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The Gasometric Determination of Nitrite and Sulfamate
This report covers an investigation made to develop a gasometric determination that can determine 1.2 x 10-(-5) g. of nitrite with a precision (99% limits) of +/- 8%, and discusses how this procedure works.
Date:
March 6, 1950
Creator:
Carson, W. N.
System:
The UNT Digital Library
Delayed Failure Hydrogen Embrittlement of Zirconium: Quarterly Report Number 3, March - June 1962
The following report is the third Quarterly Report in a series whose investigative purpose is to determine the extent to which zirconium and zirconium alloys exhibit delayed failure as caused by a combination of absorbed hydrogen and applied stress.
Date:
June 6, 1962
Creator:
Weinstein, Daniel & Holtz, F. C.
System:
The UNT Digital Library
The Boron-Carbon System: Quarterly Report Number 3, November 1960 - January 1961
Abstract: A definitive investigation of the boron-carbon equilibrium system is being made by X-ray diffraction, metallographic, and thermal analytical techniques. On the basis of metallographic and X-ray diffraction studies it is concluded that boron carbide has a range of solubility from approximately 10 to 20 atomic per cent carbon at 1500 degrees to 2000 degrees Celsius. The melting point of the carbide-graphite eutectic has been established as 2325-2350 degrees Celsius. No reversible allotropy of the beta-rhombohedral structure has been observed. The solubility of carbon in boron is very small. The melting point of dilute carbon alloys is found to be essentially the same as that of pure boron (2040 degrees to 2050 degrees). No metallographic evidence of a three-phase reaction of dilute alloys is observed.
Date:
February 6, 1961
Creator:
Elliott, Rodney P.
System:
The UNT Digital Library
The Preparation of Large-diameter Zirconium Crystal Bar by the De Boer Process
This report discusses the production of large-diameter zirconium crystal bars in a 16 inch diameter, Hastelloy B, de Boer unit in order to increase production efficiency.
Date:
March 6, 1951
Creator:
Bulkowski, H. H.; Beale, L. C.; Sebenick, J. J.; Campbell, Ivor E. & Gonser, B. W.
System:
The UNT Digital Library
Niobium Phase Diagrams : Manuscript Report on Niobium-Carbon System
Abstract: "The niobium-carbon system has been determined by X-ray and metallographic examination of sintered and arc-cast alloys. Two carbides exist: hexagonal Nb2C with a limited range of homogeneity, and cubic NbC with a solubility range from 8.25 to 10.25 weight per cent carbon. Dilute alloys freeze by eutectic reaction at 2230 C. The solubility of carbon in niobium is 0.80 at the eutectic temperature, but this decreases rapidly with temperature. Metallographic evidence indicates a peritectic reaction between melt, Nb2C, and NbC; alloys richer in carbon than NbC freeze by eutectic reaction."
Date:
May 6, 1959
Creator:
Elliott, Rodney P.
System:
The UNT Digital Library
Improved Zirconium Alloys Quarterly Report: January - March 1962
The following report is one of a series of quarterly reports following the progress and development of improved zirconium alloys for service in superheated water and steam. This report covers the period between January 1 to March 31, 1962 and was conducted by the United States and the European Atomic Energy Community (EURATOM). The major effort in this period has been devoted to ascertaining and evaluating corrosion behavior of 75 ternary compositions.
Date:
April 6, 1962
Creator:
Weinstein, Daniel & Holtz, F. C.
System:
The UNT Digital Library
Calculation of end points in potentiometric analyses
From introduction: "It is the purpose of this report to give two further methods of determining end point of pontentiometric titration, neither of which require the plotting of a graph."
Date:
October 6, 1947
Creator:
Bennett, Carl A.
System:
The UNT Digital Library
Corrosion Tests on Carboloy in Redox Process Solutions
Introduction: Static, total immersion corrosion tests were carried out at room temperatures with Carboloy grades 44-A, 78, 907, X-3119-A and X-3119-B in Redox process solutions (ANL, June 1, 1949 Flowsheet) 1AX, 1AF, and 1AS.
Date:
April 6, 1949
Creator:
Koenig, W. W.
System:
The UNT Digital Library
Corrosion in 650 F Degassed Water of Uranium-Molybdenum Alloys Containing Impurity Additions
From introduction: "At the request of WAPD, a study has been made of the effect of minor compositional variables on the corrosion behavior of uranium-molybdenum alloys in 650 F degassed water."
Date:
October 6, 1955
Creator:
Cawthorne, Edward W.; Berry, Warren E., 1922-; Reynolds, James E.; Jaffee, Robert Isaac, 1917- & Peoples, Robert S.
System:
The UNT Digital Library
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.
System:
The UNT Digital Library
The Mechanical Properties of Beta-Quenched Uranium at Elevated Temperatures
The creep strength and tensile properties-were determined in vacuum for beta-quenched, derby uranium. The stresses to produce a secondary creep rate of- 0.0001 per cent per hr at 100, 250, 400, and 500 deg C were 48,000, sile strengths were 114,500, 35,100, 11,100, and 8,500 psi at temperatares of 28, 300, 500, and 700 deg C, respectively. The creep and tensile strengths decrease quite rapidly with increasing temperature in the temperatare range 250 to 400 deg C.
Date:
September 6, 1955
Creator:
Shober, Frederic R.; Marsh, Lyle L. & Manning, G. K.
System:
The UNT Digital Library
Acceleration of a Plasma by Time-Varying Magnetic Fields
Abstract: An application of the magnetic mirror principle to the acceleration of a plasma is described. It is shown that an axially symmetric magnetic field which increases with time but decreases with distance along the axis can impart a net translational energy to a plasma. This effect on a plasma is contrasted with that arising from an impressed electric field, which is not effective in producing acceleration.
