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An Experimental Survey of the Heat-Treatment Response of some Zirconium-Uranium Alloys (open access)

An Experimental Survey of the Heat-Treatment Response of some Zirconium-Uranium Alloys

Abstract: "The heat-treatment behavior of zirconium alloys containing 7 to 70 w/o uranium is described. The effect of oxygen contamination on the structure and hardness of these alloys is outlined. It is shown that in the initial stages pf transformation of beta zirconium-uranium solid solution into the low-temperature phases a potent hardening reaction occurs in alloys containing 20 to 70 w/o uranium. In this reaction the hardness may rise from 200 DPH characteristic of retained beta to values in excess of 400 DPH. Practical heat treatments have been developed which produce relatively soft alloys. The microstructures and hardnesses produces by these treatments are shown."
Date: June 15, 1956
Creator: Saller, Henry A.; Rough, Frank A. & Chubb, Walston
Object Type: Report
System: The UNT Digital Library
Thermal Distortion of SAR Hafnium Control Rod (open access)

Thermal Distortion of SAR Hafnium Control Rod

Abstract: The thermal distortion of a Y-shaped hafnium control rod heated by arrays of individually controlled radiation heaters was studied. The large axial and radial temperature gradients specified for this control rod were easily obtained with the radiation-heating method. The distortion, as measured with dial indicators, amounted to a 2-mil movement of the free end of the rod in the direction of the coolest blade.
Date: June 27, 1956
Creator: Goldthwaite, William H.; Allen, C. Malcolm & Fawcett, Sherwood L.
Object Type: Report
System: The UNT Digital Library
Differential Thermal Analysis of Uranium Tetrafluoride-Uranium Dioxide Mixtures (open access)

Differential Thermal Analysis of Uranium Tetrafluoride-Uranium Dioxide Mixtures

Abstract: "Approximate melting points have been determined for five samples of uranium tetrafluoride representing incompletely converted uranium dioxide and covering the range from about 2 to 20 w/o UO2, using the method of differential thermal analysis. The results indicate the melting temperatures are in the range of 920 to 980 C. No significant correlation between melting point and UO2 content was observed, possibly because of calcite formation. Similar results were obtained on synthetic mistakes of UF4 containing from 10 to 40 w/o UO2."
Date: June 28, 1956
Creator: Ewing, Robert A. & Bearse, Arthur E.
Object Type: Report
System: The UNT Digital Library
An Improved Nuclear Density Gauge : Covering the Interval of June 1 to July 1, 1959 (open access)

An Improved Nuclear Density Gauge : Covering the Interval of June 1 to July 1, 1959

The following document is a note describing the building process of an improved nuclear density gauge in comparison to previous gauges, within the interval of June 1 to July 1, 1959.
Date: June 8, 1959
Creator: Burgwald, G. M. & Stone, C. A.
Object Type: Report
System: The UNT Digital Library
Determination of Organic Acids in Process Solutions (open access)

Determination of Organic Acids in Process Solutions

Abstract: "A method has been established for the estimation of volatile organic acids in aqueous process solutions containing UNH, nitric acid, ANN, sodium dichromate and small amounts of hexone. The practice is to distill a 400 ul or 500 ul sample in the presence of an excess of phosphoric acid and ferrous sulfate under a high vacuum; a special apparatus utilizing a receiver cooled with a dry ice-isopropanol mixture is employed. The distillate is taken up in isopropanol and then titrated potentiometrically with standard potassium hydroxide solution. Since nitric acid and organic acids are present, two end points are observed. The potassium hydroxide added between these end points is equivalent to the organic acids. In the titration, CO2 from the atmosphere or in the potassium hydroxide is a source of error. The former was avoided and correction was made for the latter."
Date: June 29, 1949
Creator: Brouns, R. J. & Pollock, C. W.
Object Type: Report
System: The UNT Digital Library
The Coulometric Titration of 8-Hydroxyquinoline (open access)

The Coulometric Titration of 8-Hydroxyquinoline

Abstract: "A new method of determining 8-hydroxyquinoline by titration with electrolytucally-generated bromine has been developed. Results show good precision in the range 0.4 mg. to 1.6 mg. total 8-hydroxyquinoline, with 99% confidence limits of less than +/- 2%. An electronically-regulated constant current source, required by the method, is described. A new indicator system with high sensitivity to free bromine is discussed."
Date: June 16, 1949
Creator: Carson, W. N.
Object Type: Report
System: The UNT Digital Library
Redox : Analytical Research Group Report [for] March and April 1949 (open access)

