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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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Generalized Overrelaxation Method for Operator Equations

Description: "In Householder, using Weissinger's identity , obtained the necessary and sufficient conditions for the c onvergence of the Seidel method for the solution of finite matrix equations of the form (D-S-S*-F)u = f. The same coniditions were also obtained by Krein and Prozorovakaya for an analog of the Seidel method for the operator equations of the form (D+S+S*)u = f in a Hilbert space. The purpose of this article is to extend the result of the above authors to the generalized overrelaxation iter… more
Date: June 14, 1962
Creator: Petryshyn, Wolodymyr V., 1929-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Linearized Three Component Magneto-Hydrodynamics

Description: "A linearized three component MHD theory is given. The three components are two oppositely charged species and a neutral species. Linearized macroscopic equations are presented which in the limit of vanishing magnet field reduce to fluid dynamical equations, and in the limit of vanishing neutral components is frictional. In addition the sound speed that enters is a function of three equilibrium densities. These equations yield a dispersion relation which is tenth order in the wave speed. The d… more
Date: April 30, 1962
Creator: Liboff, Richard L., 1931-2014
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On Certain Finite Difference Schemes for the Equations of Hydrodynammics

Description: "We will consider two finite difference schemes for the solution of the Navier-Stokes equations in one space dimension. The first is a method used by Lax and Wendroff. The second method is based on an approximate solution of the centered, implicit difference equations. Since this approximate solution is obtained by successive substitutions, we will refer to this second method as an iterative method."
Date: March 1, 1962
Creator: Gary, John William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Colimapu Formation, Chile

Description: Discussing Laboratory and field studies that show that the geologic history and environment of the Colimapu formation of central Chile differed considerably from those of the uranium-bearing Diamantiano formation of Argentina with which the Upper Colimapu has been correlated.
Date: October 1962
Creator: Bowes, William A.; Knowles, Paul H.; Brito, Aldo Moraga; H., Erik Klohn & C., Mario Serrano
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flame Spectra of Vanadium, Niobium, Rhenium, Titanium and Molybdenum

Description: Abstract Line spectra of vanadium, niobium, titanium, molybdenum and rhenium of sufficient intensity to allow detection at the 1–10 p.p.m. level can be excited in fuel-rich, oxy-acetylene flames. For the strongest lines of tungsten, the sensitivity of detection is 90 p.p.m. Weak lines of zirconium, hafnium, osmium, tantalum and uranium are also observed in these flames. Recordings of the spectra are given along with wavelength tables of the strongest lines.
Date: July 23, 1962
Creator: Fassel, Velmer A.; Myers, Robert B. & Kniseley, Richard N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cation Exchange in Acetone-Water-Hydrochloric Acid

Description: Abstract: Distribution coefficients have been measured for the partition of metal ions between cation exchange resin and acetone-water-hydrochloric acid solutions. the differences in distribution coefficients of metal ions are greater in acetone-water media than in aqueous media of the same hydrochloric acid concentration. Using distribution coefficient data, conditions for column separations of mixtures can be selected. Column separations of metal ion mixtures can be effected by eluting wit… more
Date: May 10, 1962
Creator: Fritz, James S. (James Sherwood), 1924- & Rettig, Thomas A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Acid-Base Reactions and Kinetics of the Halates in Fused Nitrates

Description: From Abstract : "The mechanism of the reactions of the halates, bromate, chlorate, and iodate, with dichromate in fused alkali nitrates has been shown to involve a fast equilibrium followed by a slow rate determining strip to give oxygen and halogen gases as final products." Experiments outlined serve as insight into the structure of fused salts or fused electrolytes.
Date: November 1962
Creator: Schlegel, James Max & Duke, P. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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