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TRANSIENT RADIATION EFFECTS IN CAPACITORS AND DIELECTRIC MATERIALS

Description: Measurements of dielectric leakage, capacitance, electric strength, andd charge scattering phenomena were performed at the Kukla and Godiva III critical assemblies for tantalum and aluminum electrolytic, wax- and oilimpregnated paper, mylar, mica, and ceramic capacitors, and for mylar and Vitamin B-impregnated paper. Leakage data indicate that gamma induced conductivity in capacitor dielectric varies directly with gamma DELTA , where gamma is the gamma radiation rate and DELTA is 0.9 for mylar,… more
Date: August 15, 1961
Creator: Wicklein, H. W. & Dickhaut, R. H.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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AN INFORMATION STORAGE AND RETRIEVAL SYSTEM FOR IRRADIATION EFFECTS IN METALS

Description: An information storage and retrieval system (PIC) was developed, utilizing the IBM 7090 computer, for handling data pertaining to the effects of neutron irradiation on metals. The input includes a reference identification, an appropriate abstract or extract summarizing the article, code identification parameters analogous to those used by the ASM-SLA Literature Classification System, and special codes identifying relevant irradiation and testing parameters. The output contains the same data plu… more
Date: August 15, 1963
Creator: Bush, S. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Phase Transformations in Alumina. Technical Report, May to December 1961

Description: e transformation studies showed that synthetic aluminas produced in the laboratory were not transformed to alpha alumina at 400 to 700' deg n the presence of nitric acid and water vapor. Amorphous aluminn produced in the pilot plant was transformed to alpha alumina. This indicated that the amorphous alumina produced in the pilot plant is structurally predisposed to form alpha alumina. Most additives did not appear to have any special effects. Lithium formed zeta alumina, LiAl/sub 5/O/sub 8/. Ph… more
Date: December 1, 1961
Creator: Eding, H J; Huggins, M L & Brown, A G
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FEASIBILITY STUDY ON THE DIFFUSION BONDING OF URANIUM

Description: Studies were made on the feasibility of effecting diffusion bonding in U, using pure Au as a catalyst, and by solid state diffusion without the use of a catalyst. It was found that the Au appeared to have promising characteristics for catalyzing the diffusion bonding reaction in joining uranium to itself. Phase diagrams are given U-Au, U--Cr, U--Co, U--Cu, U--Fe, U--Mn, and U--Ni alloys. (P.C.H.)
Date: October 15, 1962
Creator: Bertossa, R.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ENERGY STORAGE MECHANISMS IN LIQUID HYDROGEN

Description: Section II, Task 1, Item 5 of FZM-2386. Energy-storing molecular products of radiation in liquid H/sub 2/ are examined from the point of view that the expulsion of potertial energy in the form of such products may lead to lower design weights for nuclear rockets. It is found that a significant fraction of the energy deposited by radiation in liquid H/sub 2/ is stored temporarily through the dissociation and excitation of H/sub 2/ molecules. Experimental and theoretical results are consistent wi… more
Date: October 31, 1962
Creator: Carter, H.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Ionizing Radiation on the Optical and Electrical Properties of the Alkali Halides

Description: Various mechanisms for the formation of point defects in ionic crystals are considered. Their probable importance as a function of the energy of the ionizing radiation and the temperature at which the irradiation takes place is discussed. Complex centers formed from aggregates of simple point defects are reviewed and their occurrence considered in terms of the expected spatial distribution of the point defects. The effect of high energy x rays and protons on the ionic conductivity is discussed … more
Date: January 1, 1962
Creator: Royce, B S.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Effect of Radiation on the Mechanical Properties of Polymers. A Bibliography of the Unclassified Literature, 1955-September 1962

Description: A bibliography of approximates 440 references is presented which is arranged into sections dealing with polyacrylates, polyamides, polybutadienes and copolymers, polycarbonates, cellulosics, epoxy resins, polyesters, polyethers, polyethylenes, natural rubber, neoprene, phenolics, polypropylene, rubbers, silicones, polystyrenes, urethanes, polyvinylidenes, polyvinyls, and miscellaneous systems. Reviews, data compilations, books, and references dealing with dynamic mechanical properties are also … more
Date: July 1, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A NEW METHOD TO DETERMINE VARIOUS FREE ENERGY STATES OF SILVER OXIDE ON SILVER METAL

