Materials Literature
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L’aspect des phénomènes de diffraction des rayons X et des électrons par les molécules gazeuses est bien connu ; on sait en effet que les enregistrements photographiques de ces phénomènes permettent d’observer un ensemble d’anneaux concentriques, dont le centre coïncide avec la trace du faisceau direct.
Alternating and rotational power losses at 50c/s have been measured at various flux densities for hot-rolled and cold-rolled 3% silicon iron in 0.013 in laminations, using an improved thermocouple method. The aim of the work was twofold:(a) to provide design data for the engineer on the magnitude of the power loss in…
Drawn and undrawn nylon 6 fibers subjected to dry heat setting or steam setting were dyed with an acid dyestuff and a direct dyestuff. The dye uptake of these fibers was determined, and the rate of diffusion of a disperse dyestuff was evaluated by the method of Kramer. For the drawn nylon 6, the dye uptake and the dif…
The paper discusses the relationship between the eddy currents flowing inside a conducting material and the magnetic field outside. The particular problem of a current sheet carrying a sinusoidally distributed current parallel to a conducting magnetic slab is examined in detail. It is shown that this mathematical mode…
R. D. Chambers, T. Chivers and D. A. Pyke, J. Chem. Soc., 1965, 5144 DOI: 10.1039/JR9650005144
Single crystals of BaTiO 3 were grown from the TiO 2 -rich side of the BaO-TiO 2 system. They were chunky crystal with mainly {111} form. However, these chunky crystals are obtained only under a reduced atmospheric pressure. An oxygen defect seems to have an effect on the crystal morphology. Curie point of the present…
The reaction was studied at 19 Torr pressure under static and flow conditions. Rates of reaction up to were measured at 1650°C and 19 Torr. The rates of reaction were nearly independent of flow and pressure. The kinetic data could be fitted to an Arrhenius‐type equation , where . Mass spectrometer studies of the react…
R. L. Orr and B. B. Argent, Trans. Faraday Soc., 1965, 61, 2126 DOI: 10.1039/TF9656102126
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheoretical Refinement of the Pendant Drop Method for Measuring Surface TensionsDavid WinkelCite this: J. Phys. Chem. 1965, 69, 1, 348–350Publication Date (Print):January 1, 1965Publication History Published online1 May 2002Published inissue 1 January 1965https://pubs.acs.or…
Rates of film growth in oxygenated dilute sulfuric acid have been measured on zirconium and Zircaloy‐2 at temperatures from 200° to 300°C using electrochemical methods. The resulting rate‐time plots were analyzed according to logarithmic and cubic kinetics. The kinetic constants obtained from these results, and those…
Plasticizatlon, in general, refers to a change in the thermal and mechanical properties of a given polymer which involves: (a) lowering of rigidity at room temperature; (b) lowering of temperature, at which substantial deformations can be effected with not too large forces; (c) increase of the elongation to break at r…
The statistics of photoemission as computed based on a Poisson distribution of incident photons, and a binomial distribution for the photocurrent, exactly obeys a Poisson distribution so that the fluctuation in the photocurrent is just that associated with the standard deviation of a Poisson distribution. This is comp…
A. K. Covington, J. V. Dobson and L. Wynne-Jones, Trans. Faraday Soc., 1965, 61, 2057 DOI: 10.1039/TF9656102057
The spiralling of the current in steel-cored aluminium conductors sets up an axial magnetic flux, and at power frequency this results in power loss from hysteresis in the steel core and from eddy currents. This loss increases with current and raises the a.c. resistance of the conductor; the internal inductance also in…
D. G. Edwards, A. M. Posner and J. P. Quirk, Trans. Faraday Soc., 1965, 61, 2816 DOI: 10.1039/TF9656102816
S. Mallikarjun and N. E. Hill, Trans. Faraday Soc., 1965, 61, 1389 DOI: 10.1039/TF9656101389
Abstract Experimental results obtained over a wide range of variables from three different foam fractionation columns support the theory developed in Part I.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation and Characterization of Compounds Containing both Hexabromorhenate(IV) and the Trirhenium Non abromide GroupF. A. Cotton and S. J. LippardCite this: Inorg. Chem. 1965, 4, 1, 59–65Publication Date (Print):January 1, 1965Publication History Published online1 Ma…
Abstract The decomposition of iron pentacarbonyl at pressures between one and 400 Torr was studied from 120° to 300°C. Up to about 200°C. the rate was primarily limited by surface kinetics of adsorbed carbonyl. Gas phase diffusional resistances were controlling at higher temperatures. In the kinetically controlled reg…
Abstract The distribution of cations in MgMn 2 O 4 is studied between 25 and 1000 °C by X‐ray diffraction. The values of the c/a ratio agree with the observed repartition of the cations. From the inversion of the distribution at high temperature the activation energy of the ionic migration is inferred: θ = 8100‐−18400…