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Proceedings of the flat-plate solar array project research forum on photovoltaic metallization systems

Description: A Photovoltaic Metallization Research Forum, under the sponsorship of the Jet Propulsion Laboratory's Flat-Plate Solar Array Project and the US Department of Energy, was held March 16-18, 1983 at Pine Mountain, Georgia. The Forum consisted of five sessions, covering (1) the current status of metallization systems, (2) system design, (3) thick-film metallization, (4) advanced techniques and (5) future metallization challenges. Twenty-three papers were presented.
Date: November 15, 1983
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of BEACON technology. Quarterly report, April-June 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Experiments were continued this quarter with the objective of improving the carbon deposition efficiency using a Paraho retort off-gas mixture. Analysis has shown that the use of the Paraho off-gas to make hydrogen would be att… more
Date: March 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of BEACON technology. Quarterly report, October-December 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. During the quarter both SOHIO and TRW worked on catalysts which would suppress methane formation during steaming thus increasing the amount of hydrogen formed. At SOHIO a C77-K2 catalyst promoted with a Class II compound showed… more
Date: April 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurements of the deposition rates of radon daughters on indoor surfaces

Description: The deposition rates of radon daughters on indoor surfaces have been measured by exposing the window of a proportional counter to the air of a house with high concentrations of radon and its daughters. Deposition velocities for unattached RaA and RaB of approximately 4 mm sec/sup -1/ were obtained by dividing the deposition rates by the concentrations of unattached daughters in the air. These results agree with those obtained by other workers but are dependent on the assumptions made about the … more
Date: January 1, 1983
Creator: Toohey, R.E.; Essling, M.A.; Rundo, J. & Hengde, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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First wall and limiter lifetime in pulsed tokamak reactors

Description: This study concentrates on the structural integrity of certain reactor subsystems under cyclic operation to answer the question: how long a burn pulse is needed to achieve the benefits of steady-state operation. Component lifetime in the steady-state is limited by three effects: radiation damage, disruptions, and sputtering erosion. Cyclic operation modifies one of these (the number of disruptions may increase with the number of burn cycles) and introduces a fourth life limit, thermal fatigue. … more
Date: December 1, 1983
Creator: Ehst, D.; Majumdar, S.; Cha, Y. & Hassanein, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hard-facing with electro-spark deposition. Final report

Description: A common method to improve wear resistance of metals in rubbing contact is to increase their surface hardness. Electro-Spark Deposition is a process which uses capacitive discharge pulses of high current passing through a hard carbide electrode in contact with and scanning the metal surface to be hardened. The result is a thin, hard, adherent coating of carbide deposited with a minimum of heat influence on the substrate and a significant increase in wear life of the coated metal. Electro-Spark … more
Date: January 1, 1983
Creator: Kees, K.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of forest environmental measurements to estimate parameters of microclimate and air-pollution deposition-velocity models

Description: A method is described for estimating flux densities and deposition of gaseous pollutants for a period of a year or more, using data collected for a period of a few days. The estimates are based on models which characterize the transfer of gases from the atmosphere to the vegetation as a series of resistances and then use linear statistical submodels based on experimental data to relate the resistances to the surrounding environment. The models are shown to fit the experimental data reasonably w… more
Date: January 1, 1983
Creator: Murphy, C. E. Jr. & Lorenz, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MESOI Version 2. 0: an interactive mesoscale Lagrangian puff dispersion model with deposition and decay

Description: MESOI Version 2.0 is an interactive Lagrangian puff model for estimating the transport, diffusion, deposition and decay of effluents released to the atmosphere. The model is capable of treating simultaneous releases from as many as four release points, which may be elevated or at ground-level. The puffs are advected by a horizontal wind field that is defined in three dimensions. The wind field may be adjusted for expected topographic effects. The concentration distribution within the puffs is i… more
Date: November 1, 1983
Creator: Ramsdell, J. V.; Athey, G. F. & Glantz, C. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AEM/STEM analysis of vapor-deposited multilayered laser targets

Description: S(TEM) examinations were made to augment other types of measurements of absolute density. The structure of the 5 ..mu..m thick layers of aluminum and gold on aluminum laminate gold substrate was examined to establish film integrity, to characterize the microstructure, as well as to estimate the surface roughness of this multilayer material.
Date: January 1, 1983
Creator: Johnson, K. A.; Staudhammer, K. P.; Reeves, G. A. & Vesser, L. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Self-pumping impurity control by in-situ metal deposition

