93
93
Oct 8, 2015
10/15
by
Deb, Prabir.;Boone, Donald H.
texts
eye 93
favorite 0
comment 0
Title from cover
Topic: METAL COATINGS.,ALUMINATES.,PLATINUM.
Title from cover
Topics: METAL COATINGS., ALUMINATES., PLATINUM.
231
231
Jun 19, 2010
06/10
by
Bakalyuk, Ya. KH.; Kadaner, L. I.; Masik, A. KH.; Peregudov, F. M
texts
eye 231
favorite 0
comment 0
Increased cohesive strength of metallic coatings by preliminary passivation
Topics: COHESION, METAL COATINGS, PASSIVITY, POROSITY, COHESION, METAL COATING
24 p. : ill. ; 26 cm., trade catalog
Topics: corrosion inhibitors, Division 09, metal finishes, special coatings, metal coatings
247
247
Jun 9, 2011
06/11
by
Prosser, William H.; Kriz, R. D.; Fitting, Dale W
texts
eye 247
favorite 0
comment 0
Ultrasonic waves suffer energy flux deviation in graphite/epoxy because of the large anisotropy. The angle of deviation is a function of the elastic coefficients. For nonlinear solids, these coefficients and thus the angle of deviation is a function of stress. Acoustoelastic theory was used to model the effect of stress on flux deviation for unidirectional T300/5208 using previously measured elastic coefficients. Computations were made for uniaxial stress along the x3 axis fiber axis) and the...
Topics: CERMETS, SOLAR GENERATORS, STIRLING CYCLE, PROTECTIVE COATINGS, CERAMIC COATINGS, METAL COATINGS
248
248
Jul 11, 2010
07/10
by
Athans, M
texts
eye 248
favorite 0
comment 0
An overview is presented of the types of problems that are being considered by control theorists in the area of dynamic large scale systems with emphasis on decentralized control strategies. Approaches that deal directly with decentralized decision making for large scale systems are discussed. It is shown that future advances in decentralized system theory are intimately connected with advances in the stochastic control problem with nonclassical information pattern. The basic assumptions and...
Topics: CARBIDES, FIBERS, METAL MATRIX COMPOSITES, ALUMINUM ALLOYS, GRAPHITE, METAL COATINGS, VAPOR...
225
225
Jun 21, 2010
06/10
by
Mc Kenzie, R. L
texts
eye 225
favorite 0
comment 0
Numerical integration of equations for vibrational relaxation and radiative gain in expanding flows of anharmonic gas oscillators
Topics: MAGNESIUM OXIDES, PHOTOMULTIPLIER TUBES, REFLECTANCE, SPHERES, METAL COATINGS, METAL POWDER,...
268
268
texts
eye 268
favorite 0
comment 0
A METHOD OF ARITHMETIC DATA PROCESSING FOR RESTITUTING THE GEOGRAPHIC COMPONENTS OF THE WIND IS DESCRIBED. WITH THE AID OF THE GENERAL ITERATIVE PROCESS, THE RESTITUTION OF THE BALLOON POSITION IS CALCULATED USING A SEQUENCE OF INTERROGATIONS, AND LOCALIZATIONS. THE ERROR IN THE POSITION OF THE BALLOON AFTER RESTITUTION IS ANALYZED, AND SHOWN TO BE WITHIN 8%.
Topics: DIFFUSION, METALLIZING, SERVICE LIFE, TURBINE BLADES, ALUMINUM, CHROMIUM, GAS TURBINE ENGINES,...
540
540
Jul 5, 2010
07/10
by
Danchenko, V
texts
eye 540
favorite 0
comment 0
Complementary and p-channel MOS integrated circuits made by four commercial manufacturers were investigated for sensitivity to radiation environment. The circuits were irradiated with 1.5 MeV electrons. The results are given for electrons and for the Co-60 gamma radiation equivalent. The data are presented in terms of shifts in the threshold potentials and changes in transconductances and leakages. Gate biases of -10V, 10V and zero volts were applied to individual MOS units during irradiation....
Topics: MICROSTRUCTURE, PHYSICAL PROPERTIES, SPINEL, THERMODYNAMIC PROPERTIES, CRYSTAL DEFECTS, MECHANICAL...
501
501
Jul 9, 2010
07/10
by
Rhein, R. A
texts
eye 501
favorite 0
comment 0
The conditions in which hydrochloric acid aerosol is predicted by the interaction of hydrogen chloride gas with the water vapor in humid air are analyzed. The liquid gas phase equilibrium for the HCL-H2O system is expressed in terms of relative humidity and hydrogen chloride concentration as parts per million, units commonly used in pollution studies. Presented are the concentration (wt ) of HC1 in the aerosol and the concentration of aerosol (ppm) predicted.
