Electron-Microscopy of Degraded Cellulose Fibres
(1952). Electron-Microscopy of Degraded Cellulose Fibres. Journal of the Textile Institute Transactions: Vol. 43, No. 4, pp. T196-T201.
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Molecular weight degradation of polyvinyl acetate on hydrolysis
Abstract When the acetate groups of polyvinyl acetate are removed and subsequently restored, the viscosity of the polymer is usually decreased. It is found that after such processing, vinyl acetate polymers prepared at a given temperature approach a maximum viscosity regardless of the viscosity of the original resins.…
Visco-Elastic Effect in Solutions of Simple Particles
Calculations are performed on a simple model to show that dilute solutions of asymmetric particles possess a frequency dependent intrinsic viscosity and a rigidity. The model used is that of a solution containing elastic dumbbells, that is, particles consisting of two rigid bodies held together by elastic forces. Part…
Parallel Diffraction Grating Anomalies*
Experiments are described which show that grating anomalies are not confined to that part of the incident light which is polarized with its electric vector perpendicular to the rulings. The appearance of the new anomalies is attributed to groove depth. The parallel anomalies have been found only when using gratings wi…
The Nature of Work-Hardening
Two kinds of work-hardening are discussed, interaction-hardening and source-hardening. Interaction-hardening arises because a large stress must be applied to move a dislocation through a material which already contains a large number of dislocations. This paper is mainly concerned with source-hardening which occurs be…
Gamma-Ray Absorption Coefficients
A survey is given of the absorption of radiation in the energy range from 0.1 Mev to 6 Mev. Results of the theories of Compton effect, photoelectric effect, and pair production are given in the form of equations, tables, and curves. Necessary considerations in studying absorption coefficients are discussed and results…
Extinction des chaux grasses
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XXIII Congrès de Chimie Industrielle
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Normas francesas sobre aglomerantes hidráulicos
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Mouture et moulins de laboratoire
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How temperature and moisture changes may affect the durability of concrete
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Confused chemietry of portland cement
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“Containers” para transporte de cemento de carga automática; Long truck bodies
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La perforation èlectrique dans l’exploitation des carrières
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Breakage of Carbon-Rubber Networks by Applied Stress
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBreakage of Carbon-Rubber Networks by Applied StressA. F. Blanchard and D. ParkinsonCite this: Ind. Eng. Chem. 1952, 44, 4, 799–812Publication Date (Print):April 1, 1952Publication History Published online1 May 2002Published inissue 1 April 1952https://pubs.acs.org/doi/10.10…
XXXVIII. Twin formation, in cadmium
Summary Experiments on the formation of twins in single crystal wires of cadmium under tension demonstrate the essentially discontinuous nature of the process of twin growth, and produce evidence in favour of a critical resolved shear stress law for twinning. Twinning can contribute to creep at room temperature but no…
Dielectric Constant in Perovskite Type Crystals
Slater's theory of the dielectric constant in BaTi${\mathrm{O}}_{3}$ has been extended by treating the ionic polarizability quantum mechanically instead of classically. This leads to an expression for the dielectric constant which is good at all temperatures and shows a deviation from the Curie-Weiss law at low temper…
The reaction between carbon monoxide and oxygen on cuprous oxide at room temperature
Abstract The catalytic reaction has been studied on a granular surface of the metal coated with cuprous oxide. The nature of the adsorbed species in the stationary state of the reaction has been investigated by measurements of heats of adsorption and by B. E. T. measurements. The adsorption characteristics of cuprous…
The thermal decomposition of lithium aluminium hydride
Abstract Lithium aluminium hydride on heating decomposes in three stages: (a) an initial surface reaction during the induction period, followed by (b) an interface reaction giving an S-shaped pressure against time curve, corresponding to LiAlH4 → LiAlH2 + H2, and (c) a slow process during which a third hydrogen atom i…
The Viscosity and Rigidity of Gelatin in Concentrated Aqueous Systems. I. Viscosity
The viscosity of gelatin solutions at concentrations between 100 and 500 g./l. has been studied as a function of pH, ionic strength, and temperature. In these concentrated systems the predominant factor determining the viscosity appeared to be Coulombic forces between ionized groups on adjacent chains.