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Aging of Al-Li Alloys - Part I

Description: Technical report outlining experiments on aluminum-lithium alloys. From Abstract: "Aluminum-lithium alloys are subject to precipitation from solid solution, and may be age hardened by the same techniques used for more common aluminum alloys. Spherical particles of precipitate were observed with the electron microscope in 1.5% and 2.8% Al-Li alloys after aging for times comparable to those required to produce maximum hardness. Rod-shaped particles that were oriented parallel to either the (110) … more
Date: January 1959
Creator: Angerman, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Canning Graphite for Gas-Cooled Reactors

Description: A preliminary investigation was made of techniques and materials for canning graphite to protect it for use at high temperatures in a nitrogen--oxygen atmosphere. Fabrication techniques for cladding bare and copper--plated graphite cores either in Type 316 stainless steel or Inconel X were developed. Specimens of the various combinations of core and cladding materials were subjected to simulatedservice conditions and evaluated. In all cases the Type 316 stainless steel-clad specimens failed by … more
Date: January 1, 1959
Creator: Paprocki, S. J.; Carlson, R. J. & Bonnell, P. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Circular Polarization of Gamma Radiation Following Allowed Beta Transitions

Description: The degree of circular polarization of gamma rays following allowed beta transitions was investigated as a function of the angle THETA /sub beta gamma / between beta-particle momentum and gamma direction and as a function of the energy of the beta particle. The anisotropy of the beta-gamma circular polarization correlation observed for pure Gamow-Teller transitions ( DELTA 1 = 1) is used to determine the validity of C/sub A/' = C/sub A/. The experimental results for Co/sup 60/ and Na/sup 22/ ar… more
Date: January 1959
Creator: Steffen, R. M. (Rolf M.), 1922-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CIVILIAN POWER REACTOR PROGRAM. PART III. CORE-PARAMETER STUDIES FOR SELECTED REACTOR TYPES

Description: A report is presented to provide a tool for evaluating the relative economic incentives for changing reactor core parameters. The cost relations are shown in terms of differential cost in lieu of total cost. A total cost for each reactor described is included so that power costs for a specified set of parameters can be obtained. A description is also included concerning 5 reactor types considered along with a discussion of the effects on power costs of varying the significant core parameters. A… more
Date: January 1, 1959
Creator: Atomic Energy Commission, Washington, D.C. & Jackson and Moreland, Inc., Boston
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Color Preferences of Children in a Dallas Public School

Description: The problem of this study examines two questions which were posed. First, would color preferences of children in the N.W. Harllee School of the Dallas Independent School District be the same as those found in other studies of color preferences of elementary school children? Second, would there be differences in choices made by low academic aptitude groups and high academic aptitude groups? In an attempt to answer these questions, a series of tests was devised and administered to children gra… more
Date: January 1959
Creator: Foster, Lonnie George
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Core Characteristics of Four Army Package Power Reactors

Description: A brief discussion of the core charteristics of four uranium fuel, pressurized-water type: Army Package Power Reactors, the SM-1, SM-1A, PM-2A, and SW-2, is presented. The characteristics discussed are cell geometry, fuel plates, core geometry, flux distributions, core loading, core burnout, and control reds. Tables and illustrations are included. (auth)
Date: January 1, 1959
Creator: Gallagher, J. G.; Leibson, M. J. & Byrne, B. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DARED-1--AN IBM-704 PROGRAM FOR REDUCING DATA FROM FOIL IRRADIATION AND FITTING BY LEAST SQUARES TO BESSEL J$sub 0$ OR COSINE FUNCTION

Description: A description is given of a code for the IBM-704 computer which reduces and fits by least squares the measurements of radioactivity of a sequence of foils. Corrections for background, counter deadtime, foil weight, and radioactive decay are applied, and readings outside a specified range are rejected. Errors due to statistical fluctuations are computed and off-center ordinates are calculated. Reduced data are then fitted by least squares to the best value of the arguments of Bessel J/sub o/ or … more
Date: January 1, 1959
Creator: Jedruch, J. & Saalbach, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Design and Uses of High Flux Research and Test Reactors

Description: The need for thermal and fast neutron fluxes in the range of 1 to 5 x l0/ sup 15/ neutrons/cm/sup 2/(sec) for the production of heavy elements such as Cf/ sup 252/ and other special isotopes and for improving the quality of beam experiments, reactor materials testing work, and solid state research has led to plans for the construction of three ultra high flux research reactors. The designs of these and other high flux research reactors are based on the general technology of enriched tank-type r… more
Date: January 1, 1959
Creator: Lane, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of Hafnium and Rare Earths in Aluminum Alloys

Description: Procedures are described for both a titrimetric and a gravimetric determination of hafnium in aluminum -hafnium alloys. The gravimetric procedure is used if the hafnium is to be recovered; otherwise, the titrimetric procedure is preferred. The sample is dissolved in aqua regia. Any undissolved hafnium is taken into solution via pyrosulfate fusion. The hafnium is separated from the aluminum and contaminants in the aluminum by precipitation as the mandelate. In the gravimetric procedure the hafni… more
Date: January 1, 1959
Creator: Sikes, J. H.; Wade, M. A. & Yamamura, S. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dispersion in Tidal Estuaries