Topics: METAL COATINGS, METAL SURFACES, PROTECTIVE COATINGS, SILICATES, ALKALI METALS, METAL FILMS, PATENT...
Topics: DTIC Archive, PPG INDUSTRIES INC PITTSBURGH PA, *PROTECTIVE COATINGS, IMMERSION, METAL COATINGS,...
The Lambda Physics LPX 210 excimer laser is currently being installed in the oxide cathode laboratory. Its primary purpose is to produce a plasma that is deposited on a nickel cathode base. In this capacity it replaces a completely unreliable vacuum arc plasma gun. The laser will be used to produce emission coatings for high performance oxide cathodes.
Topics: DTIC Archive, Paterson,, STANFORD UNIV CA, *METAL COATINGS, *LASER APPLICATIONS, *PLASMA...
The proceedings of a conference on sputtering and ion plating are presented. Subjects discussed are: (1) concepts and applications of ion plating, (2) sputtering for deposition of solid film lubricants, (3) commercial ion plating equipment, (4) industrial potential for ion plating and sputtering, and (5) fundamentals of RF and DC sputtering.
Topics: NASA Technical Reports Server (NTRS), METAL COATINGS, SPUTTERING, VACUUM DEPOSITION, EQUIPMENT...
Topics: DTIC Archive, NAVAL AIR STATION JACKSONVILLE FL, *ELECTROPLATING, METAL COATINGS, NICKEL,...
348
348
Jun 15, 2011
06/11
by
Sharpe, W. F.; Olson, M. C.; Ward, B. W
texts
eye 348
favorite 0
comment 0
The requirements for pointing accuracy, friction, and power for the elevation drive assembly of an orbiting space observatory are discussed briefly. A description of the components making up the assembly is presented. Special features requiring development testing prior to unit fabrication are more fully described together with a review of the test programs conducted and results obtained.
Topics: ALUMINUM, TEMPERATURE EFFECTS, METAL COATINGS, NICKEL ALLOYS, REACTION KINETICS, THERMODYNAMICS,...
Intermediate layers of chromium, nickel, and/or iron have been sputtered on titanium substrates. In the latter cases, upon subsequent chromium electrodeposition, adherence was localized and nonuniform. Chromium electrodeposits on chromium intermediate-sputtered layers, however, were uniform and adherent as indicated by bend tests. Experimental procedures are described and results are discussed.
Topics: DTIC Archive, SPRINGFIELD ARMORY MA, *SPUTTERING, *TITANIUM, ADHESION, CHROMIUM, ELECTRODEPOSITION,...
979
979
May 21, 2011
05/11
by
NON
texts
eye 979
favorite 0
comment 0
The finding of Midwest Research Institute (MRI) is that the economic impact of NASA research and development expenditures is substantial. NASA's role in the economic and technological growth of the United States is also substantial as illustrated in two case studies: digital communications and civil aeronautics performance and efficiency. In addition, it has been clear that NASA has also had an impact in a broad range of technological areas. During the course of conducting the study, some 250...
Topics: ELECTRICAL RESISTIVITY, METAL COATINGS, OXYGENATION, FABRICATION, FRACTURE STRENGTH, KEVLAR...
Friction Stir Processing (FSP) is an emerging technology that allows for the processing of regions near the surface of a material in order to improve upon the existing mechanical properties. Aluminum alloy samples were plasma sprayed with a Titanium-Nickel-Chrome coating or a Titanium coating. Single and multiple pass experiments were performed with both a pinned and a pinless FSP tool at rotation speeds of 400, 800 and 1500 revolutions per minute; all traverses were done at four inches per...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *METAL COATINGS, *ALUMINUM ALLOYS, PLASMA...
This thesis represents a step forward in a program to provide the Department of Defense (DOD) alternative approaches to the production of anti-corrosion metal coatings. Specifically, a method was developed to make micron thick but irregular nickel coatings on iron, based on Reduction Expansion Synthesis (RES) chemistry. Previous success using RES processes to make sub-micron nickel, iron, and alloy particles provided a general direction to the program and led to the successful protocol....
Topics: DTIC Archive, Pelar,Christopher J, Naval Postgraduate School Monterey United States, metal...
During the Apollo Program, General Magnaplate Corporation developed process techniques for bonding dry lubricant coatings to space metals. The coatings were not susceptible to outgassing and offered enhanced surface hardness and superior resistance to corrosion and wear. This development was necessary because conventional lubrication processes were inadequate for lightweight materials used in Apollo components. General Magnaplate built on the original technology and became a leader in...
