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Origin of Uranium Deposits

Description: Report discussing uranium deposits and their origins. Sections include information regarding geochemistry of uranium, occurrence of uraniferous deposits, uraniferous igneous rocks, uranium in vein deposits, sandstone-type deposits, uraniferous coal and associated carbonaceous shale, and uraniferous marine sedimentary rocks.
Date: March 1955
Creator: McKelvey, V. E.; Everhart, D. L. & Garrels, R. M.
Partner: UNT Libraries Government Documents Department

Notes on the Geology of Uranium

Description: Report outlining information regarding uranium and geology of uranium. Sections include geochemistry of uranium, influence of orogeny on concentration of uranium, types of uranium deposits, and general criteria for prospecting.
Date: March 1956
Creator: Duncan, D. C.; Danilchik, Walter; Staatz, M. H.; Barnes, Harley & McKelvey, V. E.
Partner: UNT Libraries Government Documents Department

Preliminary Study on Uranium Favorability of the Brushy Basin Member of the Morrison Formation, Southeastern Utah and Southwestern Colorado

Description: This report is a preliminary evaluation of the uranium resources of the Brushy Basin Member of the Morrison Formation of Late Jurassic age in southwestern Colorado and southeastern Utah. The project, which began July 1, 1976, and was completed October 1, 1976, was carried out by the Bendix Field Engineering Corporation (BFEC) for the Grand Junction Office of the U.S. Energy Research and Development Administration (ERDA).
Date: March 1978
Creator: Dubyk, W. S.; Gallagher, Gerald L. & Edmond, C. L.
Partner: UNT Libraries Government Documents Department

The Development of Uranium Carbide as a Nuclear Fuel: Final Report

Description: From introduction: This is the final report on uranium carbide studies sponsored by the United States Atomic Energy Commission and performed by United Nuclear Corporation at its New Haven Research Laboratories during the period from May 1959 to January 1964. The work was part of the Commission's Fuel Cycle Development Program aimed at lowering the cost of nuclear power by improving fuel cycle technology. At the inception of this program in 1959, some work was in progress on uranium carbide. Little was known of making a satisfactory fuel in quantity or of how it would perform either in-pile or out-of-pile. The United Nuclear program was designed with no specific reactor in mind and was aimed at furnishing information over a broad spectrum.
Date: February 29, 1964
Creator: Crane, J. & Gordon, E.
Partner: UNT Libraries Government Documents Department

Dillon Quadrangle, Montana and Idaho

Description: From abstract: All geologic conditions in the Dillon Quadrangle (Montana and Idaho) have been thoroughly examined, and, using National Uranium Resource Evaluation criteria, environments are favorable for uranium deposits along fractured zones of Precambrian Y metasediments, in the McGowan Creek Formation, and in some Tertiary sedimentary basins.
Date: April 1981
Creator: Wodzicki, Antoni & Krason, Jan
Partner: UNT Libraries Government Documents Department

Uranium Tetrachloride Two One-Year Inhalation Toxicity Studies of Animals at 0.2 and 0.05 mg U/m3

Description: The following report analyzes studies of chronic inhalation toxicity from uranium tetrachloride dust in animals who were exposed daily for a year for the purpose of determining "borderline" or safe levels of exposure for the duration of one year.
Date: 1948
Creator: Ashenburg, Norman J.; Rothermel, J. F.; Baxter, Robert; Eriksen, Nils; Cobler, John G.; Harrison, William N. et al.
Partner: UNT Libraries Government Documents Department

The Preparation and Properties of Uranium Trifluoride

Description: From abstract: "The means of preparing uranium trifluoride are discussed. The most practical method is the reduction of uranium tetrafluoride with uranium although reduction with hydrogen or atomic hydrogen may also be feasible...A literature survey and discussion of other means of preparation are given."
Date: 1949
Creator: Warf, James C.
Partner: UNT Libraries Government Documents Department

Oriented Dioxide Films on Uranium

Description: This report deals with the formation of oriented layers of an oxide which form during oxidation without any evident relationship to the parent and underlying metal. It is offered without explanation or proposed mechanism.
Date: July 6, 1954
Creator: Waber, James T. & O'Rourke, J. A.
Partner: UNT Libraries Government Documents Department

