Materials Literature
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Journal Article Sulphur Bacteria in Relation to Corrosion Get access G. H. Booth G. H. Booth National Chemical Laboratory, Teddington, Middlesex, England Search for other works by this author on: Oxford Academic Google Scholar Journal of Applied Bacteriology, Volume 27, Issue 1, 1 April 1964, Pages 174–181, https://do…
Hardening by gamma irradiation was investigated in eleven alkali halides with the rocksalt structure. The linear dependence of the flow stress upon the one-half power of the F-center concentration, as previously observed in LiF and KCl, was also observed in these new substances. (The earlier experiments showed that th…
Lamellar thickness, melting temperature, and density were measured for bulk polyethylene crystallized by the application of a fixed pressure to molten polymer at different temperatures. Melting temperature varied from 135.2° to 139.2°C, and density varied from 0.9759 to 0.9842 g/cc. Small-angle x-ray diffraction yield…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and Properties of Sodium and Potassium Molybdenum Bronze CrystalsA. Wold, W. Kunnmann, R. J. Arnott, and A. FerrettiCite this: Inorg. Chem. 1964, 3, 4, 545–547Publication Date (Print):April 1, 1964Publication History Published online1 May 2002Published inissue 1…
Previous work has shown that three factors largely determine the handle of suiting materials. The present paper describes similar work on lingerie and dress fabrics and summarizes the previous work on suiting fabrics. Smoothness, stiffness, and thickness account for most of the differences in handle in all the fabrics…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelaxation of Disulfide and Tetrasulfide PolymersA. V. Tobolsky, W. J. MacKnight, and M. TakahashiCite this: J. Phys. Chem. 1964, 68, 4, 787–790Publication Date (Print):April 1, 1964Publication History Published online1 May 2002Published inissue 1 April 1964https://pubs.acs.…
The thermal dilatation of VO 2 has been measured on ceramic samples from room temperature to 95°C, in connection with Mott's consideration which interpretes the non-metal to metal transition observed in some transition metal oxides as an effect of contraction of lattice spacings. A discontinuous volume expansion was u…
The oxidation‐reduction equilibrium between ferrous and ferric iron in Na 2 O · 2Si0 2 glass melts was studied by equilibrating melts with various oxygen partial pressures. Exceedingly long equilibration times were required to obtain meaningful results. The reaction appears to be diffusion‐controlled and may be expres…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransition Metal-Hydrogen Compounds. II. The Crystal and Molecular Structure of Potassium Rhenium Hydride, K2ReH9S. C. Abrahams, A. P. Ginsberg, and K. KnoxCite this: Inorg. Chem. 1964, 3, 4, 558–567Publication Date (Print):April 1, 1964Publication History Published online1…
Pit origin and formation in stainless steels are discussed according to results of investigations from the following points of view: Conditions for the Existence of Pitting Corrosion.Pitting potential range and pitting potentials. Functions dependent on the potential which are important for pitting corrosion, effect o…
The influence of impurity segregation on the kinetics of spherulitic crystallization is examined. Radial growth rates over a range of temperatures are reported for a number of polymers containing various proportions of impurity species of widely varying molecular weight. Variations of growth rate with molecular weight…
On the basis of present investigations, copper(II) compounds with subnormal magnetic moments can be roughly divided into two types. Those with direct copper-to-copper interaction have short copper-to-copper distances. In these compounds, of which copper(II) acetate monohydrate is an example, the bonding is postulated…
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
A systematic study of impurity segregation in spherulitic crystallization is described. The experiments deal principally with high polymers, in which the role of ``impurities'' is fulfilled by stereoirregular molecules or by molecules of low molecular weight. It is shown that these species are rejected preferentially…
The theory of the work-hardening curve of a pure single crystal is discussed. An outline is given of the experimental methods available for the study of the mechanism of plastic deformation and work hardening. An attempt is made to correlate existing theories of work hardening. The theory is illustrated by discussions…
Abstract Combined X-ray topographic and phase-contrast micrographic studies of natural diamond octahedral faces show that pyramidal trigons are always associated with dislocation outcrops. No dislocations outcrop at flat-bottomed trigons. On the other hand, absence of trigons does not necessarily imply absence of outc…
Fission fragment angular distributions have been measured with gold surface barrier detectors for proton-induced fission of ${\mathrm{U}}^{233}$, ${\mathrm{U}}^{234}$, ${\mathrm{U}}^{235}$, ${\mathrm{U}}^{236}$, ${\mathrm{U}}^{238}$, ${\mathrm{Np}}^{237}$, and ${\mathrm{Pu}}^{239}$. Absolute fission cross sections wer…
The spectrum of the recombination radiation from diamond has been measured over the photon energy range 4.9-5.5 eV at 90, 160, 207, and 320\ifmmode^\circ\else\textdegree\fi{}K. At 90\ifmmode^\circ\else\textdegree\fi{}K, recombination emission has been detected from ten samples out of a batch of fifteen single crystals…
Received 17 February 1964DOI:https://doi.org/10.1103/PhysRevLett.12.275©1964 American Physical Society
The physical model of two-dimensional p-electron delocalization proposed by Bersohn for crystalline iodine is examined. The principal features of the model are adopted, including the Hückel method for writing one-electron orbitals and the restriction to nearest nonbonded neighbor interactions. Crystal symmetry is expl…