Description: The solubility of silver oxide on silver metal is not the same as that of the bulk oxide. The differences in solubility were investigated by shaking silver powder in deaerated solutions of various concentrations of ammonia and in buffers of ammonia and ammonium nitrate at a constant temperature of 25 deg C. These solutions were shaken in an atmosphere of N/sub 2/ in a stoppered bottle and in the absence of light. The concentration of silver ion in these solutions was measured potentiometrically… more
Date: October 31, 1963
Creator: van'; t Riet, B & Watt, W J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A METALLOGRAPHIC STUDY OF GAS BEHAVIOR IN URANIUM IRRADIATED WITH ALPHA PARTICLES

Description: The behavior of helium in uranium and in several uranium alloys was studied metallographically after room temperature irradiation with alpha particles in a cyclotron, followed by various heat treatments. The observed gas bubbles were classified in two classes, differing in size, concentration, and mechanism of formation. These bubbles appear to resemble those resulting from fission product gases in neutron-irradiated uranium; the findings of this study seem to be applicable to the understanding… more
Date: September 28, 1962
Creator: Green, H.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Improved Corrosion-Resistant Stainless Steel. Final Report

Description: Materials with improved corrosion resistance are needed for use in processing equipment handling HNO/sub 3/ -- HF and other corrosive solutions. Investigations were conducted to evaluate special modifications of Types 309 and 310 and higher Cr and Ni alloys. The 0.02% carbon Type 310 Cb, 0.02% carbon Type 310, and all of the higher Cr-Ni alloys were found to have a much improved general corrosion resistance over Type 309. The 0.02% carbon Type 310 Cb is recommended since it is not attacked in w… more
Date: October 23, 1962
Creator: Renshaw, W.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron Radiographic Inspection of Heavy Metals and Hydrogenous Materials

Description: The possibility of using thermal-neutron radiography for inspecting heavy metals and hydrogenous materials was examined. The data include exposure curves, contrast sensitivities, and an assessment of the influence of higher energy neutrons and interfering gamma radiation on image quality. It is shown that, in the case of homogeneous materials, neutron radiography presents definite advantages for the inspection of heavier metals such as uranium, bismuth, and lead, and that the images obtained in… more
Date: March 11, 1963
Creator: Berger, H. & Kraska, I. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TRANSFORMATIONS IN URANIUM-BASE ALLOYS. Summary Report for December 14, 1955-March 31, 1957

Description: Transformation kinetics of binary U -Nb and ternary U-Nb-base alloys were investigated. Additions included zirconium, chromium, titanium, silicon, nickel, nnthenium, and vanadium. Encapsulated samples were given a homogenizstion anneal at 1000 or 1100/sup o/C, water-quenched from 906/sup o/C to retain the phase, and reheated to temperatures between 360 and 600/sup o/C. The metastability of the phase was examined by metallographic, hardness, resistometric, dilatometric and x-ray-diffraction tech… more
Date: June 28, 1957
Creator: Parry, S. J. S.; Holtz, F. C. & Van Thyne, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanical Properties of Thin Films. Technical Report No. 29

Description: vention of the Society for Nondestructive Testing. The elastic and plastic properties are reviewed with special emphasis on metal films prepared by vacuum evaporation, although work with both non-metals and other preparation techniques is discussed when it is the only existing data or has particular importance. A definite lack of agreement exists among the various workers and as a result detailed explanations are not possible although general suggestions do exist. The structure of thick polycry… more
Date: November 1, 1963
Creator: Hoffman, R W
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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EFFECT OF FLUORIDE IONS ON THE AQUEOUS CORROSION OF ZIRCONIUM ALLOYS

Description: A review was made of the effects of fluoride ions on the corrosion behavior of zirconium alloys in high-temperature water. Corrosion was found to occur as the result of contamination of the water or the zirconium surface. A major source of fluorides is undue delay in rinsing the HF--HNO/sub 3/ pickling solution during surface preparation. The oxide on corrosion-resistant material has been found to contain up to 7600 ppm fluoride from this source. The threshold concentration of fluoride in the o… more
Date: January 1, 1963
Creator: Berry, W E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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