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Uniformly Reactive Uranium Dioxide from a Single Oxidation-Reduction Cycle

Description: Abstract: By use of a modified thermobalance and reactor as the primary experimental tool for sample preparation and evaluation, a process has been developed by which parent uranium feed materials of a widely variable reactivity and composition may be converted to a uniformly reactive uranium dioxide.
Date: August 28, 1963
Creator: Orrick, N. C.; Jones, C. G.; Hale, C. F.; Barber, E. J. & Rapp, Karl E.
Partner: UNT Libraries Government Documents Department

Ceramic Investigations of UO₂

Description: This report covers the progress made on an intensive program to develop and evaluate UO2 as a possible fuel element for the PWR.
Date: June 16, 1955
Creator: Allison, Adrian G. & Duckworth, Winston Howard, 1918-
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

Tuballoy Oxides in the Reduction of TO₃

Description: Introduction: "This investigation was undertaken because of the importance of the reduction of TO3 to TO2 by hydrogen gas in the conversion of TO3 to TF4. We hoped to discover what factors affect the rate of reduction and the quantitativeness of the yield."
Date: 1945
Creator: Tanford, Charles; Tichenor, R. L. & Larson, C. E.
Partner: UNT Libraries Government Documents Department

A Study of the Carrier Distillation Excitation of Iron in U3O8

Description: Abstract: "A radioactive tracer, Fe^59, was used to determine the disposition of iron as a result of the excitation of a U3O8 matrix in a d - c arc. Two different spectrographic procedures, both using carrier distillation excitation techniques, were compared as to the percent of iron volatilized, the percent of iron diffused into the electrode and the percent of iron remaining in the residual charge."
Date: unknown
Creator: Atwell, M. G. & Pepper, C. E.
Partner: UNT Libraries Government Documents Department

Tuballoy Peroxide

Description: The following report is the fourth in a series of reports on the studies around tuballoy peroxide. This report discusses the effect of the fifteen common metal ions on precipitation of tuballoy peroxide.
Date: 1945
Creator: Grieger, P. F.; Christopherson, E. W.; Mogg, D. W. & Gates, J. W.
Partner: UNT Libraries Government Documents Department

Effect of Iron on the Low Temperature Precipitation of Tubanyl Peroxide in Beta

Description: Abstract: "In the low temperature precipitation of tubanyl peroxide from Beta gunks, process modifications are described which minimize the effect of iron on decompisition of H2O2. These include the addition of excess H2O2 to the slurry only after attaining a reduced temperature, the use of malonic and acetic acid complexing when the H2O2 is added at room temperature, and the use of wetting agents when the entire process is carried out at 2 C."
Date: 1945
Creator: Brown, K. B.; Swanson, D. H.; Wagner, E. L. & Miller, A. J.
Partner: UNT Libraries Government Documents Department

TO₃ Reduction and Chlorination in the Experimental Glass Fluidizer

Description: Abstract: "Temperatures above 400 C are required before reduction will take place with AH3. Above 500 C, a pyrophoric product was obtained. The chlorination temperature should be about 350 C initially and above 450 C at the end of the reaction to achieve 99% chlorination."
Date: December 20, 1945
Creator: Lowrie, Robert Sydney & Hubbard, J. V.
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

The Chlorination of TO₃

Description: Abstract: The applicability of specific mixtures and organic chlorocarbons in general toward the chlorination of TO₃ has been tested by means of reactions is sealed glass tubes. The results show that thionyl chloride mixed with tetrachloroethylene or a bromothane of the tyoe CHBrC12 will produce TCI4 directly. This same result is produced by CBr2C12 alone.
Date: December 28, 1945
Creator: Gavlin, Gilbert; Hubbard, J. V. & Clewett, G. H.
Partner: UNT Libraries Government Documents Department

Measured Effective Thermal Conductivity of Uranium Oxide Powder in Various Gases and Gas Mixtures

Description: Memorandum presenting an investigation of the effective thermal conductivities of powders, which included uranium oxide UO(sub 2) powder with a density of 59.5 percent of the density of the solid uranium oxide at a range of temperatures. Helium, argon, and nitrogen gases and mixtures of helium-argon and xenon-krypton gases were introduced into the powder void, and the experimental effective thermal conductivities of the gas-powder mixtures were determined.
Date: March 3, 1955
Creator: Boegli, J. S. & Deissler, R. G.
Partner: UNT Libraries Government Documents Department

Refabrication and Encapsulation of Highly Irradiated Uranium Dioxide

Description: Abstract: One hundred gram quantities of uranium dioxide, irradiated to burnup as great as 21,000 Mwd/MTU and previously reprocessed by AIROX (Atomics International Reduction Oxidation), were refabricated into high density pellets and encapsulated for re-irradiation.
Date: December 1, 1964
Creator: Guon, J.; Bodine, J. E. & Sullivan, R. J.
Partner: UNT Libraries Government Documents Department

Volatilization of Molybdenum During the Preparation of TF₄ and T₃O₈ from TF₄

Description: This report follows the study that was undertaken in an attempt to show how one of the elements held over in appreciable amounts in TF4 after conversion with TO3, molybdenum, acts during this transformation. Also of interest is the behavior of molybdenum during the reaction TF4 --> T3O2.
Date: 1945
Creator: Wick, L. B.; Weaver, B. S. & Gates, J. W.
Partner: UNT Libraries Government Documents Department

Tuballoy Peroxide

Description: The following report determines the solubility of tuballoy peroxide over a fairly wide range of sulphate, hydrogen ion and hydrogen peroxide concentrations.
Date: 1945
Creator: Grieger, P. F.; Christopherson, E. W.; Oringer, Roy & Gates, J. W.
Partner: UNT Libraries Government Documents Department