Award Data

A PROGRAM TO DEMONSTRATE THE FEASIBILITY OF AN AUTOMATIC, LASER-SCANNING SOLUBILITY-MONITORING SYSTEM IS PROPOSED. THE SYSTEM IS DESIGNED TO REPLACE CURRENT MANUAL SOLUBILITY-TESTING PROCEDURES PERFORMED IN GOVERNMENT LABORATORIES, PHARMACEUTICAL COMPANIES, AND FOOD INDUSTRIES WITH A MORE ECONOMICAL AND EFFICIENT PROCEDURE. PHASE I EFFORTS WILL BE DIRECTED TO THE DESIGNING, CONSTRUCTION, AND DEMON ...

CANDIDATE MATERIALS AND PROCESSES COMPATIBLE WITH RADIATIVELY COOLED THRUSTERS UTILIZING HYDROGEN/OXYGEN AND STATE-OF-THE-ART OXIDIZING PROPELLANTS AT TEMPERATURES OF ATLEAST 2480 DEGREES K AND ABLE TO WITHSTAND AT LEAST 1000 TEMPERATURE CYCLES ARE SEVERLY LIMITED. NO SINGLE MATERIAL EXISTS TODAY WHICH CAN RELIABLY MEET THESE REQUIREMENTS. ULTRAMET PROPOSES AN INNOVATIVE APPLICATION OF CHEMICAL VA ...

ZIRCONIA (ZRO(2) AND HAFNIA HFO(2)) HAVE BEEN IDENTIFIED AS MAJOR ELEMENTS IN THE DEVELOPMENT OF COMPONENTS WHICH CAN OPERATE AT ULTRA HIGH TEMPERATURES (3000 - 4000F AND ABOVE). BOTH MATERIALS ARE VERY REFRACTORY (MELTING TEMPERATURE ABOVE 4800F), STABLE COMPOUNGS, THAT HAVE HIGH CHEMICAL INERTNESS AND LOW VAPOR PRESSURE AT HIGH TEMPERATURE. BOTH HAVE LONG BEEN USED IN BULK FORM AS OXIDATION RESI ...

COMBINED EFFECTS BOMBLETS (CEB) ARE CURRENTLY FABRICATED OF STEEL. STUDIES HAVE INDICATED THAT AN INCREASE IN LETHALITY WOULD BE ACHIEVED IF THE CEB WERE REDESIGNED TO HAVE A TUNGSTEN BODY. PREVIOUS INVESTIGATIONS USING POWER METALLURGY (P.M.) TUNGSTEN CEB'S WERE UNSUCCESSFUL DUE TO MATERIAL CONTROL PROBLEMS. ULTRAMET PROPOSES TO DEMONSTRATE THAT TUNGSTEN CEB'S CAN BE FABRICATED BY CHEMICAL VAPOR ...

CHEMICAL VAPOR DESPOSITION (CVD) IS THE ONLY DEPOSITION PROCESS WHICH HAS THE SPEED NECESSARY FOR BUILDING UP STRUCTURES. DEPOSITS TEND TO BE EPITAXIAL. BOTH THESE CHARACTERISTICS ARE ESSENTIAL FOR FABRICATING NANOMETER COMPOSITES, WHICH PROMISE TO COMBINE THE MECHANICAL ADVANTAGES OF METALS WITH THE ADVANTAGES OF CERAMICS, WITH NONE OF THE DISADVANTAGES. TO ACHIEVE SHARP POTENTIAL BOUNDARIES AND ...

THE ABILITY TO CONTROL UNWANTED IMPURITY LEVELS DURING ELECTRONIC DEVICE FABRICATION IS ESSENTIAL TO ESTABLISHING THE DESIRED PROPERTIES FOR DEVICE RELIABILITY. IN PHASE I ULTRAMET WILL DEMONSTRATE THE FEASIBILITY OF DEPOSITING THIN, ULTRA-HIGH PURITY FILMS OF BN, TIB2, NBN AND SIC ON FUSED SIO2 CRUCIBLES. A SUCCESSFUL COMPLETION OF PHASE I WILL RESULT IN METALLIC IMPURITIES IN THE COATINGS OF 5PP ...

N/A

N/A

THE LONG-TERM OBJECTIVE OF THIS WORK IS TO DEVELOP A RAPID, COLORIMETRIC, INSTRUMENT-DEPENDENT ASSAY FOR THEOPHYLLINE CONSTITUENTS. GENESIS LABS' ""IMMUNOSTRIP'' ASSAY (PROTECTED BY PATENT) IS CONSTRUCTED IN A CONFIGURATION THAT IS APPLICABLE FOR THE RAPID DETECTION OF DRUGS AND METABOLITES IN BIOLOGICAL FLUIDS, E.G., URINE, BLOOD, OR SALIVA. THE RELATIVE SIMPLICITY OF THE METHOD SUGGESTS ITS EASY ...

TEST SPECIMEN DESIGNS FOR DETERMINING IN-PLANE SHEAR PROPERTIES OF FIBER REINFORCED COMPOSITES WILL BE REVIEWED AND A FEW WILL BE SELECTED FOR DETAILED ELASTIC STRESS ANALYSES BASED ON THIS REVIEW. 2-D ANALYSES WILL BE PERFORMED FOR A NUMBER OF MATERIAL CONFIGURATIONS AND TYPES WITH DUE CONSIDERATION TO ANISOTROPY AND GEOMETRY OF THE TEST SPECIMENS. EFFECTS OF SECONDARY DAMAGE GROWTH MECHANISMS AN ...