TIMES NIOBIUM, HTSCS OFFER THE POTENTIAL OF ACCERLERATING FIELDS OF 200 MEV/M WHICH WOULD SIGNIFICANTLY IMPROVE THE PERFORMANCE OF ELECTRON AND HEAVY ION L ...

THE UNIQUE PROPERTIES OF SSEMICONDUCTING DIAMOND MAY BE EXPLOITED TO CREATE A NOVEL, HIGH GAIN, LOW NOISE, STABLE, AND COMPACT PHOTOMULTIPLER (PMT). EXISTING PMTS ARE INADEQUATE FOR MANY APPLICATIONS WHERE SENSITIVITY AND GAIN MUST BE COMBINED WITH STABILITY AND REDUCED NOISE REQUIREMENTS. A NOVEL APPROACH TO THE DEVELOPMENT OF A COMPACT PHOTOMULTIPLIER IS PLANNED WHICH MEETS THESE REQUIREMENTS. T ...

116 High Brightness LEDs based on the (Al, Ga,In)N Materials System--Advanced Technology Materials, Inc., 7 Commerce Drive, Danbury, CT 06810-4131; Dr. Karim Boutros, Principal Investigator Dr. Duncan W. Brown, Business Official DOE Grant No. DE-FG02-97ER82319 Amount: $75,000 Based on a combination of physical, electronic and optical properties, the semiconductor materials system (aluminum, g ...

76 Micromachined SiC Sensors For Harsh Environment Applications--Advanced Technology Materials, Inc., 7 Commerce Drive, Danbury, CT 06810-4131; (203) 794-1100 Dr. Gary M. Smith, Principal Investigator Dr. Duncan W. Brown, Business Official DOE Grant No. DE-FG02-97ER82317 Amount: $75,000 Many industries are increasing their use of environmental sensors to improve system efficiency, safety, and ...

N/A

THE USE OF TRANSVERSE PRESSURE WAVE SEPARATION PROVIDES THE OPPORTUNITY FOR SOLUTION OF THE PROBLEM OF HOT-STREAM PARTICLE REMOVAL. USING A REPETITIVE PRESSURE PULSE WITH A FAST RISE AND SLOWER RELAXATION, PARTICLES CAN BE STEADILY SEGREGATED TO ONE SIDE OF THE FLOW. THE LARGER PARTICLES ARE THE MOST DESTRUCTIVE COMPONENT OF THE EXHAUST FLOW TO DOWN STREAM DEVICES, AND THESE PARTICLES CAN BE CONCE ...