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Investigation of mechanically hard, chemically inert antireflection coatings for photovoltaic solar modules. Final technical report, April 1, 1980-March 31, 1981

Description: The overall objective of this program is to determine the optical properties of i-Carbon (diamond-like) films and determine if these films can be developed into antireflecting (AR) coatings for silicon solar cells. The i-C films have been produced on glass, silicon, and KCl by radio frequency (RF) plasma decomposition of the alkane gases. Films were also produced on silicon solar cells by low-energy ion beam techniques. These coatings did not perform as well as those made from hydrocarbon gases… more
Date: March 31, 1981
Creator: Moravec, T.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advances in materials science, Metals and Ceramics Division. Triannual progress report, October 1979-January 1980

Description: Progress is summarized concerning magnetic fusion energy materials, laser fusion energy, aluminium-air battery and vehicle, geothermal research, oil-shale research, nuclear waste management, office of basic energy sciences research, and materials research notes. (FS)
Date: March 31, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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1988 Wet Deposition Temporal and Spatial Patterns in North America

Description: The focus of this report is on North American wet deposition temporal patterns from 1979 to 1988 and spatial patterns for 1988. It is the third in a series of reports that investigate the patterns of annual precipitation-weighted average concentration and annual deposition for nine ion species: hydrogen, sulfate, nitrate, ammonium, calcium, chloride, sodium, potassium, and magnesium. Mosaic maps, based on surface estimation using kriging, display concentration and deposition spatial patterns of… more
Date: March 1, 1992
Creator: Simpson, J. C.; Olsen, A. R. & Bittner, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of photoelectrochemical cells based on compound semiconductors and nonaqueous electrolytes. Semiannual report, May 1, 1981-October 31, 1981

Description: A reproducible procedure for chemical bath deposition (CBD) of CdSe has been documented in detail, allowing a consistent production of photoelectrode yielding 5.5 to 6.5% conversion efficiency in alkaline polysulfide electrolyte (employing a tungsten halogen lamp/KG-2 filter solar simulated light source). The CBD films of n-CdSe on Ti have achieved an efficiency of approx. 10% under both solar simulated and real sunlight conditions using an Fe(CN)/sub 6//sup -3///sup -4/ electrolyte at pH 13. F… more
Date: March 1, 1982
Creator: Rauh, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Simple method for the calculation and use of CVD phase diagrams with applications to the Ti-B-Cl-H system, 1200 to 800/sup 0/K

Description: A simple method for calculating multi-component gas-solid equilibrium phase diagrams for chemical vapor deposition (CVD) systems is presented. The method proceeds in three steps: dtermination of stable solid assemblages, evaluation of gas-solid stability relations, and calcuation of conventional phase diagrams using a new free energy minimization technique. The phase diagrams can be used to determine (1) bulk compositions and phase fields accessible by CVD techniques; (2) expected condensed pha… more
Date: March 1, 1980
Creator: Randich, E. & Gerlach, T. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pinellas Plant environmental monitoring report, 1981

Description: The effluent and environmental monitoring programs maintained by the Pinellas Plant are designed to determine the efficiencies of treatment and control mechanisms, to provide measurements of discharge concentrations for comparison with applicable standards, and to assess the concentrations of these discharges in the environment. Small quantities of tritium gas, tritium oxide, carbon-14 labeled solvent and krypton-85 gas were released from the plant during the year. Average maximum ground level … more
Date: March 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of selected chemical processes for production of low-cost silicon: Phase III. Silicon Material Task, Low-Cost Solar Array Project. Sixteenth/seventeenth quarterly progress report, July-December 31, 1979

Description: The method under development for the production of semiconductor grade silicon is based on the zinc vapor reduction of silicon tetrachloride in a fluidized bed of seed particles. Construction of the PDU was completed during the report period, the fluidized-bed reactor was coated internally with silicon/SiC, and the operation of several systems was checked out. However, problems with the zinc feed system, unrelated to its basic operability, delayed introduction of zinc vapor to the PDU. At the e… more
Date: March 7, 1980
Creator: Blocher, J.M. Jr. & Browning, M.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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4. pi. physics. [/sup 40/Ar + KCl, 0. 4 to 1. 8 GeV/A]

Description: Exclusive ..pi../sup -/ and charged-particle production in collisions of /sup 40/Ar on KCl are studied at incident energies from 0.4 to 1.8 GeV/A. The correlation between the ..pi../sup -/ and the total charged particle multiplicity confines the reaction along a narrow ridge with no exotic islands of pion production. For high multiplicities the system reaches the total disintegration of target and projectile into singly charged fragments and pions. Every 200 MeV/A datum was taken with a central… more
Date: March 1, 1980
Creator: Sandoval, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evaluation of a precipitation-ion exchange process for treatment of laundry waste