Topics: NASA Technical Reports Server (NTRS), LUBRICATION, METAL COATINGS, METALLURGY, TURBINE PUMPS,...
314
314
Jun 21, 2010
06/10
by
Ivashkevich, T. M.; Kupprevich, V. F.; Shcherbakova, T. A
texts
eye 314
favorite 0
comment 0
Free amino acids in soils
Topics: ALUMINUM ALLOYS, NICKEL, TEMPERATURE EFFECTS, METAL COATINGS, MIRRORS, SOLAR COLLECTORS, SURFACE...
Topics: DTIC Archive, OFFICE OF NAVAL RESEARCH EUROPEAN OFFICE FPO NEW YORK 09510, *METAL COATINGS,...
A study was conducted on the ultrahigh vacuum strain controlled by low cycle fatigue behavior of uncoated and CODEP B-1 aluminide coated Rene' 80 nickel-base superalloy at 1000 C (1832 F) and 871 C (1600 F). The results indicated little effect of coating or temperature on the fatigue properties. There was, however, a significant effect on fatigue life when creep was introduced into the strain cycles. The effect of this creep component was analyzed in terms of the method of strainrange...
Topics: NASA Technical Reports Server (NTRS), PROTECTIVE COATINGS, ULTRAHIGH VACUUM, CREEP PROPERTIES,...
Sprayed-metal coatings, applied with commercial metallizing equipment, for the protection of molybdenum against oxidation at 1700 and 1800 F were tested and evaluated. The procedures employed for applying and testing coatings are described. Tests with electroplated chromium coatings are also included. The results obtained and summarized in this report showed that 12 of the oxidation-resistant alloys investigated had the capacity to protect molybdenum against oxidation for at least 500 hours at...
Topics: DTIC Archive, Blanchard, J. R., CLIMAX MOLYBDENUM CO OF MICHIGAN DETROIT, *METAL COATINGS,...
Topics: DTIC Archive, Cleary, R E, UNITED AIRCRAFT RESEARCH LABS EAST HARTFORD CT, *METAL COATINGS,...
A performance evaluation was made of two, black nickel coated, flat plate solar collectors. Collector performance was determined under a simulated sun for a wide range of inlet temperatures, including the temperature required for solar powered absorption air conditioning. For a basis of comparison a performance test was made on a traditional, two glass, nonselective, black paint coated, flat plate collector. Performance curves and performance parameters are presented to point out the importance...
Topics: NASA Technical Reports Server (NTRS), METAL COATINGS, NICKEL, PERFORMANCE TESTS, SOLAR COLLECTORS,...
423
423
Jun 21, 2010
06/10
by
Biryukov, Yu. V., et al
texts
eye 423
favorite 0
comment 0
Historical development of liquid propellant rocket engines and aviation models
Topics: CORROSION PREVENTION, METAL COATINGS, OXIDATION RESISTANCE, TUNGSTEN, HIGH TEMPERATURE RESEARCH,...
Topics: DTIC Archive, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *METAL COATINGS, *COATINGS,...
Production of strong lightweight membrane structure by applying a thin reflective coating such as aluminum to a rotating cylinder, applying a mesh material such as nylon over the aluminum coating, coating the mesh overlying the aluminum with a polymerizing material such as a para-xylylene monomer gas to polymerize as a film bound to the mesh and the aluminum, and applying an emissivity increasing material such as chromium and silicon monoxide to the polymer film to disperse such material...
Topics: NASA Technical Reports Server (NTRS), METAL COATINGS, EMISSIVITY, MEMBRANE STRUCTURES, ROTATING...
HIPIMS (high power impulse magnetron sputtering) process utilizing I-PVD technology can produce high ionization, high flux, and high intensity plasma. The metal ions from the target can be used for substrate etching and for the deposition of improved quality coatings. MPP (modulated pulse power) is a variation of HIPIMS that increases the deposition rate through modulation of the pulse shape, intensity, and duration. In MPP, the pulse shape and duration and plasma perturbations affect the...
Topics: DTIC Archive, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS,...
An invention is described which deposits metal alloy films on a metal object. A glow discharge is established by applying a high voltage between an anode and a cathode object disposed in an inert gas atmosphere. An alloy of two or more metals is vaporized and the vapor injected into the glow discharge causing the alloy to be plated onto the cathode object.
Topics: NASA Technical Reports Server (NTRS), GLOW DISCHARGES, ION CONCENTRATION, METAL FILMS, VAPOR...