Description: A system for in-situ removal of helium by trapping in freshly deposited metal surface layers of a limiter or divertor has been studied. The system would trap helium on a limiter front surface, or a divertor plate, at low plasma edge temperatures, or in a limiter slot region, at high edge temperatures. Fresh material, introduced to the plasma and/or scrape-off zone, would be added at a rate of about five times the alpha production rate. The material would be reprocessed periodically, e.g., once … more
Date: May 1, 1983
Creator: Brooks, J. N. & Mattas, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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X-ray diffraction and doping studies of Ga(AsP)/GaP strained-layer superlattices grown by metal organic chemical vapor deposition

Description: Metal organic chemical vapor deposition has been used to prepare strained-layer superlattices in the GaAs + GaP system. Both the composition and the layer thickness can be determined by x-ray diffraction. For very thick layers a direct measure of the strain in the layers can be obtained by x-ray diffraction. H/sub 2/Se and Zn(C/sub 2/H/sub 5/)/sub 2/ have been used to prepare n- and p-type superlattices, respectively. Carrier concentrations in the range of 5 x 10/sup 16/ to 5 x 10/sup 18/ cm/su… more
Date: January 1, 1983
Creator: Biefeld, R.M.; Osbourn, G.C.; Gourley, P.L.; Fritz, I.J. & Zipperian, T.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Auger and depth profile analysis of synthetic crystals for dispersion of soft x-rays

Description: Numerous samples have been fabricated and analyzed as part of a program to produce soft x-ray dispersion elements for various laboratory applications. The majority of this work has centered around the carbon/tungsten system, although several other low-Z/high-Z pairs have been investigated. This report describes the development of certain vacuum-deposition techniques for fabricating these dispersion elements, based upon results obtained from x-ray reflectivity measurements and Auger depth-profil… more
Date: January 1, 1983
Creator: Rachocki, K. D.; Brown, D. R.; Springer, R. W. & Arendt, P. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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First-wall-coating candidates for ICF reactor chambers using dry-wall protection only

Description: Twenty pure metals were considered as potential candidates for first-wall coatings of ICF reactor chambers. Seven were found to merit further consideration based on the results of computer-code calculations of figures-of-merit. The seven are rhenium, iridium, molybdenum, chromium, tungsten, tantalum, and niobium (listed in order of decreasing values of figures-of-merit). The calculations are based on mechanical, thermal, and vacuum vaporization engineering constraints. A number of alloys of the… more
Date: January 1, 1983
Creator: Sink, D.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SIMS study of compositional changes observed in a PuO/sub 2/ heat source cladding alloy

Description: Secondary ion mass spectrometry (SIMS) has been used to investigate changes that occur in an advanced Ir-0.3W alloy during high temperature aging. This alloy is used to clad /sup 238/PuO/sub 2/ heat sources used in thermoelectric generators for deep space reconnaissance satellites. Long-term direct contact with PuO/sub 2/ at 1400/sup 0/C leads to physical and chemical changes within the cladding alloy that affect its metallurgical properties. SIMS was used to show that Cr, Fe, Ni, and in some c… more
Date: January 1, 1983
Creator: Christie, W. H.; Taylor, D. H.; Eby, R. E. & Pavone, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Modification of Alloy Surface Composition by Segregation Processes as a Means of Impurity Control in Fusion Devices

Description: We are investigating the use of surface segregation in alloys as a means of producing low Z coatings which are self-sustaining in a reactor environment, present no thermal barrier to the substrate, and avoid mechanical problems associated with the interface region. Several candidate materials have emerged from our calculations, including alloys of copper, vanadium and tungsten. The segregation calculations, light and heavy ion sputtering properties and thermodynamic properties of these material… more
Date: January 1, 1983
Creator: Krauss, A. R.; Gruen, D. M. & DeWald, A. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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New and Improved Dispersion and Recovery Techniques for Slurry Phase Catalysis. Quarterly Report, October 1, 1983-December 31, 1983

Description: This quarterly report covers an extensive review of the literature in the area of catalyst deactivation and regeneration. The literature review, which is presented here in three sections, namely, carbonaceous deposit formation, metal deposit formation and methods of analysis and regeneration, served as an invaluable aid in the initiation of experimental work required to fulfill the task objectives. Since the literature survey is applicable to all five tasks, no attempt has been made to divide i… more
Date: January 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radial Flow of Pressured Hot Water Through Narrow Cracks