Redox : Analytical Research Group Report [for] March and April 1949

Report discussing the results of research conducted by the Hanford Works Analytical Research Group during the period from March 1949 to April 1949.
Date: June 21, 1949
Creator: Schmidt, H. R.
Object Type: Report
System: The UNT Digital Library
Clarification of Redox Dissolver Solution by Centrifugation with Scavenger (open access)

Clarification of Redox Dissolver Solution by Centrifugation with Scavenger

From statement of objectives: The purposes of the work described in this report are to provide data useful for designing and operating the dissolver solution clarification equipment to be installed in the Redox production plant.
Date: June 6, 1950
Creator: Allen, A. W.
Object Type: Report
System: The UNT Digital Library
Evaluation and Consolidation of Electrolytic Thorium (open access)

Evaluation and Consolidation of Electrolytic Thorium

Abstract: "Sound, fabricable ingots of thorium were produced by triple are melting of electrolytic thorium. Consumable electrodes were fabricated by tack welding of cold-pressed and vacuum-sintered bars of the granular thorium electrodeposited from a molten-salt bath. The hydrogen content of the electrodeposited material was reduced from 80 to 4 ppm by vacuum sintering at 1250 C at pressures below 1 x 10-(-3) mm of mercury. Both sodium and chlorine content were reduced during melting; sodium from 250 to 25 ppm and chlorine from 1000 to 30 ppm. Oxygen and HCl acid-insoluble contents increased during sintering and melting. Oxygen content increased from 0.35 to 0.50 w/o and HCl acid-insoluble content from 0.8 to 4.0 w/o. A starlike includion revealed by metallographic examination of the as-cast thorium was identified as ThO2."
Date: June 15, 1955
Creator: Saller, Henry A.; Dickerson, Ronald F. & Foster, Ellis L.
Object Type: Report
System: The UNT Digital Library
A Bond-Cell Method for Complex Molecules and Metals (open access)

A Bond-Cell Method for Complex Molecules and Metals

This technical report introduces "some approximations into the basic quantum mechanical theory" so that the theory of the covalent bond and the molecular orbital method "can be combined into one which will yield quantitative rather than qualitative binding energies and cohesive energies and also distinct energy levels and band structure." This approach will provide a common method "suitable to both solid state physicists and physical chemists, for calculating the energy levels in metals and complex molecules." This report also contains figures detailing the findings. (Quotations taken from introduction)
Date: June 19, 1962
Creator: Carlson, C. M.
Object Type: Report
System: The UNT Digital Library
Report on the Brookhaven Nuclear Reactor Prepared for Reactor Safeguard Committee of the Atomic Energy Commission (open access)

Report on the Brookhaven Nuclear Reactor Prepared for Reactor Safeguard Committee of the Atomic Energy Commission

This technical report provides a general description of the Brookhaven National Laboratory, describing the nuclear characteristics of the Brookhaven reactor and more detailed descriptions of the features and instrumentation of the reactor.
Date: June 22, 1948
Creator: Brookhaven National Laboratory
Object Type: Report
System: The UNT Digital Library
Proembryo Irradiation to Produce Blue-Fluorescent and Albino Seedlings (open access)

Proembryo Irradiation to Produce Blue-Fluorescent and Albino Seedlings

Technical report outlining an experiment to introduce radiation to maize plants after pollination to produce blue-florescent and albino seedlings.
Date: June 18, 1962
Creator: Steffensen, Dale M.
Object Type: Report
System: The UNT Digital Library
Procedures for the Study of Bile Physiology in the Rat (open access)

Procedures for the Study of Bile Physiology in the Rat

This report describes procedures to "secure acceptable samples of bile from unanesthetized, nondepleted rats and sequential quantitative analysis with negligible experimental failure"--from abstract.
Date: June 18, 1962
Creator: Papavasiliou, P. S.; Bertinchamps, A. J.; Miller, S. T.; Gulibon, J. & Cotzias, G. C.
Object Type: Report
System: The UNT Digital Library
The Thermal Decomposition of Irradiated [alpha] Lead Aside (open access)

The Thermal Decomposition of Irradiated [alpha] Lead Aside

This report studies the thermal decomposition of unirradiated and heavily reactor irradiated colloidal [alpha] - PbH6.
Date: June 18, 1962
Creator: Jach, Joseph
Object Type: Report
System: The UNT Digital Library
Thermodynamics of Solutions of Actinides and Fission Products in Bismuth (open access)

Thermodynamics of Solutions of Actinides and Fission Products in Bismuth

This report reviews the published work on the thermochemistry of the liquid alloys of bismuth with Th, Pa, U, and Pu and the high-yield fission products, and presents in a unified form the authors' own results in this field.
Date: June 18, 1962
Creator: Wiswall, Richard H., Jr. & Egan, James J.
Object Type: Report
System: The UNT Digital Library
Positron Scanner for Locating Brain Tumors (open access)

