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QUARTERLY SUMMARY RESEARCH REPORT IN METALLURGY FOR OCTOBER, NOVEMBER, DECEMBER 1953

Description: Progress is reported on the following investigations: separation of Nb and Ta by solvent extraction; separation of Ti and Nb with TBP, and of Hf from Zr with methyl ethyl ketone; preparation of HfF/sub 4/, CeF/sub 3/, LaF/sub 3/, ThCl/ sub 4/, and V chlorides; preparation of Ce, La, V, Nb, anf Hf; phase studies of U- -Zr, U--Ag, U--Nb, V--Al, V--Ta, Th--Mg, Zr - Zn, and Ta alloys; corrosion of high-melting metals and alloys by liquid U-Cr and Mg--Th alloys; casting U into U- Zr alloy cans; coating and electroplating of U; reactions of U with Al-Si alloys at high temperatures; corrosion of U - Zr--Nb alloys in water; crystal structure of sodium tungsten bronze; physical properties of Dy; and phase studies of CaO- CaF/sub 2/ systems. (C.W.H.)
Date: May 25, 1954
Partner: UNT Libraries Government Documents Department
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RESEARCH AND DEVELOPMENT IN THE FIELD OF THORIUM CHEMISTRY AND METALLURGY. Monthly Progress Report for April 16 to May 15, 1955

Description: A continuous belt drier capable of handling 1000 lbs of oxycarbonate per day was completed, installed, and operated to produce a satisfactory product for chlorination. An experimental chlorinator was also completed. All necessary pants were completed for the fabrication of Horizons' Mark VI continuous electrolytic cell. Evaluations of oxycarbonate materials for chlorination wiih varying chlorinating agents were made, and many of the variables such as water content and CO/sub 2/ values were established. Extremely ductile rods were obtained from the direct extrusion of Th metal powder. Plans were completed for the Mark VI electrolytic cell. Work was continued toward the development of a semi-continuous operating electrolytic cell of 7500-a rated capacity. (D.E.B.)
Date: May 25, 1955
Creator: Wyatt, J.L.
Partner: UNT Libraries Government Documents Department
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Remote Maintenance Experimental Work on a Reactor System Pump

Description: An experimentally determined evaluation of standardremote-handling equipment applied to the problems associated with remote maintenance of a typical reactor system component is presented It is comcluded that commercially available equipment can be used and that a good techmician can rapidly learn the use of manipulators required in remote maintenance. The use of closed circuit television in maintenance is possible; however, further development of radiation- resistant equipment is required. (j.R.D.)
Date: July 25, 1958
Creator: McDonald, W.B.; McGlothlan, C.K. & Storto, E.
Partner: UNT Libraries Government Documents Department
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Solvent Extraction Recovery of Vanadium (and Uranium) From Acid Liquors With Di(2-Ethylhexyl) Phosphoric Acid

Description: Bench-scale studies were made on use of di(2ethylhexyl)-phosphoric acid in an organic diluent (Dapex process) for solvent extraction recovery of vanadium from acid leach liquors. Vanadium may be stripped from the solvent by either acidic or alkaline reagents, the former having been studied in considerably greater detail. A process for single-cycle recovery and separation of uranium and vanadium from sulfate leach liquors was shown to be attractive both from the standpoint of operation and chemical costs. Process schemes for recovery of vanadium from uranium-barren liquors are also described. On the basis of the encouraging laboratory results, pilot scale tests for specific applications are recommended. (auth)
Date: November 25, 1959
Creator: Crouse, D.J. & Brown, K.B.
Partner: UNT Libraries Government Documents Department
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HRT PROCESS FLOWSHEETS. Revision 1

Description: No Description Available.
Date: August 25, 1955
Creator: Zapp, F. C.
Partner: UNT Libraries Government Documents Department
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AN ON-OFF SERVO FOR THE ARE

Description: No Description Available.
Date: November 25, 1952
Creator: Hanauer, S H; Mann, E R & Stone, J J
Partner: UNT Libraries Government Documents Department
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ANALYSIS OF NEUTRON PULSES IN A GODIVA-TYPE REACTOR