Date:
December 6, 1954
Creator:
Post, Richard F.
System:
The UNT Digital Library
The Bevatron and its Place in Nuclear Physics
From page 2: "This article first describes the Bevatron [particle accelerator] and its operation, and then discusses a portion of the research program. The principles of the machine and its early history were given in "The Bevatron," by Lloyd Smith, Scientific American, February 1951."
Date:
April 6, 1956
Creator:
Lofgren, E. J.
System:
The UNT Digital Library
Radioactive Waste Processing and Disposal (1950-1957): Bibliography
From abstract: "This bibliography consists of reports compiled from the AEC Library Card Catalog. Only the Classified and Unclassified report literature is included. For the published literature the reader is referred to an unpublished paper by V. Carson (UCRL - Livermore Library)" titled "Radioactive Waste Disposal" (April 25, 1957). "All progress reports covering the work have been omitted in order to exclude a large amount of duplicate information which is usually found in more detail in topical reports."
Date:
May 6, 1957
Creator:
Frost, Frederick E.
System:
The UNT Digital Library
Transformation and Magnetic Phenomena Occuring in Boron Stainless Steel Vertical Safety Rods
Summary: "The low carbon 18-8 stainless steels containing approximately 1.7 per cent boron used for vertical safety rods at Hanford were found to be structurally stable in the temperature range 0-450 C. The addition of boron decreases the stability of this metastable austenitic alloy. Sufficient ferrite formation is induced by sub-zero temperature treatments to result in dimensional changes and a magnetic alloy. The difficulties encountered in machining this material are believed to be due primarily to segregation in the castings resulting in small areas of the hard intermetallic compound, FeB."
Date:
February 6, 1953
Creator:
Hueschen, R. E.
System:
The UNT Digital Library
Study of Electric Propulsion Systems for Space Travel: Interim Progress Report for July 1 to December 31, 1958
Report discussing the progress made on a study of electric propulsion for space travel during the period from July 1, 1958 to December 31, 1958 at the Lawrence Radiation Laboratory in Livermore, California.
Date:
February 6, 1959
Creator:
Fox, Robert H.
System:
The UNT Digital Library
Microwave Interferometer Measurements for the Determination of Plasma Density Profiles in Controlled Fusion Experiments
The following report demonstrates experimental verification of a method described in a previous paper--that involves measuring the dispersive microwave propagation coefficients simultaneously at several frequencies and comparing measured values with the values calculated for various distribution functions--and describes the procedure used to determine the distribution function in a sample laboratory plasma experiment.
Date:
November 6, 1958
Creator:
Wharton, Charles B. & Slager, Donald M.
System:
The UNT Digital Library
A Large Bakeable Vacuum Valve
This report describes the development and design of a large bakeable valve that is based on a unique seat arrangement and a novel motion seal.
Date:
August 6, 1959
Creator:
Batzer, Thomas H.
System:
The UNT Digital Library
Computed Values of X-Ray Lines and Limits for the Trans-Uranic Elements
Report detailing values of x-ray lives and limits for trans-uranic elements. Formulas and methods are detailed throughout the report.
Date:
September 6, 1944
Creator:
Monk, Ardis T. & Allison, Samuel King
System:
The UNT Digital Library
Recovery From Salvage Residue by Fluorination in Vertical Reactors
Report discussing trial runs of a method of recovery of uranium from salvage residue. The method involves hydrofluorination of the residue to remove large quantities of interfering silicates, followed by a fluorination treatment to remove uranium.
Date:
September 6, 1946
Creator:
Stevenson, K., Jr.; Blasewitz, A. G. & Clewett, G. H.
System:
The UNT Digital Library
Separation of Tuballoy From Tantalum by Chlorination Distillation Process
Abstract: Tuballoy can be effectively separated from tantalum filaments by chlorination of the filaments and subsequent distillation and condensation of tantalum chloride. Apparatus for chlorination of filaments and distillation separation in one unit is under consideration. Chemical methods of separation of tuballoy from distillation residues are being tested.
Date:
February 6, 1946
Creator:
Adams, R. H.; Rogers, J. A.; Wagner, E. L. & Miller, A. J.
System:
The UNT Digital Library
Radiation Effects on Boron-Containing Compounds
Report discussing studies on changes within irradiated elemental boron, boron carbide, and zirconium diboride. Materials, methods, and experimental data are included.
Date:
January 6, 1960
Creator:
Hamman, Donald J. & Schall, Paul
System:
The UNT Digital Library
Monthly Progress Report No. 131
The following report is a general monthly progress report for the University of California's radiation laboratory in Berkeley, covering the period of February 15 to March 15 of 1954.
Date:
April 6, 1954
Creator:
Lawrence Radiation Laboratory
System:
The UNT Digital Library
Fabrication of Dispersed Uranium Fuel Elements Using Powder-Metallurgy Techniques
Abstract: "Fabrication techniques for producing dispersion fuel elements with cores of 30 volume per cost of UC, U2Tl, U3Si, or U6Ni dispersed in Zircology 2 and 30 volume per cent of UC or UN dispersed in Type 18-8 stainless steel have been investigated. Roll-clad plate-type elements of all these compositions may be fabricated by powder-metallurgy methods in such a manner that good core-to-cladding bonds and cores with uniform dispersions of discrete uranium-composed particles are obtained. From the standpoint of fabricability, elements containing UC is Zircology 2, UC in stainless steel, and UN in stainless steel are the most promising. The UN in stainless steel has the best corrosion resistance in 680 F degassed water; however, UC in stainless steel has the best resistance to corrosion in 700 F NaK."
Date:
May 6, 1957
Creator:
Paprocki, Stan J.; Keller, Donald L. & Cunningham, G. W.
System:
The UNT Digital Library