Positron Scanner for Locating Brain Tumors

This report describes a system that uses positron emitting isotopes for locating brain tumors.
Date: June 18, 1962
Creator: Rankowitz, S.; Robertson, J. S.; Higinbotham, William A. & Rosenblum, R. J.
Object Type: Report
System: The UNT Digital Library
Cross Sections of 14.5 Mev Neutron Reactions With Special Interest in Ca47 Formation (open access)

Cross Sections of 14.5 Mev Neutron Reactions With Special Interest in Ca47 Formation

This report measures the cross sections of isotopes for 14.5 MeV neutrons and compares the author's results with calculated and existing literature values.
Date: June 18, 1962
Creator: Hillman, Manny
Object Type: Report
System: The UNT Digital Library
Molecular Geometry and the Vapor Pressure of the Isotopic Ethylenes; Chemical and Structural Isomers (open access)

Molecular Geometry and the Vapor Pressure of the Isotopic Ethylenes; Chemical and Structural Isomers

This report details a study of the vapor pressures of deuteroethylenes and C13 ethylene.
Date: June 18, 1962
Creator: Bigeleisen, J., (Jacob), 1919-2010; Ribnikar, Slobodan V.; Stern, Marvin J. & VanHook, W. A., (William Alexander), 1936-
Object Type: Report
System: The UNT Digital Library
Isotope Effects on Intermolecular Interactions and Isotopic Vapor Pressure Differences (open access)

Isotope Effects on Intermolecular Interactions and Isotopic Vapor Pressure Differences

This report discusses some of the problems in the calculation of isotope effects on the vibrational frequencies of the condensed phase.
Date: June 18, 1962
Creator: Wolfsberg, Max
Object Type: Report
System: The UNT Digital Library
Radiation and Atomic Rearrangement in Alloys (open access)

Radiation and Atomic Rearrangement in Alloys

This report examines radiation damage in solids, looking particularly at calculations and experiments that can provide quantitative predictions of damage.
Date: June 19, 1962
Creator: Damask, A. C.
Object Type: Report
System: The UNT Digital Library
Extinction and Diffuse Neutron Intensity Measurements (open access)

Extinction and Diffuse Neutron Intensity Measurements

Technical report which reports a study of the effects of extinction upon diffuse x-ray measurements.
Date: June 19, 1962
Creator: Keating, D. T. & Walker, C. B.
Object Type: Report
System: The UNT Digital Library
Annealing of Radiation Induced Defects in Fused Silica (open access)

Annealing of Radiation Induced Defects in Fused Silica

Technical report describes how glasses and crystals subjected to ionizing radiation develop absorption bands and become colored. The coloring of defects can be used to determine how nuclear reactor induced defects anneal out or disappear as an irradiated sample is heated.
Date: June 19, 1962
Creator: Levy, Paul Warren
Object Type: Report
System: The UNT Digital Library
The Temperature Dependence of Birefringence in Irradiated Polyethylene (open access)

The Temperature Dependence of Birefringence in Irradiated Polyethylene

Technical report on a study where the birefringence of irradiated polyethylene was observed as a function of temperature. The data is consistent with a mechanism in which crosslinking limits the growth and annealing of crystallites. Crosslinks formed in material which was oriented at the time the crosslinks were formed, results in an oriented gel. This effect explains the birefringence and the persistence of nucleation sites at high temperatures.
Date: June 19, 1962
Creator: Keneally, B.; Gard, J. & Adler, G.
Object Type: Report
System: The UNT Digital Library
The Standard Molar Free Energy of Formation of MgCl2, CeCl3, ThCl4, and UCl3 Obtained by Solid State EMF Techniques (open access)

The Standard Molar Free Energy of Formation of MgCl2, CeCl3, ThCl4, and UCl3 Obtained by Solid State EMF Techniques

Technical report about a study in the use of galvanic cells using solid electrolytes to obtain thermodynamic data at high temperatures to study the free energy of formation of chlorides using Daniell cells where all components are solid. "The experimental techniques used are presented, including cell construction, preparation of anhydrous materials, and the handling of reactive metals and hydroscopic materials for galvanic cells." from the abstract. Results are presented for magnesium chloride, cerium chloride, uranium chloride, and thorium chloride, and are compared with other available data.
Date: June 19, 1962
Creator: Egan, J. J.; McCoy, W. & Bracker, J.
Object Type: Report
System: The UNT Digital Library