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Preparation of Ductile Zirconium: Summary of Thermodynamic Data

Description: Abstract: A summary of thermodynamic calculations for zirconium halides is given. Data indicates that the iodide is the most promising of the halides for arc dissociation and that good recoveries of zirconium should be obtainable provided dissociation is carried out at reduced pressure.
Date: September 16, 1949
Creator: Findlay, G. R.
Partner: UNT Libraries Government Documents Department

Investigations of Zirconium with Especial Reference to the Metal and Oxide: Historical Review and Bibliography

Description: From introduction: "As it necessary to begin with a historical review of the literature, such a review is given as Part I of this report, and a bibliography is included as Part IV. References to the numbered items in this bibliography are made throughout the text, the usual footnote reference being omitted. Analyses of the products and conclusions as their purity are given under the descriptions of methods of preparation. A table showing the properties amorphous metal, and another showing the properties of the coherent metal, will be found under appropriate headings in Part II."
Date: 1921
Creator: Marden, J. W. & Rich, M. N.
Partner: UNT Libraries Government Documents Department

Zirconium Purification Pilot Plant

Description: This report discusses the process of zirconium purification, providing an alternate method for converting ZrCl4 solution to the oxide in order to free it from small amounts of hafnium impurity that are naturally present.
Date: September 12, 1950
Creator: Lea, D. C.; Aykanian, A. A.; Abbanat, R. F. & Bowman, W. H.
Partner: UNT Libraries Government Documents Department

The Uranium-Zirconium (Binary System) : Metallurgy Division Final Report

Description: This report follows the investigation of the uranium-zirconium system reported that was limited to the alloys which could be prepared by melting in beryllia with induction heating. A diagram is presented for the section between 0 and 43 atomic percent zirconium.
Date: 1952
Creator: Buzzard, Robert Walton; Liss, Robert B. & Fickle, D. P.
Partner: UNT Libraries Government Documents Department

Zirconium Research and Development : Progress Report

Description: From introduction: "This is the ninth monthly report, BMI-514, under Contract No. AT(30-1)-771 on "Zirconium Research and Development". The report covers the work period from September 15, 1950, to October 15, 1950. Work is continuing on the preparation of large-diameter zirconium crystal bars in the 16-inch-diameter de Boer unit. Crystal bars up to 1-5/16 inches in diameter and 8 feet long have been prepared in this unit."
Date: October 15, 1950
Creator: Bulkowski, H. H.; Sebenick, J. J.; Campbell, Ivor E. & Gonser, B. W.
Partner: UNT Libraries Government Documents Department

Recovery of Zirconium Tetrachloride Powder

Description: Report discussing methods for recovering hafnium-free zirconium from irradiated fuel elements. Two methods are discussed: the fluoride method and the Zircex method. Experimental procedures to evaluate these methods and their results are presented.
Date: April 6, 1956
Creator: Lee, L. A. & Welt, M. A.
Partner: UNT Libraries Government Documents Department

Observations on the Behavior of Hydrogen in Zirconium

Description: Abstract: "Some embrittling effects noted in Zr have been explained by the presence of hydrogen. This phenomenon was initially correlated with the existence of a second phase in the microstructure. The amount of this phase is reduced by vacuum annealing and shows a direct correlation with the hydrogen content of the specimen. X-ray and electron-diffraction evidence identifies the phase as ZrH. Observations are given on the solubilities, diffusion rates and equilibrium pressures of hydrogen in zirconium, and the application of these data to the removal of hydrogen."
Date: February 3, 1953
Creator: Schwartz, C. M. & Mallett, Manley William
Partner: UNT Libraries Government Documents Department

Zirconium Metal Fines Recovery: Interim Technical Report for May 15, 1950 to December 15, 1950

Description: This report covers the laboratory and pilot plant investigation of the reclamation of the low hafnium zirconium fines resulting from the manufacture of zirconium sponge and zirconium crystal bar. The process investigated involved recovery of the zirconium as zirconium tetrachloride, by drying the fines in an atmosphere of nitrogen and subsequent chlorination of the fines with anhydrous hydrogen chloride at temperatures above the sublimation point of the product.
Date: January 24, 1951
Creator: Ogburn, S. C., Jr. & Reader, L. J.
Partner: UNT Libraries Government Documents Department

Caustic Treatment of Zircon in the Preparation of Pure Zirconium Compounds

Description: From abstract: This investigation was conducted in order to develop a process whereby the most abundant zirconium ore, namely zircon, could economically be put into solution and purified adequately for use in hafnium separation processes employing liquid-liquid extraction. Secondary aims concerned the preparation of pure zirconyl chloride, zirconyl nitrate, zirconyl sulfate, and zirconium oxide from the zircon ore.
Date: June 23, 1953
Creator: Spink, Donald R. & Wilhelm, Harley A.
Partner: UNT Libraries Government Documents Department

The Development of a Melting Method for Conversion of Zirconium Sponge to Corrosion Resistant Ingot

Description: This report covers an investigation meant to find the feasibility of producing corrosion resistant zirconium from sponge by special melting techniques. The zirconium metal has certain required specifications, such as: the metal must be free from bafnium, and it must be free from other impurities of undesirable neutron cross section.
Date: May 4, 1950
Creator: National Research Corporation (U.S.)
Partner: UNT Libraries Government Documents Department

The Determination of Zirconium

Description: Abstract: "The method of Hayes and Jones, which uses p-dimethylaminoasophenylarsonic acid to precipitate zirconium, was studied for the range of one to seven micrograms of zirconium. The most strongly interfering ions, namely phosphate, fluoride, sulfate and the tetravalent cations of uranium, thorium and plutonium were studied. Two procedures are suggested."
Date: 1951
Creator: Stehney, A. F. & Safranski, L. W.
Partner: UNT Libraries Government Documents Department