Kinetic Metallization(trademark) process deposits metal through low temperature particle impact. The method replaces liquid-based plating.
Topics: DTIC Archive, INOVATIA LABORATORIES LLC FAYETTE MO, *AIRCRAFT MAINTENANCE, *METAL COATINGS,...
1,627
1.6K
Jun 21, 2010
06/10
by
NON
texts
eye 1,627
favorite 0
comment 0
Exametnet meteorological rocket launchings and data dissemination - 1967 / tables
Topics: METAL COATINGS, SURFACE FINISHING, SURFACE PROPERTIES, SILICON, SILVER ALLOYS, SOLAR CELLS,...
This Technology Insertion (TI)/Industrial Process Improvement (IPI) Data Base Documentation Book for OO-ALC/MANPRC (Metal Coatings) Book 2 of 2 contains detailed information about layouts equipment and processes for this RCC (Resource Control Center).
Topics: DTIC Archive, MCDONNELL DOUGLAS MISSILE SYSTEMS CO ST LOUIS MO, *DATA BASES, BOOKS, STATISTICAL...
Molybdenum disulfide films 300 to 400 A thick were rf sputtered on aluminum and nickel surfaces at elevated, ambient, and liquid nitrogen temperatures. Electron transmission micrographs and electron diffraction patterns were taken to determine the structural growth. These transmission micrographs revealed that sputtered MoS2 films at ambient and elevated temperatures (320 and 150 C) formed an irregular network of ridges. The electron diffraction patterns of these films showed relatively sharp...
Topics: NASA Technical Reports Server (NTRS), ALUMINUM, METAL COATINGS, MOLYBDENUM DISULFIDES, NICKEL,...
A metal oxide coating is plated onto a metal substrate at the cathode from an acid solution which contains an oxidizing agent. The process is particularly useful for producing solar panels. Conventional plating at the cathode avoids the presence of oxidizing agents. Coatings made in accordance with the invention are stable both at high temperatures and while under the influence of high photon flux in the visible range.
Topics: NASA Technical Reports Server (NTRS), METAL OXIDES, PLATING, SUBSTRATES, CATHODES, METAL COATINGS,...
Topics: DTIC Archive, NAVAL AIR SYSTEMS COMMAND PATUXENT RIVER MD MATERIALS ENGINEERING DIV, *METAL...
Corrosion protection of high strength fasteners is of utmost importance due to the critical nature of structural loads transferred through them and their potential for galvanic corrosion. Therefore, adequate corrosion protection is a necessity to sustain both the structural integrity of fastener connections and to prevent preferential corrosion of connected members at the expense of galvanically-coupled fasteners. Traditionally, electroplated cadmium layers and hexavalent chromium rinses have...
Topics: DTIC Archive, LUNA INNOVATIONS INC BLACKSBURG VA, *FASTENINGS, *METAL COATINGS, *VAPOR DEPOSITION,...
A description is given of the electroplating of black chromium coating for use on instrument components to eliminate glare and to prevent corrosion. Plating is conducted in a solution of chromic anhydride and sodium nitrate for a period of 20 minutes at a current density of 30-60 amp/sq dm and a temperature of 15-40C. A lead-tin alloy (7 percent tin) is used as the anode, and the chromium oxide content in the solution is regularly checked by the Hull cell test for replenishment. Coating...
Topics: DTIC Archive, Hsu Hsiao-Feng,, FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH, *CORROSION...
For the purpose of determining the effectiveness of the aluminizing process on fabrics, the Material Laboratory investigated the resistance to thermal radiation offered by several metallized fabrics, submitted by the Minnesota Mining and Manufacturing Company
Topics: DTIC Archive, Banet,L, NAVAL APPLIED SCIENCE LAB BROOKLYN NY BROOKLYN, FIRE RESISTANT TEXTILES,...
A electronic device including lead attachment structure which permits operation of the devices over a wide temperature range is reported. The device comprises a core conductor having a thin coating of metal thereon whereby only a limited amount of coating material is available to form an alloy which bonds the core conductor to the device electrode, the electrode composition thus being affected only in the region adjacent to the lead.
Topics: NASA Technical Reports Server (NTRS), ATTACHMENT, DIODES, ELECTRODES, METAL COATINGS, BACKWARD WAVE...
This report results from a contracted tasking Technion - Israel Institute of Science and Technology as follows: The contractor will investigate non-chromium conversion coatings on aluminum. Conversion coatings are an important corrosion protector and allow for better adhesion of paint and other coatings. Finding an environmentally sound replacement to current conversion coatings is a high priority USAF goal.
