The swelling of montmorillonite
K. Norrish, Discuss. Faraday Soc., 1954, 18, 120 DOI: 10.1039/DF9541800120
Materials Literature
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Anisotropie magnétique superficielle et surstructures d'orientation
Dans la première partie de ce Mémoire, on propose de considérer l'énergie magnétocristalline et magnétoélastique d'un corps ferromagnétique comme la somme de termes élémentaires relatifs chacun à une liaison, c'est-à-dire à un couple de deux atomes proches voisins. Sur cette base, on développe la théorie de la magnéto…
The Flow Properties of Textile Printing Pastes
The coslour pastes employed in the machine printing of textiles are rheologically complex fluids, the viscosity coefficient falling with increase in rate of shear or shearing stress. In order to relate the viscosity of a paste with the quality of the resulting print, it is essential that the measurements of apparent v…
Thermal Decomposition of Vulcanized Structures of Deformed Vulcanizates Containing Various Accelerators
Abstract According to the hypotheses developed by the authors, vulcanized rubber is a system in which the molecular chains are united by local molecular and chemical bonds of varying intensity. The concentration, distribution, and strength of these bonds determine the principal physical and mechanical properties of th…
Reactions in the System Li 2 O–MgO–Al 2 O 3 –SiO 2 : I, The Cordierite‐Spodumene Join
Phase equilibria along the nonbinary join between cordierite (2MgO · 2Al 2 O 3 · 5SiO 2 ) and spodumene (Li 2 O · Al 2 O 3 · 4SiO 2 ) were investigated in the temperature range 800° to 1550°C. using the quench technique on fourteen compositions. The phase diagram at high temperatures is characterized by a very small r…
Solid Solutions of the Alkali Halides. I. The Systems KBr—KCl—H2O, RbBr—RbCl—H2O1 and RbBr—KBr—H2O2 at 25°
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid Solutions of the Alkali Halides. I. The Systems KBr—KCl—H2O, RbBr—RbCl—H2O1 and RbBr—KBr—H2O2 at 25°George S. Durham, Elizabeth J. Rock, and Joan S. FraynCite this: J. Am. Chem. Soc. 1953, 75, 23, 5792–5794Publication Date (Print):December 1, 1953Publication History Pu…
Nuclear Magnetic Resonance in Metals. II. Temperature Dependence of the Resonance Shifts
The temperature dependence of the nuclear resonance shift in metals has been investigated in lithium, sodium, rubidium, cesium, and gallium. The resonance shifts were found to change by no more than 5 to 6 percent over temperature ranges of 200°, including the melting point. For sodium, the observed temperature depend…
Magnetization in Nickel Ferrite-Aluminates and Nickel Ferrite-Gallates
Trivalent aluminum and trivalent gallium have been substituted for trivalent iron in nickel ferrite NiO\ifmmode\cdot\else\textperiodcentered\fi{}${\mathrm{Fe}}_{2}$${\mathrm{O}}_{3}$ to give the systems $\mathrm{NiO}\ifmmode\cdot\else\textperiodcentered\fi{}{\mathrm{Fe}}_{2\ensuremath{-}t}{\mathrm{Al}}_{t}{\mathrm{O}}…
THE EFFECT OF PHYSICAL ADSORPTION ON THE ELECTRICAL RESISTANCE OF ACTIVE CARBON
The change of the electrical resistance of active carbon rods due to the reversible adsorption of vapors is described. The effects of six saturated hydrocarbons and ethyl chloride were studied. An interesting regularity in the results obtained with the hydrocarbons was found, namely that the extent of the resistance c…
THE PARTIAL AMMONOLYSIS OF SILICON TETRACHLORIDE
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE PARTIAL AMMONOLYSIS OF SILICON TETRACHLORIDEWalter C. Schumb and Leland H. TowleCite this: J. Am. Chem. Soc. 1953, 75, 23, 6085–6086Publication Date (Print):December 1, 1953Publication History Published online1 May 2002Published inissue 1 December 1953https://pubs.acs.or…
A New Microscope Principle
A high-resolution image may be derived from a large number of `dark-field' images of normal resolution, obtained by varying the angle of incidence of the electron beam in a standard electron microscope. The intensity distribution in each dark-field image is multiplied by an appropriate cosine function. Summing gives t…
Toroidal-Shell Expansion Joints
Abstract The problem considered in this paper is shown in Fig. 1; a thin toroidal shell of center-line radius a and torus mid-surface radius b is slit at its inner edge and welded to relatively stiff cylindrical pipe sections to form an expansion joint. Stresses and axial deformation under the axial load P are desired.
Some Moisture Relations of Wool and Several Synthetic Fibers and Blends
A variety of fibers in similar knit structures were studied to determine the effect of inherent fiber properties on speed of drying under ordinary household conditions. The major part of the drying cycle from near-saturation down to within 15% regain above a 100% R.H. equilibrium moisture regain is characterized by a…
Metal‐Ceramic Interactions: II, Metal‐Oxide Interfacial Reactions at Elevated Temperatures
Interfacial reactions of various metals (Be, Mo, Nb, Ni, Si, Ti, and Zr) with dense oxide specimens (Al 2 O 3 , BeO, MgO, ThO 2 , and TiO 2 ) were investigated at temperatures up to 1800°C. The reactions in general occurred in the same order as thermodynamic stabilities indicated. Four general types of behavior were o…
Crystal Structures of Rare Earth Oxychlorides
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal Structures of Rare Earth OxychloridesD. H. Templeton and Carol H. DaubenCite this: J. Am. Chem. Soc. 1953, 75, 23, 6069–6070Publication Date (Print):December 1, 1953Publication History Published online1 May 2002Published inissue 1 December 1953https://pubs.acs.org/do…
Solubility and molecular size distribution of crosslinked polystyrene
Abstract Polystyrene, in common with a number of other long chain polymers, can be crosslinked by exposure to high energy radiation, the degree of crosslinking being directly proportional to the radiation dose. Measurements were made of the solublity in benzene and toluene, as a function of degree of crosslinking. A t…
Uranium Oxide Phase Equilibrium Systems: IV, UO 2 –ThO 2
UO 2 and ThO 2 form a continuous series of solid solutions with the solidus‐liquidus extended from 2875°C. for UO 2 to above 3200°C. for ThO 2 .
The Polymorphism of Cordierite
During the course of a broader investigation on the cordierite‐spodumene join in the system Li 2 O–MgO–Al 2 O 3 –SiO 2 , a clearer picture of the relationships between the various reported polymorphs of cordierite has been developed. Three forms of cordierite have been recognized.*α‐Cordierite is the stable high‐tempe…
The Molecular Structure of Polyethylene. V. The Effect of Chain Branching and Molecular Weight on Physical Properties1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Molecular Structure of Polyethylene. V. The Effect of Chain Branching and Molecular Weight on Physical Properties1C. A. Sperati, W. A. Franta, and H. W. Starkweather Jr.Cite this: J. Am. Chem. Soc. 1953, 75, 24, 6127–6133Publication Date (Print):December 1, 1953Publicati…
New Optical Glasses with Good Transparency in the Infrared*
Optical glasses were produced using arsenic trisulfide as a network former and different sulfides as network modifiers. These glasses transmit infrared up to 12–13 microns in thicknesses useful for optical purposes. The transmission of glassy selenium was determined up to 21 microns and a few composite selenium glasse…