Description: Geothermal wells discharging hundreds of tons/hour of steam-water mixtures may be supplied at depth from one very narrow crack of width 1 to 2 mm, or alternatively, from some hundreds of hairline cracks. In the former case, turbulent flow takes place out to tens of meters from the well while the sum of frictional and kinetic pressure-drop indicates the flashing distance to be of the order of 10 cm from the well wall for pressure-temperature equilibrium. However it is unlikely that equilibrium o… more
Date: December 15, 1983
Creator: James, Russell
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of BEACON technology. Quarterly report, July-September 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Catalyst development at SOHIO showed that larger quantities (4 kg) of satisfactory C77-K2 catalyst could be prepared. Several preparation modifications were studied, and, although some showed satisfactory results, none were suf… more
Date: April 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of thin-film absorber coatings to enhance the sensitivity of fast pyroelectric detectors

Description: Multilayer optical absorber coatings may be applied to the faces of thermal detectors to enhance their sensitivity at wavelengths at which the detector material exhibits low absorptivity. These coatings have extremely low mass (<100 ..mu..g/cm/sup 2/) and the absorptance may be varied from 0 to near 100%. The design of these coatings is discussed, based on considerations derived from the detector application and experimental data is presented showing the effect on sensitivity.
Date: January 1, 1983
Creator: LaDelfe, Peter C.; Stotlar, S. C. & Edgett, L. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fabrication of ion source components by electroforming

Description: Several components of the Oak Ridge National Laboratory (ORNL)/Magnetic Fusion Test Facility (MFTF-B) ion source have been fabricated utilizing an electroforming process. A procedure has been developed for enclosing coolant passages in copper components by electrodepositing a thick (greater than or equal to 0.75-mm) layer of copper (electroforming) over the top of grooves machined into the copper component base. Details of the procedure to fabricate acceleration grids and other ion source compo… more
Date: January 1, 1983
Creator: Schechter, D. E. & Sluss, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Session 21: Disposal of Flashed Brine Dosed with CaCO3 Scale Inhibitor: What Happens When the Inhibitor is Exhausted?

Description: Inhibited, flashed brine is thermodynamically poised to deposit CaCO{sub 3}. Eventually the scale inhibitor will be overcome by dilution in native reservoir fluid, sorption on rocks, slow overgrowth of CaCO{sub 3}, decomposition, or some combination of processes. Consequences to the reservoir which receives the fluid apparently have not been previously explored. However, Huff-Puff tests (monitored backflow of injected tracers), carried out at East Mesa in the summer of 1983, have provided a sta… more
Date: December 1, 1983
Creator: Michels, D.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Coating Processes Group (Electrochemical Processes Lab and Vacuum Processes Lab) Materials Fabrication Division. Progress report, November 1982-January 1983. [Coatings development for weapons, lasers, magnetic fusion, and other programs]

Description: Some technical highlights are given for the following programs: Weapons Program - we are continuing to support the aluminum ion plating effort for the W-84 both at Y-12 and in-house; Weapons Program - a number of electroformed parts have been supplied for Crowdie; Nuclear Test Program - heavy support from VPL in vacuum engineering activities for Diamond Ace, Tomme and Cabra; Nuclear Design Program - heavy effort was supplied by VPL in the coating of various foils with lithium fluoride; Laser Pr… more
Date: January 31, 1983
Creator: Dini, J. W. & Romo, J. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pacific Northwest Laboratory annual report for 1982 to the DOE Office of Energy Research. Part 3. Atmospheric sciences

Description: This report is organized in terms of generic studies: theoretical studies of atmospheric processes; pollutant characterizations and transformation; boundary layer meteorology; and dispersion, deposition and resuspension of atmospheric pollutants.
Date: February 1, 1983
Creator: Elderkin, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary study of the electrolysis of aluminum sulfide in molten salts

Description: A preliminary laboratory-scale study of the electrolysis of aluminum sulfide in molten salts investigated the (1) solubility of Al/sub 2/S/sub 3/ in molten salts, (2) electrochemical behavior of Al/sub 2/S/sub 3/, and (3) electrolysis of Al/sub 2/S/sub 3/ with the determination of current efficiency as a function of current density. The solubility measurements show that MgCl/sub 2/-NaCl-KCl eutectic electrolyte at 1023 K can dissolve up to 3.3 mol % sulfide. The molar ratio of sulfur to aluminu… more
Date: February 1, 1983
Creator: Minh, Nguyen Quang; Loutfy, Raouf O. & Yao, Neng-Ping
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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