Joseph C. Calabrese、Lawrence F. Dahl、Armando Cavalieri 等 6 位作者1974-04-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structure of a hexanuclear nickel carbonyl dianion, bis(tri-.mu.2-carbonyl-tricarbonyltrinickel)(2-), and comparison with bis(tri-.mu.2-carbonyl-tricarbonyltriplatinum)(2-). Unprecedented case of a metal cluster system possessing different metal architectures f…
Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes
Elizabeth A. Blakeman、J. A. Gard、Cameron G. Ramsay 等 4 位作者1974-04-01Journal of Applied Chemistry and Biotechnology
Abstract In hydrothermal reactions of lime and quartz with water or aqueous NaOH at 150 °C or 180 °C and Ca: Si = 0.83, the rate of reaction of the quartz increases with NaOH concentration. At 180 °C and Ca: Si = 0.83, the conversion into tobermorite of the semi‐crystalline calcium hydrosilicate initially formed occur…
Concrete and Cement Materials ResearchRecycling and utilization of industrial and municipal waste in materials productionClay minerals and soil interactions
L. B. Shaffer、R. W. Hendricks1974-04-01Journal of Applied Crystallography
The unified theory of absolute intensity measurements in small-angle X-ray scattering has been experimentally verified by determining a collimation system and wavelength-independent calibration constant for polyethylene (Lupolen). Consistent values of this constant were determined for three X-ray wavelengths (Ag Kα, M…
X-ray Spectroscopy and Fluorescence AnalysisRadiation Shielding Materials AnalysisX-ray Diffraction in Crystallography
James J. O’Malley、Walter J. Stauffer1974-04-01Journal of Polymer Science Polymer Chemistry Edition
Abstract Isomeric homopolymers and random copolyesters based on sebacic acid and isomeric hexanediols were synthesized by condensation techniques and characterized by NMR, GPC, intrinsic viscosity, and DSC. Among the homopolymers, only the polyester derived from the linear 1,6‐hexanediol was found to be crystalline. T…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
R. Postle1974-04-01Journal of the Textile Institute
A general geometrical model, based on the assumption of a constant unit-cell configuration for a particular knitted construction and derived by the present author in a previous publication is applied to plain, interlock, and various rib-knitted constructions to enable simple relations to be derived for the effective d…
Mechanical Behavior of CompositesAdditive Manufacturing and 3D Printing TechnologiesTextile materials and evaluations
Hans C. Ohanian、Carl G. Ginsburg1974-04-01American Journal of Physics
In order to illustrate the concepts of antibound ‘state’ and resonance, we present some simple examples of elastic scattering in one dimension. The phase shift, scattering probability, time delay, and wave amplitude are plotted as a function of energy for a particle incident on a square well (deuteron) and a square we…
Solid-state spectroscopy and crystallography
J. P. van der Ziel1974-04-01Physical review. B, Solid state
The optical absorption, emission, and excitation spectrum and the exchange splittings of the first-neighbor ${\mathrm{Cr}}^{3+}$ pairs in ${\mathrm{Al}}_{2}$${\mathrm{O}}_{3}$ have been studied. The earlier experimental level assignment is shown to be inconsistent with the theory of Pryce and Naito. The new ground-sta…
Glass properties and applicationsCrystal Structures and PropertiesSpectroscopy and Quantum Chemical Studies
G. DiGiacomo、P. P. Peressini、Richard E. Rutledge1974-04-01Journal of Applied Physics
The objective of this work was to determine the Cu diffusion coefficient in silver thin films as a function of temperature, and Cu electromigration velocity as a function of electric current density and to test whether linearity between electromigration and current density was preserved at high current stress. An Ag s…
Semiconductor materials and devicesElectrodeposition and Electroless CoatingsCopper Interconnects and Reliability
Sin Giu Kang、Hideya Onodera、Hisao Yamamoto 等 4 位作者1974-04-01Journal of the Physical Society of Japan
Mössbauer effect study of bcc Fe-Mn alloys has been made for compositions up to about 13% Mn. The data can be interpreted on the assumption that the Fe and Mn moments are almost constant being 2.2 µ B and 0.9 µ B , respectively, which is consistent with various NMR data, and also with the CPA calculation by Hasegawa a…
Microstructure and Mechanical Properties of SteelsMagnetic Properties and ApplicationsMagnetic Properties of Alloys
Klaus‐Jürgen Range、Gerd Engert、Wiking Müller 等 4 位作者1974-04-01Zeitschrift für Naturforschung B
Pressure treatment of TlInS 2 -I at 30 kbar, 300°C yielded the rhombohedral modification TlInS 2 -II (space group R3̄m, α = 3,83 Å, c= 22,23 Å, Z = 3). TlInS 2 -II has a-NaFeO 2 -structure and is metastable at all ρ, T-conditions investigated. At 30 kbar, 400°C, TlInS 2 -I and TlInS 2 -II transform to the hexagonal mo…
