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High Pressure Pump Seal Development

Description: "Test results indicated that graphite is not suitable for seal face material. A program to evaluate various materials and seal face geometries was initiated. A seal run using nucerite-bearium combination was carried on for six hours."
Date: March 5, 1962
Creator: Zanoni, P. J.
Partner: UNT Libraries Government Documents Department
open access

Investigations of Radioactive Fuel-Bearing Glasses

Description: "A series of high urania-content glasses were fiberized and examined for high-temperature strength properties. One glass, RX360 containing 60% U/sub 3/O/ sub 8/ by weight, had better high-temperature tensile properties than any glass previously reported. It was observed that many of the glasses studied separated into immiscible phases and that the fiberizable glass phase had lower U/sub 3/O/ sub 8/ content than the base compositions. A physical analysis of crystal structures of the devitrificat… more
Date: June 30, 1962
Creator: Lockwood, P. A.
Partner: UNT Libraries Government Documents Department
open access

Economic Factors of MFP Thermoelectric Generators

Description: "Mixed Fission Products (MFP) for use as a heat source for thermoelectric generators will become increasingly available in the coming years. The Atomic Energy Commission sponsored program on solidification of nuclear wastes is now entering the hot-bench scale test phase. During this phase approximately 5000 thermal watts of two year old MFP could be produced monthly. Two different types of hot calcination pilot plants are planned for installation at the Hanford National Laboratories in the 1964… more
Date: June 1962
Creator: Barmat, N.
Partner: UNT Libraries Government Documents Department
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Development of Techniques for Power Production From Mixed Fission Products

Description: "Progress is reported on Phase II of a program for the development of a mixed fission product fueled thermoelectric generator. Materials studies are described in which bonded assemblies of bismuth telluride were life tested up to 3000 hours at 350 to 400 deg F hot junction temperature. Data were too inconsistent to define any satisfactory long-life bonding process. Further work is needed to eliminate the process variables. Insulation studies aimed at determining the thermal conductivity of vari… more
Date: May 21, 1962
Creator: Lemanski, E. J.
Partner: UNT Libraries Government Documents Department
open access

Cobalt (II) Halides as Electrolytes in Acentonitrile

Description: "The electrical conductance of CoCl2 and CoBr2 from 10−4 to 10−1 mol/l over the temperature range 0–35°C is reported. The effects of water as trace impurity, and the halide common ion effect on conductance are examined. The properties of these solutes are also examined using spectrophotometry and transport numbers. Crystalline “solvated” compounds, of empirical formulae [CoX2(CH3CN)3]x can be separated from the saturated solutions. The magnetic susceptibilities of the crystalline substrates are… more
Date: April 1962
Creator: Janz, George J.; Marcinkowsky, Arthur E. & Venkatasetty, H. V.
Partner: UNT Libraries Government Documents Department
open access

Survey of Non-Aqueous Conductance Data

Description: "A compilation made as part of a research program dealing with the thermodynamics and electrical conductance of inorganic electrolytes in polar organic solvents is presented. Conductance and association constant data are included dating from 1922 through June 1962, classified both by solute and solvent. Other features include a selection of the physical properties of the most commonly-used organic solvents, a guide to alkylammonium salts studied in four or more solvents, and a survey of conduct… more
Date: December 1962
Creator: Janz, George J.; Kelly, Frank J. & Venkatasetty, H. V.
Partner: UNT Libraries Government Documents Department
open access

Reference Electrodes

Description: "The problems discussed are those encountered in assigning unequivocal emf values to electrode systems. Three electrodes which meet the requirements for reference electrodes most adequately are considered in some detail: these are the hydrogen, silver-silver chloride, and mercury-mercurous chloride (calomel) electrodes. An assessment is presented for electrode systems for aqueous solutions, organic solvents, fused slats and biological systems."
Date: December 1962
Creator: Janz, George J. & Kelly, Frank J.
Partner: UNT Libraries Government Documents Department
open access

Development of Isotope Dilution Techniques for Assay of Food Additives

Description: "lsotope dilution techniques are described for the assay of chlorinated hydrocarbon pesticides and organic phosphorus pesticides in foods. Results are given for the determination of tetranitro-DDT-dianilide, dianilide of tetranitro- DDE, dieldrin, systox, and derivatives of these compounds. "
Date: October 31, 1962
Creator: Nuclear Science and Engineering Corporation
Partner: UNT Libraries Government Documents Department
open access

Experimental Determination of Contact Conductance for Some Stainless Steel Contacts

Description: "Contact conductances for three semi-smooth and rough stainless steel contacts involving six steels are determined. The procedure and equipment used are fully described, and the results are given. Graphs display thermal conductance and conductivity versus pressure and temperature."
Date: July 1962
Creator: Adamantiades, Achilles
Partner: UNT Libraries Government Documents Department
open access

A Theorectical Treatment of Atomic Configurations Found in Some Iron-Aluminum Solid Solutions

Description: "Theoretical calculations have been carried our for the two ordering phases which occur in the FeAl system. The statistical treatment involves first and second neighbor interaction parameters as well as a magnetic interaction between first neighbor iron atoms. The phase diagram and the amount and type of long range order for slowly cooled alloys are calculated. Further calculations include short range order for the disordered phase at three compositions and two temperatures. As expected, the… more
Date: July 12, 1962
Creator: Houska, C. R.
Partner: UNT Libraries Government Documents Department
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Atom Arrangements in Some Iron-Aluminum Solutions, Report No. 1

