Foam Separation Methods
(1972). Foam Separation Methods. Separation and Purification Methods: Vol. 1, No. 1, pp. 117-198.
Materials Literature
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Activation Energy for Electromigration Failure in Aluminum Films Containing Copper
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation F. M. d'Heurle, N. G. Ainslie, A. Gangulee, M. C. Shine; Activation Energy for Electromigration F…
Grain Size Distribution in Recrystallized Alpha-Titanium
A quantitative optical microscopy study was made on the grain size distribution in one-, two- and three-dimensions in recrystallized titanium (0.2% Oeq) by the linear intercept, planimetric and serial sectioning methods. Analysis of the results revealed that all the size distributions were logarithmic-normal and that…
Some macroscopic properties of stirring-induced crystals of polyethylene
Fibrous crystals of polyethylene are produced by crystallization from agitated xylene solutions. In this paper, the following properties of macroscopic aggregates of such crystals, grown under carefully specified conditions, and having well-defined morphologies, are investigated: (a) regularity and magnitude of long p…
A New Series of X-Ray-Opaque Reinforcing Fillers for Composite Materials
Clear, colorless glasses that absorb roentgen rays were prepared by melting together compounds yielding silica, barium oxide, boric oxide, and alumina. Barium oxide made the glasses radiopaque and gave the desired refractive index. Boric oxide lowered the melt viscosity, and alumina tended to stabilize the glasses. So…
Static and dynamic behavior of a nematic liquid crystal in a magnetic field - Part I : static results
We give an extensive theoretical and experimental discussion of the statics and dynamics of the Freedericks transition of nematic MBBA films in a magnetic field. The experimental data are obtained from measurements of the anisotropy of the thermal conductivity across the film both in the « planar » and « homeotropic »…
Thermodynamic theory of domain structures
A detailed description is given of certain results of domain structure theory which have been obtained recently and which have not, so far, been treated in monographs or reviews. A large part of the article consists of an analysis of the fundamentals of the theory; the properties of domain structures which are indepen…
Authigenic Aluminosilicate Minerals in the Tuffaceous Rocks of the Green River Formation, Wyoming
Research Article| March 01, 1972 Authigenic Aluminosilicate Minerals in the Tuffaceous Rocks of the Green River Formation, Wyoming RONALD C SURDAM; RONALD C SURDAM Department of Geology, University of Wyoming, P.O. Box 3006, Laramie, Wyoming 82070 Search for other works by this author on: GSW Google Scholar RONALD D P…
The local electric field in anisotropic molecular crystals
A general expression for the local field in anisotropic crystals is derived and applied to crystals of iodoform, benzene, naphthalene, anthracene, bi-phenyl and phenanthrene. The principal refractive indices of anisotropic crystals are related to components of an effective molecular polarizability tensor via anisotrop…
Investigation of three‐surface properties of several metals and their relation to blood compatibility
Abstract Organic‐free specimens of 5 metals were prepared and characterized by parameters indicating their relative surface charge, surface texture, and surface energy prior to evaluation of their degree of thromboresistance. For the materials studied, there was no predictive correlation between the pre‐implatation el…
MACROCYCLIC POLYETHERS: DIBENZO-18-CROWN-6 POLYETHER AND DICYCLOHEXYL-18-CROWN-6 POLYETHER
Macrocyclic polyethers: Dibenzo-18-crown-6 polyether and dicyclohexyl-18-crown-6 polyether reactant: 222 g. (1.55 moles) of bis(2-chloroethyl) ether product: Dibenzo-18-crown-6 polyether product: dicyclohexyl-18-crown-6 polyethers solvent: petroleum ether (b.p. 30–60°, approximately 200 ml. was required) solvent: dich…
Internal Stress and Dislocation Structure during Sigmoidal Transient Creep of a Copper–16 at.-% Aluminium Alloy
Creep tests on pure copper and single-phase copper-aluminium alloys (5.8, 11.5, and 16.0 at.-% Al) have been made at 450, 550, and 650° C (723, 823, and 923K) and 19.6, 39.2 and 58.8 MN/m2 (2.0, 4.0, and 6.0 kgf/mm2). Both normal and sigmoidal transient-creep curves were observed, according to the creep-stress and tem…
Mechanism of the TiNi Martensitic Transformation and the Crystal Structures of TiNi-II and TiNi-III Phases
Based on combined x-ray and neutron-diffraction data, an inference for the coexistence of the B2(CsCl) and P3̄m1 structures in the TiNi-II phase is made. Other experimental evidence indicates the proportion of the B2 to P3̄m1 structures to depend critically on the thermal and mechanical history of the alloy. Through a…
Physics of Electronic Ceramics
Abstract not Available.
Vapor-Phase Epitaxial Growth and Some Properties of ZnSe, ZnS, and CdS
Single‐crystal layers of ZnSe , ZnS , and CdS have been grown epitaxially on GaAs , GaP , and sapphire substrates in an open‐tube system by reaction of the metal vapors with the nonmetal hydride gases. Various factors are discussed which were found to affect the epitaxial growth. These include the role of vapor compos…
Recherches sur les textures des états mésomorphes - 1. Les arrangements focaux dans les smectiques : rappels et considérations théoriques
Après avoir revu la géométrie des cyclides de Dupin, plusieurs problèmes concernant leur application aux mésophases smectiques sont étudiés. Les résultats de Friedel et Grandjean [8], [9], [12] sont discutés. Si nous supposons que les coniques focales sont les seules singularités de la structure lamellaire, nous pouvo…
Instabilités magnétiques d'un smectique C
Prolongeant une récente théorie élastique des smectiques C, nous établissons une forme de cette énergie de type Frank, en fonction de deux vecteurs unitaires liés aux axes locaux du matériau. Puis, nous utilisons cette théorie pour déterminer le champ magnétique critique des instabilités de Freederichs d'une lamelle d…
Crystal Growth from the Melt under Destabilizing Thermal Gradients
Direct time correspondence between crystal growth behavior and the thermal characteristics of the melt under destabilizing gradients was established by means of “time markers” which were introduced into the growing crystals and simultaneously registered on the continuous recording of the thermal behavior of the melt.…
The Corrosion of Copper, Tin and their Alloys
"The Corrosion of Copper, Tin and their Alloys." British Corrosion Journal, 7(1), p. 6
Inhibition of Electromigration Damage in Thin Films
Mechanisms proposed to describe electromigration damage in thin film stripes are based on the observations that mass transport in films is controlled mainly by grain boundary diffusion and that irregularities in the boundary network give rise to divergencies in the mass flux. Two such irregularities, for example, are…