Description: Bench-scale pilot plant studies were conducted to evaluate chemical coagulation and ion exchange for decontamination of 2724-W laundry wastewater. Chemical coagulation is accomplished at pH 11 to avoid complexant problems and assure good transuranic radionuclide removals. Clinoptilolite is used to remove cesium and strontium. Results of the pilot plant studies are summarized as follows: Decontamination factors of 70 (strontium) and more than 100 (cesium) were achieved by chemical coagulation an… more
Date: March 15, 1977
Creator: Mercer, B. W. & Ames, L. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Macro-encapsulation of heat storage phase-change materials for use in residential buildings. Fifth quarterly progress report, September 29, 1977-December 29, 1977

Description: Objectives are to assess the feasibility of macro-encapsulated PCM's for residential solar systems, to develop and evaluate such materials. Encapsulant materials under consideration are multilayer flexible plastic films, steel cans, and plastic bottles. PCM's under study are Mg(NO/sub 3/)/sub 2/.6H/sub 2/O, stearic acid, Mg(NO/sub 3/)/sub 2/.6H/sub 2/O-NH/sub 4/NO/sub 3/. A study of the storage capability of CaCl/sub 2/.6H/sub 2/O encapsulated in polyethylene bottles has been completed.
Date: March 1, 1978
Creator: Lane, G. A.; Warner, G. L.; Hartwick, P. B. & Rossow, H. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Speciation of Sulfur in Marine Cloud Droplets and Particles: Analysis of Individual Particles from Marine Boundary Layer over the California Current

Description: Detailed chemical speciation of the dry residue particles from individual cloud droplets and interstitial aerosol collected during the Marine Stratus Experiment (MASE) was performed using a combination of complementary microanalysis techniques. Techniques include computer controlled scanning electron microscopy with energy dispersed analysis of X-rays (CCSEM/EDX), time-of-flight secondary ionization mass spectrometry (TOF-SIMS), and scanning transmission X-ray microscopy with near edge X-ray ab… more
Date: March 12, 2008
Creator: William R. Wiley Environmental Sciences Laboratory, Pacific Northwest National Laboratory; Gilles, Mary K; Hopkins, Rebecca J.; Desyaterik, Yury; Tivanski, Alexei V.; Zaveri, Rahul A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Corrosion behavior of experimental and commercial nickel-base alloys in HCl and HCl containing Fe3+

Description: The effects of ferric ions on the corrosion resistance and electrochemical behavior of a series of Ni-based alloys in 20% HCl at 30ºC were investigated. The alloys studied were those prepared by the Albany Research Center (ARC), alloys J5, J12, J13, and those sold commercially, alloys 22, 242, 276, and 2000. Tests included mass loss, potentiodynamic polarization, and linear polarization.
Date: March 1, 2006
Creator: Holcomb, G. R.; Covino, B. S., Jr.; Bullard, S. J. & Ziomek-Moroz, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The preparation of accelerator targets by the evaporation of acetate-organic solutions in the presence of NH/sub 3/ gas

Description: The chemical methods described in this paper have been developed for preparation of isotopic targets for bombardment by accelerator-produced ions. Three systems are compared: nitrate-, chloride-, and acetate-organic solutions. The best method was found to be the metallic acetate-organic solution system, evaporated onto the substrate in the presence of ammonia gas. A detailed procedure is given for this method. The targets obtained by the acetate-organic solution system are uniform and adherent.… more
Date: March 1, 1987
Creator: Cai, S.Y.; Ghiorso, A. & Hoffman, D.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Glass melter off-gas system pluggages: Cause, significance, and remediation

Description: Liquid high-level nuclear waste will be immobilized at the Savannah River Site (SRS) by vitrification in borosilicate glass. The glass will be produced in the Defense Waste Processing Facility (DWPF) where the glass will be poured into stainless steel canisters for eventual disposal in a geologic repository. Experimental glass melters used to develop the vitrification process for immobilization of the waste have experienced problems with pluggage of the off-gas line with solid deposits. Off-gas… more
Date: March 1, 1991
Creator: Jantzen, Carol M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electron Transfer Reactions of Excited Dyes With Metal Complexes. Progress Report, March 1, 1978-February 28, 1979. [Iron-Methylene Blue]

Description: An intense absorption band of /sup 3/MBH/sup 2 +/ at 700nm was characterized in several media and its pK/sub A/ was measured to be 7.17 +- .1 in water. Flash photolysis show that semiethylene blue, MBH/sup +/, formed by quenching /sup 3/MBH/sup 2 +/ with Fe/sub II/(H/sub 2/O)/sub 6//sup 2 +/, decays by disproportionation at a diffusion-controlled rate. Rates of decay of the photostationary state of solutions of MB/sup +/ and Fe/sup II/(H/sub 2/O)/sub 6//sup 2 +/ in acidic media were measured us… more
Date: March 15, 1979
Creator: Lichtin, N. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental monitoring at Argonne National Laboratory. Annual report for 1984

Description: The results of the environmental monitoring program at Argonne National Laboratory for 1984 are presented and discussed. To evaluate the effect of Argonne operations on the environment, measurements were made for a variety of radionuclides in air, surface water, ground water, soil, grass, bottom sediment, and milk; for a variety of chemical constituents in surface water, ground water, and Argonne effluent water; and of the environmental penetrating radiation dose. Sample collections and measure… more
Date: March 1, 1985
Creator: Golchert, N.W.; Duffy, T.L. & Sedlet, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery

Description: The Rocky Flats Plant is introducing the use of dicesium hexachloroplutonate (DCHP) into the Molten Salt Extraction Process (MSE). DCHP (Cs/sub 2/PuCl/sub 6/) extracts americium from molten plutonium metal into a molten calcium chloride matrix. The DCHP is produced by precipitating plutonium (IV) from hydrochloric acid with cesium chloride. Before production of the DCHP began, we performed a pilot-scale test to determine yields, track impurities, and test filtrate recovery for the proposed proc… more
Date: March 15, 1989
Creator: Muscatello, A. C.; Stevens, J. R.; Killion, M. E.; Valdez, J. D. & Ames, R. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Kinetics of silica deposition from simulated geothermal brines

Description: Supersaturated brines were passed through columns packed with several forms of silica (crystalline ..cap alpha.. quartz, polycrystalline ..cap alpha.. quartz, and porous Vycor). Also, silica deposition on ThO/sub 2/ microspheres and titanium powder was studied under controlled conditions of supersaturation, pH, temperature, and salinity. The residence time was varied by adjustments of flow rate and column length. The silica contents of the input and effluent solutions were determined colorimetr… more
Date: March 1, 1980
Creator: Bohlmann, E.G.; Mesmer, R.E. & Berlinski, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of anions in geological brines using ion chromatography

Description: Ion chromatographic procedures for the determination of the anions bromide, sulfate, nitrite, nitrate, phosphate, and iodide in brine samples have been developed and are described. The techniques have been applied to the analysis of natural brines, and geologic evaporites. Sample matrices varied over a range from 15,000 mg/L to 200,000 mg/L total halogens, nearly all of which is chloride. The analyzed anion concentrations ranged from less than 5 mg/L in the cases of nitrite, nitrate, and phosph… more
Date: March 1, 1985
Creator: Merrill, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Water quality in the vicinity of Fenton Hill, 1987 and 1988. [Fenton Hill site]

Description: Water-quality data have been collected since 1974 from established surface- and ground-water stations at, and in the vicinity of, Fenton Hill (site of the Laboratory's Hot Dry Rock Geothermal Project). The site is located on the southwest edge of the Valles Caldera in the Jemez Mountains. To determine the chemical quality of water, data were collected in 1987 and 1988 from 13 surface-water stations and 19 ground-water stations. The classification of the water quality is made on the basis of pre… more
Date: March 1, 1991
Creator: Purtymun, W.D.; Ferenbaugh, R.W.; Maes, M.N. & Williams, M.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Direct conversion of methane to C sub 2 's and liquid fuels

Description: The objectives of the project are to discover and evaluate novel catalytic systems for the conversion of methane or by-product light hydrocarbon gases either indirectly (through intermediate light gases rich in C{sub 2}'s) or directly to liquid hydrocarbon fuels, and to evaluate, from an engineering perspective, different conceptualized schemes. The approach is to carry out catalyst testing on several specific classes of potential catalysts for the conversion of methane selectively to C{sub 2} … more
Date: March 12, 1990
Creator: Warren, B. K.; Campbell, K. D.; Matherne, J. L. & Kinkade, N. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Valence effects on solubility and sorption: the solubility of Tc(IV) oxides

Description: The solubilities of technetium (IV) oxides have been determined in solutions of NaCl, HCl, and synthetic groundwaters in the pH range 0 to 10. Oxides were prepared either by electroreduction from Tc(VII) solutions onto platinum electrodes or by precipitation of Tc from Tc(VII) solutions using hydrazine. In some of the determinations, the oxide was precipitated onto purified sand by use of hydrazine. The oxide-covered sand was then placed into a column and the test solution continuously recircul… more
Date: March 1, 1986
Creator: Meyer, R. E.; Arnold, W. D. & Case, F. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hanford Contaminated Sediment Stabilization Studies

Description: The major problems with radionuclide waste sites in the 200 Area plateau on the Hanford Reservation is the high degree of toxicity or Hazard Index (HI). Transport Factors (TF) are fortunately low but can increase with time and certainly with episodic events such as explosions or earthquakes. Two major tests involving surface affixation were sponsored by the Atlantic Richfield Hanford Company, one by Dowell using M-166 and the other by Battelle-Northwest comparing many different surface affixant… more
Date: March 1, 1977
Creator: Bruns, L.E.; Key, K.T. & Higley, B.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sizing a water softener for aquifer thermal energy storage

Description: In aquifer thermal energy storage (ATES) installations, ground water is circulated between an aquifer and heat exchangers via a well field. It is often necessary to soften the water to prevent carbonate scaling in pipes, heat exchangers, and well screens. Most ATES projects requiring water softening will be best served by using synthetic ion-exchange resins. The size of the resin beds, the resin regeneration cycle, and the amount of NaCl brine used in each regeneration depend on several factors… more
Date: March 1, 1993
Creator: Hall, S. H. & Jenne, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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