Crystal structures of chemical compoundsNonlinear Optical Materials ResearchSolid-state spectroscopy and crystallography
Takeo Iida、Motoharu Nakanishi、Kunio Gotō1974-04-01Journal of Polymer Science Polymer Chemistry Edition
Abstract Poly(vinyl chloride) (PVC) alone or mixed with 10 wt‐% and 50 wt‐% TiO 2 , SnO 2 , ZnO, and Al 2 O 3 were pyrolyzed by using a pyrolysis gas chromatograph. Benzene, toluene, ethylbenzene, o ‐xylene, styrene, naphthalene, and various chlorobenzenes were identified. No hydrocarbons could be detected in pyrolysi…
Lignin and Wood ChemistryPolymer Science and PVC
Hiroshi Yamauchi、Hiroshi Watanabe、Yūichi Suzuki 等 4 位作者1974-04-01Journal of the Physical Society of Japan
Magnetization measurements of α-phase Fe-Mn alloys, in which manganese concentration is extended up to 11 at% by cold-working techniques, have been made from liquid He temperature to room temperature. The magnetic moment decreases linearly with increasing manganese concentration and assuming that the magnetic moment o…
Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys
George H. Nancollas、Michael M. Reddy1974-04-01Society of Petroleum Engineers Journal
Abstract Reviewed here is the kinetics of crystal growth of sparingly soluble minerals such as calcium carbonate, calcium sulfate, and barium sulfate, which frequently cause scaling problems in oil fields. For all three electrolytes, the crystal growth is surface controlled and follows a second-order rate law with an…
Calcium Carbonate Crystallization and InhibitionMinerals Flotation and Separation Techniques
Arun K. Varshneya、M. E. Milberg1974-04-01Journal of the American Ceramic Society
The kinetics of K + ‐Na + exchange in sodium borosilicate glasses containing 20 mol% Na 2 O were studied as a function of glass composition and exchange time and temperature. The distribution of K in the glass after exchange in molten KNO 3 was determined using an electron microprobe. In those specimens which were not…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsNuclear materials and radiation effects
Albert V. Crewe1974-04-01Journal of Microscopy
SUMMARY The scanning transmission electron microscope is of quite recent origin, and it is only in the last few years that it has been shown that this instrument is capable of giving the same high resolution as the conventional electron microscope. In this article we examine the conditions necessary for the achievemen…
Advanced Electron Microscopy Techniques and ApplicationsAdvancements in Photolithography TechniquesElectron and X-Ray Spectroscopy Techniques
James R. Black1974-04-01IEEE International Reliability Physics Symposium proceedings
This survey paper on electromigration describes factors which govern the rate of electromigration and therefore relate to the lifetime of conductors stressed at high current density. These include the type of metal conductor, the conductor cross sectional area, lattice, grain boundary and surface diffusion effects, th…
Electronic Packaging and Soldering TechnologiesCopper Interconnects and Reliability
Richard E. Mistler、R. L. Coble1974-04-01Journal of Applied Physics
A technique is presented to calculate grain-boundary widths and grain-boundary diffusion coefficients in metals and nonmetals using grain growth, sintering, diffusion and/or creep data. High-purity metals yield boundary widths of the order of a few atomic diameters, whereas ionic materials yield ``effective boundary w…
Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesSolidification and crystal growth phenomena
P. S. Pershan1974-04-01Journal of Applied Physics
A method for calculating stress-strain fields around edge dislocations in smectic-A samples is discussed. In large part the method is isomorphic with the formalism for calculating magnetic fields around lines of electric current. The force law between dislocations that follows from the analogy is equivalent to the acc…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsAdvanced Materials and Mechanics
R.A. Strehlow、H.C. Savage1974-04-01Nuclear Technology
The permeation and the pressure dependence of the permeation of hydrogen isotopes through metals and oxidized metals were studied at temperatures from 300 to 800°C and at pressures of 10-3 Torr to 1 atm. Such knowledge is important to tritium management in both fusion and fission nuclear reactors. An adequate basis fo…
Fusion materials and technologiesNuclear reactor physics and engineeringNuclear Materials and Properties
James L. White、Jerry W. Crowder1974-04-01Journal of Applied Polymer Science
Abstract An experimental study of the influence of carbon black loading, particle size, and structure on the extrusion characteristics of polybutadiene and butadiene–styrene copolymer synthetic rubber is described. The development of extrudate distortion and its mechanisms are considered. The viscosity and die swell h…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesRheology and Fluid Dynamics Studies