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in subjects: "Thallium Alloys"  
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Paths for current flow in polycrystalline high temperature superconductors

Description: Determinations from x-ray and electron microdiffraction studies of the populations and geometrical arrangements of small angle grain boundaries in Bi-2223 and Bi-2212 conductors and Tl-1223 deposits suggest that current flow in these polycrystalline materials is percolative in character. Comparison of measured misorientation angle distributions to calculated distributions suggest that not only texture but also grain boundary energy is important in increasing the number of small angle grain boun… more
Date: December 1995
Creator: Kroeger, D. M.; Goyal, A. & Specht, E. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Processing of Mo-Si-B intermetallics by extrusion and oxidation properties of the extruded Tl-MoSi{sub 2}-MoB System

Description: An extrusion process was developed that is able to consistently produce large quantities of Mo-Si-B rods without the presence of defects. Binder removal from the extruded rods was studied in detail and it was determined that heating rates on the order of 0.02{degree}/minute (1.2{degree}/hour) are necessary to remove the binder without the formation of defects. This low heating rate resulted in debinding times in excess of 70 hours (approximately 3 days). Wicking was investigated as a means to d… more
Date: November 8, 1999
Creator: Summers, Eric
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Argonne National Laboratory Chemical Engineering Division Summary Report: July, August, September 1960

Description: 9 : : 7 : 7 9 : 5 5 ? 5 9 G -- 8 ; 8 ; = -activity levels of the melt-refining process for EBR-II core fuel was completed. An experiment was also completed on the evolution of fission- product krypton and xenon from an irradiated fuel pim as it was heat to a temperature above the melting point. In tests of alternate materials for use in a meltrefining furnace, a fibrous potassium titanate grain retainer was found to be a very effective heat insulator, but to have less strength than nigid Fibenf… more
Date: October 1961
Creator: Argonne National Laboratory. Chemical Engineering Division.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal and Electrical Measurements on Solids at Low Temperatures

Description: The following research is reported: thermal conductivity of electron- irradiated and additively colored MgO; thermal conductivity of Pb films in the intermediate state; thermal conductivity of neutron-irradiated pyrolytic graphite; specific heat of (CH/sub 3/)/sub 4/NMnCl/sub 3/; and thermal conductivity of normal and superconducting Pb-- Tl alloys (1 and 20% Tl). (22 references, 10 figures) (DLC)
Date: February 1, 1974
Creator: Weinstock, Harold
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrocatalytic activity and surface properties of tungsten bronzes

Description: The electrocatalytic activities of sodium tungsten bronzes, including high purity crystals, platinum doped crystals, and platinum plated crystals, have been measured for oxygen reduction in acid solution. In addition, a survey of the electrocatalytic activities and general electrochemical properties of other alkali tungsten bronzes, thalium tungsten bronze, and tungsten trioxide were investigated and compared to sodium tungsten bronze. All measurements were done on single crystals. Pure sodium … more
Date: December 1, 1977
Creator: Weber, M.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron scattering study at high pressure of the phonon softening in lead

Description: The shift in the traverse phonon modes propagating along (zeta,0,0) and (zeta,zeta,zeta) in Pb have been measured up to pressures of 1.75 GPa (..delta..a/a/sub 0/ approx. equal to -0.0125), and little change in the softening of the (zeta,0,0,) mode was observed. As the superconducting transition temperature and the electron-phonon coupling decrease substantially in this range, the relation of phonon softening to lambda in Pb-Tl alloys is questioned.
Date: January 1, 1977
Creator: McWhan, D.B.; Dynes, R.C. & Shapiro, S.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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