Topics: DTIC Archive, Berkh, O, TECHNION - ISRAEL INST OF TECH HAIFA, *METAL COATINGS, *ALUMINUM, ISRAEL,...
The reflectance properties of black chrome electroplated on commercially electroplated tin were measured for various black chrome plating times for both the solar and infrared spectrum. The values of absorptance and emittance were calculated from the measured reflectance values. The results indicate that the optimum combination of the highest absorptance in the solar region and the lowest emittance in the infrared of the black chrome plated on commercially electroplated tin is obtained for a...
Topics: NASA Technical Reports Server (NTRS), CHROMIUM, SOLAR ENERGY ABSORBERS, ABSORBENTS, ELECTROPLATING,...
Tungsten-base composites coated with either nickel or copper were heat treated at elevated temperatures to produce a diffusion bond between the composite and the coat. At temperatures to 473 K, no diffusion bond was achieved and there was no improvement in low-temperature ductility. At temperatures above 920 K, the coat and base bonded and the ductility was improved. Microprobe analysis confirmed that a diffusion bond formed.
Topics: DTIC Archive, Zukas, E G, LOS ALAMOS NATIONAL LAB NM, *METAL COATINGS, *DIFFUSION BONDING, HEAT...
The test program was based on the evaluation of four unique solar collectors described below: (1) black nickel collector surface with a desiccant drying bed, (2) black nickel collector surface without a desiccant drying bed, (3) black chrome collector surface with a dessicant drying bed, and (4) black chrome collector surface without a desiccant drying bed. The test program included three distinct phases: Initial performance evaluation, natural environmental aging, and post-aging performance...
Topics: NASA Technical Reports Server (NTRS), CHROMIUM, NICKEL COATINGS, PERFORMANCE TESTS, SOLAR...
954
954
Jul 11, 2010
07/10
by
HORIGOME, T.; TANI, T
texts
eye 954
favorite 1
comment 1
THE USE OF SOLAR ENERGY, THE TECHNIQUES TO BE EMPLOYED, AND FUTURE PROSPECTS OF SOLAR ENERGY AS A WIDESPREAD ENERGY SOURCE ARE DISCUSSED. DIAGRAMS OF SOLAR POWER SYSTEMS ARE PRESENTED.
favoritefavoritefavoritefavorite ( 1 reviews )
Topics: CORROSION PREVENTION, SEA WATER, STEELS, ELECTROPLATING, METAL SURFACES, TIDE POWERED GENERATORS,...
Topics: DTIC Archive, GILLIG, F. J., CORNELL AERONAUTICAL LAB INC BUFFALO NY, *ALUMINUM ALLOYS, *CORROSION...
Chromium alloys were coated with silicon, aluminum, and boron by pack cementation. None of these simple coatings provided adequate nitridation-oxidation protection for a chromium +0.17 wt % yttrium alloy substrate as shown by a substantial increase in the ductile-brittle transition temperature after air exposure for 100 hr at 2100 degrees F (1420 K). Iron modified silicides coatings afforded good protection, holding the transition temperature of air exposed specimens to 3500 F (450 K) compared...
Topics: DTIC Archive, Stephens, Joseph R, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS...
500
500
May 22, 2011
05/11
by
NON
texts
eye 500
favorite 0
comment 0
The Committee on Microgravity Research (CMGR) was made a standing committee of the Space Studies Board (SSB) and charged with developing a long-range research strategy. The scientific disciplines contained within the microgravity program, and covered in this report, include fluid mechanics and transport phenomena, combustion, biological sciences and biotechnology, materials science, and microgravity physics. The purpose of this report is to recommend means to accomplish the goal of advancing...
Topics: COATING, PANELS, PLASTIC COATINGS, POLYVINYL CHLORIDE, STAINLESS STEELS, EXPOSURE, INFRARED...
Edge and surface modifications of niobium alloys were investigated prior to coating with Si-20Cr-20Fe and slurry composition modification for performance in a 1370 C ambient pressure slow cycle test. The best coating obtained was Si-20Cr-20Mn with an average life of 63 cycles, compared to 40 for Si-20Cr-20Fe on FS-85 (100 percent improvement in weight parity life). Edge beading extended the lives of Si-20Cr-20Fe-coated Cb-752 and FS-85 to 57 and 41 cycles respectively (50 and 20 percent...
Topics: NASA Technical Reports Server (NTRS), METAL COATINGS, NIOBIUM ALLOYS, SLURRIES, SURFACE PROPERTIES,...
