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Propagation Characteristics of Capillary Ripples, III. Capillary Ripple Velocity and Attenuation Dispersion on Clean Water Surfaces and on Various Monolayers

Description: From Abstract: "The theory and instrumentation previously described by us were applied to the systems monolayer-free distilled water; stearic acid, mixed hexadecanol and octadecanol and several long chain fatty ester monolayers; stearic acid - polyvinyl acetate mixed films and egg albumen spread films; heptanoic acid adsorbed monolayers."
Date: January 1962
Creator: Mann, J. Adiin, Jr. & Hansen, R. S.
Partner: UNT Libraries Government Documents Department

The Solubility of Holmium in Copper, Silver, and Gold

Description: From Abstract: "The solid solubility of holmium in copper, silver, and gold was determined using metallographic techniques. The composition of the first intermetallic compound in these systems was found to be Cu4Ho, Ag7Ho2, and Au3Ho. These compounds form eutectics with the solvent metals which melt at 868, 787, and 778°C respectively."
Date: January 1963
Creator: Wunderlin, W. J.; Beaudry, B. J. & Daane, A. H.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

The Equation of State of Solids at Low Temperature

Description: Technical report describing and evaluating the the three experimental methods for obtaining equation of state data at low temperatures; (1) approximate measurement of the PVT relationship by a piston-displacement technique, (2) the measurement of a heat capacity at constant volume as a function of molar volume and temperature, and (3) direct measurement of the pressure variation of the elastic constants using ultrasonic techniques. X-ray methods also might be applicable.
Date: October 13, 1961
Creator: Bernardes, N. (Newton), 1931- & Swenson, C. A.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

The Uranium-Rhenium Alloy System

Description: Abstract The phase diagram of the uranium-rhenium alloy system is presented along with a discussion on transformation kinetics of the uranium solid solutions. The phase diagram is of the double eutectic type with the intermediate phase having the composition URe2. This phase exhibits allotropy at 180°C and melts congruently at 2200°C. URe2 reacts sluggishly with the uranium solid solutions below 750°C to form the peritectoid compound U2Re. Eutectic reactions occur at 1105° and 2105°C at respective compositions of 10.5 and 65.5 wt. % Re. Eutectoid reactions occur at 643° and 681°C at compositions of 1.4 and 6 wt. % Re, respectively. The maximum solubility of rhenium in α uranium is about 0.4 wt. % at 643°C and in β uranium is 1.9 wt. % at 681°C. The solubility of rhenium in γ uranium is 6 wt. % at 681°C and increases to about 7 wt. % at 975°C. The solubility of uranium in rhenium is 0.6 wt. % at room temperature with little variation up to 2000°C. Alloys of β and γ uranium containing more than about 1.2 and 7 wt. % Re respectively, can be readily supercooled to room temperature. Rapid cooling of γ alloys containing less than about 7 wt. % Re resulted in a direct γ → α′ transformation, the α′ state being a supersaturated α phase having a banded microstructure. Evidence is presented for the existence of two transition states, one involving the γ phase decomposition and the other the β → α transformation. The sequence of phase changes involved in cooling the uranium solid solutions is discussed.
Date: January 14, 1963
Creator: Jackson, R. J. (Robert James), 1929-; Williams, D. E. & Larsen, W. L.
Partner: UNT Libraries Government Documents Department

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 with acetone-water-hydrochloric acid solutions of different compositions. Successful separations of a number of mixtures are reported.
Date: May 10, 1962
Creator: Fritz, James S. (James Sherwood), 1924- & Rettig, Thomas A.
Partner: UNT Libraries Government Documents Department

Complex Systems of the Rare Earth Metals With Glycolate, Lactate, and α-Hydroxyisobutyrate Ligands

Description: From Abstract : "The solubilities of the individual rare earth lactates and α-hysroxyisobutyrates in water at 20 and 60° were determined for comparison with the rare earth glycolate solubilities determined earlier."
Date: February 21, 1963
Creator: Powell, J. E.; Karraker, R. H.; Kolat, R. S. & Farrell, J. L.
Partner: UNT Libraries Government Documents Department

The Treatment of a Cesium Ore by Sulfur Chloride and Chlorine

Description: From Abstract : "A Southern Rhodesian cesium ore containing essentially pollucite was chlorinated by a gaseous mixture of sulfur chloride and chlorine at temperatures between 550 and 770°C. The optimum conditions with the fixed bed reactor used in this study were chlorination at 650°C for 4 1/2 hr with an more particle size that passes a 150 mesh sieve."
Date: 1964
Creator: Hamilton, C. B.; Young, T. L. & Wilhelm, H. A.
Partner: UNT Libraries Government Documents Department

Magnetostriction in Dy and Ho

Description: From Abstract : "Phenomenal magnetostriction has been observed in Dy and Ho single crystals. ... [The} magnetostriction curve showed three slightly developed knees which agree well with the knees observed in the magnetization data for Ho previously reported."
Date: 1963
Creator: Legvold, S.; Alstad, J. & Rhyne, J.
Partner: UNT Libraries Government Documents Department