Description: A number of experiments were conducted at Northwestern University with methylene blue tracer to study the influence on the diffusion process of the periodic variations of flow which are characteristic of tidal estuaries. The oscillatory movement of pollutant was also closely studied with an instantaneous injection of radioactive tritium water in the model of the Savannah Harbor. (W.D.M.)
Date: January 1, 1959
Creator: Huiswaard, P. J.; Banks, R. B. & Bell, C G. Jr,
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dispersion of Fluid Flow in Porous Media

Description: This technical report presents the results of an investigation concerned with the phenomenon of dispersion in porous media flow. In the work, major emphasis has been placed on the problem of one-dimensional, longitudinal flow in porous media, from both theoretical and experimental viewpoints. To date, only limited work has been done on the corresponding radial flow problem. The governing differential equation for the dispersion of a fluid transporting a solute as it flows through porous media c… more
Date: January 1, 1959
Creator: Ogata, Akio, 1927- & Banks, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE ETCHING OF PLUTONIUM AND ITS ALLOYS BY CATHODIC BOMBARDMENT

Description: The development of microstructural detail by cathodic bombardment has been used successfully for many metals and alloys which are difficult to etch by conventional methods. An application of this technique to plutonitun and its alloys is presented. A method for preventing the specimen from overheating is included in the description of the equipment. Photomicrographs of a few clean, well defined microstructures obtained by cathodic bombardment of plutonium and some of its alloys are also are inc… more
Date: January 1, 1959
Creator: Imlah, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Pressure Distributions and Force Coefficients on Block Forms for Varying Mach Number, Reynolds Number, and Yaw Angle

Description: Abstact: "Wind tunnel tests were performed to determine pressure distributions and normal force coefficients on three block forms on mounting planes. The dimension ratios of the blocks were 1:1:1, 1:1:2, and 1:1:4. Results are given for variation in Mach number from 0.066 to 0.8, in Reynolds number from 0.28 x 10(exp 6) to 4 x 10(exp 6), and in yaw angle from 0 to 90 degrees. Results show a Reynolds number independence over the range examined. Windward face force coefficients for a given block … more
Date: January 1959
Creator: Hankins, Dorris M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

F0020-AN IBM-704 THERMAL TRANSIENT ANALYSIS CODE

Description: An IBM-704 thermal transient analysis code, designated F0020 was developed to reduce transient test data for a single vertical, rectangular coolant channel. Modes of heat transfer to water at 2000 psia covered by this code include forced convection (turbulent flow), nucleate boiling, departure from nucleate boiling, partial film boiling, and film boiling. The code will accommodate a plate mesh, and associated heat generation weighting factors, of a maximum of 50 axial and 10 radial nodes. (auth) more
Date: January 1, 1959
Creator: Callaghan, J.B. & Williams, J.S. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FIELD STUDY OF THE AgPO$sub 3$ GLASS PERSONNEL DOSIMETER (U.S. NAVY DT-60)

Description: >The U. S. Navy DT-60 dosimeter was evaluated under field type conditions as to its reproducibility and accuracy of gamma x-ray, thermal and fast neutron and mixed radiation responses. Gamma and x-ray responses from 25 to 600 rads at energies in oxcess of 200 kev were found to be accurate within 20% in 92% of 160 dosimeters examined. Because the DT-60 was found to have no detectable fast neutron response, effort was directed toward exaggerating the thermal neutron response to approximate the to… more
Date: January 1, 1959
Creator: Ballinger, E.R. & Harris, P.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FINAL REPORT ON MISCIBILITY GAPS IN Nb-U AND Nb-U-Zr SYSTEMS

Description: The miscibility gap in the U-Nb system has been established using metallographic and x-ray techniques. The monotectoid temperature is placed at 640 deg plus or minus 2 deg C and the composition limits at that temperature are 65 to 70 at.% Nb and 17.5 plus or minus 1 at.% Hb. The 700, 650, and 600 deg C isothermal sections of the U-Nb- Zr system have also been investigated. Each of the miscibility gaps present in the limiting binary sections was found to be closed by additions of the third eleme… more
Date: January 1, 1959
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FUEL CYCLE COSTS IN A GRAPHITE MODERATED SLIGHTLY ENRICHED FUSED SALT REACTOR

Description: A fuel cycle economic study has been made for a 315Mwe graphite- moderated slightly enriched fused-salt reactor. Fuel cycle costs of less than 1.5 mills may be possible for such reactors operating on a ten-year cycle even when the fuel is discarded at the end of the cycle. Recovery of the uranium and plutonium at the end of the cycle reduces the fuel cycle costs to approximates 1 mill/kwh. Changes in the waste storage cost, reprocessing cost or salt inventory have a relatively minor effect on f… more
Date: January 1, 1959
Creator: Guthrie, C.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Furnace Brazing of Zircaloy

Description: The furnace brazing of Zircaloy or Zircaloy-clad nuclear reactor components was investigated. The strength and corrosion resistance of brazements were determined and techniques were developed for preplacing the brazing alloy to prevent contamination and to maintain dimensional stability during brazing. Brazements of high strength and adequate dimensional accuracy were produced, but the brazing cycles impaired the corrosion resistance of Zircaloy in high-temperature steam and water. (auth)
Date: January 1, 1959
Creator: Slaughter, E. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geology and Pegmatites of the Fourmile Quadrangle, Black Hills, South Dakota

Description: Report discussing the geology and pegmatites of the Fourmile Quadrangle, located on the southwest side of the Black Hills uplift in Custer County, South Dakota. "This report is an abstract of a paper with the same title that is planned for publication as a Geological Survey professional paper."
Date: January 1959
Creator: Redden, Jack A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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