A Method for Rolling Uranium Foil

Description: "This report gives briefly a rather simple method for fabricating foils from uranium buttons. Two log sheets one of a U-238 run and one of a U-255 run are given."
Date: October 21, 1947
Creator: Bernard, George L., (Jr.)
Partner: UNT Libraries Government Documents Department

The Production of Uranium Metal by Metal Hydrides Incorporated

Description: Synopsis: Metal Hydrides Incorporated was a pioneer in the production of uranium metal on a commercial scale and supplied it to all the laboratories interested in the original research, before other methods for its production were developed. Metal Hydrides Inc. supplied the major part of the metal for the construction of the first experimental pile which, on December 2, 1942, demonstrated the feasibility of the self-sustaining chain reaction and the release of atomic energy.
Date: 1943
Creator: Alexander, P. P.
Partner: UNT Libraries Government Documents Department

Critical Strain Value for Alpha Recrystallized Rolled Uranium Sheet

Description: Abstract: "The percentage strain at which, or immediately higher than which, grain growth occurs on cold worked alpha recrystallize uranium sheet, appears to be at approximately 2-1/2 percent reduction in thickness. Grain growth from 20 microns to over 150 microns has been indicated for this region. This phenomena is especially noteworthy when deep drawn uranium shapes are to be reheated for a coining or restriking operation."
Date: 1957
Creator: Hanks, Gale S.
Partner: UNT Libraries Government Documents Department

Density and Refractive Index of Uranyl Fluoride Solutions

Description: "In the course of an ultracentrifugal investigation of uranyl fluoride solutions, their densities and refractive indices were measured as a function of concentration. The measurements were carried out near 25 and 30 C and if necessary extrapolated to 25.0 and 30.0 C from the observed temperature coefficients. Most density data were obtained pycnometrically (25 cc samples) and a few gradient tubes. The refractive index measurements were carried out with a Bausch and Lomb dipping refractometer (calibrated with "known" solutions) using sodium-D light. The materials used and the analytical procedures were described earlier. Although the accuracy of the density measurements was approximately one part in 10,000, the accuracy of the determinations at high UO2F2 concentration is considerably less, in view of the uncertainty in the uranium analyses."
Date: 1953
Creator: Johnson, James S. & Kraus, Kurt A.
Partner: UNT Libraries Government Documents Department

The Determination of Adsorbed Moisture on Uranium and Uranium Oxide: A New Method for Moisture Determinations

Description: Abstract: "A method is described for determining moisture on uranium and uranium oxides. This method should also be applicable to solid samples which, when heated, do not decompose to form water or liberate a substance which will react with Fischer's reagent. The method should be especially applicable to samples which are insoluble in alcohol or Karl Fischer reagent under normal titration conditions, or which will themselves react with the reagent. The amount of moisture on uranium and uranium oxide was found to be 0.02% except when the oxide was found to be 0.02% except when the oxide source was uranyl sulfate. In this case, the moisture content was found to be 0.1%. Modifications of the procedure and apparatus are presented for improving the accuracy and shortening the time necessary for the determination."
Date: April 22, 1953
Creator: Hibbits, James O. & Zucker, Donald
Partner: UNT Libraries Government Documents Department

Ultracentrifugal Measurements on Uranyl Fluoride Solutions

Description: Abstract: "Activity coefficient ratios for UO2F2 were measured at 30 C by ultracentrifugation to equilibrium. The method was checked with CdI2. The results for UO2F2 confirm the hypothesis of a monomer-diner equilibrium which was used previously to interpret the freezing point depressions of UO2F2 solutions. The dimerization constant at 30 C was found to be somewhat greater then at the freezing point. The proportionality constants for the dependence of the logarithm of the activity coefficients on molality were found to be essentially temperature independent. The heat and entropy of dimerization were estimated. Experiments in the presence of an indifferent electrolyte (NaClO4) support the assumption that dissociation into ions is slight. In potassium fluoride solutions, uranyl fluoride dimerizes more extensively than in water solutions."
Date: 1952
Creator: Johnson, James S. & Kraus, Kurt A.
Partner: UNT Libraries Government Documents Department