Description: "Short-range order coefficients were measured at 300 and 400°C for iron-aluminum alloys containing 14.8, 18.2, and 20.0 atomic per cent aluminum. These alloys exhibited a strong preference for unlike near neighbors. The short-range order was greater at the lower temperature and increased as the Fe 3Al composition was approached."
Date: July 12, 1962
Creator: Houska, C. R. & Averbach, B. L.
Partner: UNT Libraries Government Documents Department
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Diffusion of Iron, Cobalt, and Nickel in Gold, Report No. 5

Description: "The diffusivities of Fe, Co, and Al in otherwise pure Au were determined by a residual activity technique. It was found that the frequency factors and activation energies of the transition elements into Au are normal relative to the values for Au self-diffusion, and suggest that lattice diffusion is operative, in contrast to the corresponding situation for the diffusion of these elements in Al. This difference in behavior is explained in terms of the marked difference in solid solubilities in … more
Date: June 6, 1962
Creator: Duhl, David N.; Hirano, Ken-ichi & Cohen, Morris
Partner: UNT Libraries Government Documents Department
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Diffusion in Cobalt-Nickel Alloys, Report No. 4

Description: The self-diffusivities of Co60 and Ni63 in cobalt--nickel solid solutions exhibit a greater activation energy below the Curie temperature (T/sub c/) than above. Values of DELTA Q = Q (ferromagnetic) -- Q (paramagnetic) are approximately equal to RT/sub c/. This observation is interpreted to indicate that the increment in activation energy arises from an increase in the formation energy of a vacancy in the ferromagnetic lattice, with the additional binding energy arising from the interaction of … more
Date: June 6, 1962
Creator: Hirano, Ken-ichi; Agarwala, R. P.; Averbach, B. L. & Cohen, Morris
Partner: UNT Libraries Government Documents Department
open access

Self-Diffusion in α-Iron During Compressive Creep

Description: "The influence of compressive creep on the self-diffusivity of α-iron has been measured in the temperature range of 742-885°C. the diffusivity is enchanced in proportion to the strain rate, but this dependence decreases with increasing temperature. The magnitude of the strain is relatively unimportant in this connection. Strain rates from 0 to -2 x 10¯³ sec¯¹ were investigated with a corresponding increase in diffusivity up to 3 x 10³ times. The results are analyzed in terms of vacancy diffu… more
Date: May 29, 1962
Creator: Hirano, Ken-ichi; Averbach, B. L. & Cohen, Morris
Partner: UNT Libraries Government Documents Department
open access

A Fast Neutron Time of Flight System for Use With Cyclotrons

Description: "Time of flight spectrometers for the study of neutrons emitted in charged particle reactions have become important in recent years, following the development of suitable photomultiplier tubes and electronic circuits for nanosecond (ns) timing measurements. The principle of operation is simple. The particles exciting the nuclear reactions in which the neutrons are produced fall on the target in bunches of the order of a nanosecond in width. the arrival of product neutrons at a organic scintil… more
Date: August 16, 1962
Creator: Fulbright, H.W.; Verba, J. W.; Deshpande, V. K. & Hamann, A. K.
Partner: UNT Libraries Government Documents Department
open access

Bimetallic Casting

Description: "Uranium and zirconium were bonded by melting the two metals in contact with one another in a bimetallic casting process. Tensile tests of specimens containing the original zone of interface between the two metals showed that all failures were at locations other than the interface. The coefficients obtained for diffusion between molten uranium and molten zirconium varied from 2.13 cm squared per day at 3,380 degrees F. to 9.17 cm squared per day at 3,510 degrees F. the activation energy for th… more
Date: September 1, 1962
Creator: Poole, Thomas & Krashes, David
Partner: UNT Libraries Government Documents Department
open access

Reggeian Analyis of Dissimilar Particle Scattering

Description: "A method for extracting information on Regge trajectories from experimental data in the analysis of highenergy, small-angle elastic scattering is outlined."
Date: January 1962
Creator: Cutkosky, Richard E.
Partner: UNT Libraries Government Documents Department
open access

Measurement of the Rate of the Reaction µ + c 12 --> B 12 +

Description: "The properties of the muon have been studied for many years and much is now known about this particle. Very accurate measurements of its mass and magnetic moment gave values in the relationship predicted by the Dirac equation and quantum electrodynamics. Experimental evidence indicating that the muon spin is 1/2 is obtained from comparison of precession measurements of the muon bound in certain mesic atoms and from observation of muonium precession. To all appearances, one would conclude tha… more
Date: May 1962
Creator: Maier, Eugene J. R.
Partner: UNT Libraries Government Documents Department
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Measurements of Negative Muon Lifetimes in Light Isotopes

Description: "Muon capture rates have been measured in a large number of the heavier elements in recent years. The amount of data available on the light elements, however, is scant. It would seem that lifetime measurements of muons in light elements would be of particular interest with regard to understanding the nuclear structure and determining the strength of the weak interaction. Furthermore, only one previous measurement of the muon capture "'isotope effect" has been done, that being for chlorine isot… more
Date: February 1962
Creator: Eckhause, Morton
Partner: UNT Libraries Government Documents Department
open access

Cosmogenic Carbon-14 and Chlorine-36 in Meteorites

Description: In 1947 Bauer, and later independently Huntley (1948), pointed out that the helium content of iron meteorites as measured by Paneth and coworkers could be accounted for by the accumulation through cosmic-ray production rather then the decay of uranium and thorium. Bauer (1947) also predicted that the meteroitic helium should contain a significant proportion of He3. I was realized that by studying the effects of cosmic radiation on meteorites much could be learned about the history of meteorite… more
Date: June 4, 1962
Creator: Goel, Parmatma S.
Partner: UNT Libraries Government Documents Department
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