Mass Spectrometric Evidence for the Pyridoxal-Leucine Reaction Mechanism

Description: From Abstract : "The mass spectrum of leucine-dn, prepared by the reaction of pyridoxal with excess leucine in D2O medium, has been established using the crucible source techniques. ... The reaction can be used for the selective α, β-deuteration of amino acids other than leucine.
Date: May 3, 1963
Creator: Junk, G. A. & Svec, H. J.
Partner: UNT Libraries Government Documents Department

Isotopic Composition of Vanadium From Organic Sources

Description: From Abstract : "The V50/V51 ratios of vanadium from the ascidians, Ciona intestinalis and Ascidia ceratodes were measured, on an absolute basis, by comparison with a reference using a CEC Model 21-220 180° mass spectrometer."
Date: 1963
Creator: Calellen, Jennings; Flesch, Gerald D. & Svec, Harry J.
Partner: UNT Libraries Government Documents Department

Rare Earth Intermetallic Comounds

Description: From Abstract : "Some of the important properties of the rare earth intermetallic and semimetallic compounds are reviewed. ... A compilation of the crystal structures of these compounds is appended to this review."
Date: 1964
Creator: McMasters, O. D. & Gschneidner, K. A., Jr.
Partner: UNT Libraries Government Documents Department

The Inference of Adsorption from Differential Double Layer Capacitance Measurements

Description: From Abstract : "Dependence of boundary tension and capacitance at the mercury-aqueous 0.1 N HClO4 interface on polarization and organic solute concentration were determined for the colutes n-amyl alcohol and phenol. ... An earlier treatment proposed by this Laboratory based on a (non-thermodynamic) assumption of linear variation of surface charge density with coverage appears adequately justified for inference of fractional surface coverages near the electrocapillary maximum, but must be considered approximate for evaluation of molar area at full coverage in cases where linear variation of charge with coverage has not been demonstrated."
Date: April 26, 1963
Creator: Hansen, Robert S.; Kelsh, Dennis J. & Grantham, D. H.
Partner: UNT Libraries Government Documents Department

Reinvestigation of the CC Stretching and CH3 Rocking Assignments In Isopropyl and tert-Butyl Halides

Description: From report: "In a series of paper (1-3) Sheppard has analyzed the vibrational spectra of simple alkyl halides. During the course of an investigation of the spectra of similar alkyl thiocyanates certain anomalies appeared in the assignments of the CC stretching and methyl rocking vibrations in isopropyl and tert.-butyl halides."
Date: May 3, 1963
Creator: Ames Laboratory, Iowa State University
Partner: UNT Libraries Government Documents Department

Crystalline Field Splittings in Holmium and Dysprosium Ethylsulfates

Description: From report : "It has become apparent that pragmatic resonance data alone are insufficient to correctly evaluate crystal field parameters for rare-earth ethylsulfates, and that heat capacity data above 20°K are a useful aid in determining whether low lying levels obtained by absorption spectroscopy have been correctly identified."
Date: March 1963
Creator: Spedding, F. H.; Gerstein, B. C.; Haas, W. J.; Phillips, E. & Sutherland, W. L.
Partner: UNT Libraries Government Documents Department

Niobium-Tin-Aluminum Alloy Studies

Description: From Abstract : "A proposed constitutional diagram was developed from equilibrium data obtained for the niobium-tin binary alloy system. ... Alloying Nb3Sn with Nb3Al appears to raise the zero field superconducting transformation temperature of Nb3Sn slightly."
Date: February 1963
Creator: Ellis, Thomas Gordon & Wilhelm, Harley A.
Partner: UNT Libraries Government Documents Department

Chemical Binding in the Water Molecule

Description: From Introduction : "This analysis partitions the electron density and the electronic pair density of the molecule into components corresponding promoted atomic states, to quasiclassical coulombic interactions of these promoted states, and to interactions resulting from the sharing of electrons between atoms."
Date: May 3, 1963
Creator: Edmiston, Clyde & Ruedenberg, Klaus, 1920-
Partner: UNT Libraries Government Documents Department

Tricarbalyllic Acid (Propane-1, 2, 3-Tricarboxylic Acid)

Description: From report : "Tricarbalyllic acid (propane-1, 2, 3-tricarboxylic acid) has a structure similar to that of citric acid, except that it lacks the hydroxyl group attached to the middle of the carbon atom. Properties of the rare earth citrates have been used very successfully in the separation of rare earths by ion exchange methods; consequently it was deemed advisable to study the rare-earth compounds which form with the anion if triarbalyllic acid."
Date: 1964
Creator: Gupta, A. K. & Powell, J. E.
Partner: UNT Libraries Government Documents Department

Gamma Ray Efficiencies for Well Type Scintillation Crystals

Description: From Abstract : "Gamma ray efficiencies for various sized well type NaI(Ti) crystals have been calculated using an IBM 704 digital computer. The adjustable parameters in the program are the gamma ray energy, the heights and diameters of the crystal and the well, the thickness of the well lining, and the positions of the (point) source inside the well. Some typical results are presented in graphical form."
Date: February 8, 1963
Creator: Dingus, Ronald S. & Stewart, M. G.
Partner: UNT Libraries Government Documents Department