Description: Some calculations have been made to estimate the characteristics of a neutron-burst type fast reactor similar to Godiva but made up of relatively small component parts--the so-called "layered assembly." One spherical and three cylindrical assemblies have been considered. Critical masses, assuming 5% voids, range from 58 to 65 kg of 93.4% enriched U/sup 235/. For a reactivity addition of 0.33 dollars above prompt criticals bursts between 2 x 10/sup 17/ and 6.7 x 10/ sup 17/ fissions were computed with accompanying temperature rises varying from 514 to 1600 deg C. The burst width at half-maximum was about 12 microseconds. To obtain an idea of the possibilities of stress reduction which might be achieved by layerings an assembly made of small rings was considered. While the critical masses obtained here are believed to be fairly accurates the predictions concerning mechanical energy generated, total fissions, and burst width may be subject to sizeable error due to the many simplitications required to allow hand computations. Neverthelesss considerable improvement in safety and burst-size is indicated by the use of a "layered assembly" instead of an assembly composed of relatively thick parts. (auth)
Date: February 25, 1959
Creator: Nestor, C.W. & Tobias, M.
Partner: UNT Libraries Government Documents Department
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STABILITY OF HOMOGENEOUS REACTORS

Description: No Description Available.
Date: May 25, 1955
Creator: Kasten, P. R.
Partner: UNT Libraries Government Documents Department
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THE ELECTRICAL PROPERTIES OF URANIUM OXIDES

Description: No Description Available.
Date: September 25, 1956
Creator: Willardson, R.K.; Moody, J.W. & Goering, H.L.
Partner: UNT Libraries Government Documents Department
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THE TRANSPORT OF ATOMIC DEBRIS FROM OPERATION UPSHOT-KNOTHOLE

Description: In connection with the Upshot-Knothole test series in network consisting of 95 U.S. and 26 forcign stations was set up. Of the 11 devices detonated, ranging in yield from 0.2 to 60 kt, highier activity was found for lower bursts than from air drops. Information relating to the optimum spacing of stations in a gummed film network and the possibility of missing local areas of intense fallout are discussed. (W.D.M.)
Date: June 25, 1954
Creator: List, R.J.
Partner: UNT Libraries Government Documents Department
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Army Gas-Cooled Reactor Systems Program. Monthly Progress Report for April 1959

Description: The Army Gas Cooled Reactor System Program includes water moderated heterogeneous reactor (Gas Cooled Reactor Experiment I), a graphite moderated homogeneous reactor (Gas Cooled Reactor Experiment II), a mobile gas cooled reactor (ML-1), and the co ordination of thc Gas Turbine Test Facility. The progress of each project, the associated tests and data evaluation, the applicabie design criteria, and the fabrication of reactor components are briefly summarized. (For preceding period see IDO-28538.) (W.D.M.)
Date: May 25, 1959
Partner: UNT Libraries Government Documents Department
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STRESS ANALYSIS OF FLAT CIRCULAR PLATES

Description: The principal relations for the stress analysis of flat circular plates according to the classical theory are presented in a convenient form. Almost any flat circular plate of uniform thickness, with or without central holes, loaded with any combination of axisymmetrical loads may be analyzed by the procedures. (A.C.)
Date: November 25, 1957
Creator: Stanek, F.J.
Partner: UNT Libraries Government Documents Department
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Radioactive Debris From Operations Upshot and Knothole

Description: Activities of the National Monitoring System are summarized for the period March 1 to June 15, 1953, during which eleven nuclear devices were fired at the Nevada Proving Grounds durirg Operation Upshot-Knothole. The program employed a world-wide network of 125 sampling locations. Each station collected samples of atmospheric dusts/or radiometric analysis. A comparison is made of air concentrations and fall-out activities. Data are tabulated. (C.H.)
Date: June 25, 1954
Partner: UNT Libraries Government Documents Department
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