Utilization of fly-ash
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Materials Literature
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Manufacture of gypsum plaster and wallboard
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Aperçu sur les liants hydrauliques riches en MgO
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Strain Induced Grain Boundary Migration in High Purity Aluminum
A method has been developed for the study of grain boundary migration in high purity aluminum, which allows positive determination of the direction of grain boundary movements. By means of this method it was confirmed that the migration of grain boundaries resulting from surface energy takes place in the direction tow…
Determination of Crystallite Size with the X-Ray Spectrometer
The accuracy of the Scherrer crystallite size equation is limited in part by the uncertainty in β, the experimentally deduced pure diffraction broadening. Currently used procedures for estimating β from the observed breadth of a Debye-Scherrer line are not, in general, applicable to the x-ray spectrometer. By making u…
Kinetics of Heterogeneous Nucleation
Consider a phase transition α⇄β. Stable β-embryos can be retained in the temperature range of α-stability in cavities of suitable extraneous solids present in the system. Retained β-embryos may nucleate the α→β-transformation in the range of β-stability. Using these concepts a theory for the effect of thermal history…
The Theory of the Change in the Conductivity of Metals Produced by Cold Work
An attempt is made to calculate the increase in the residual electrical resistance of cold-worked metals by attributing the effect to an elastic distortion similar to that produced by the presence of edge type dislocations. It is shown that, in single crystals, the direction of the dislocation axes, the slip direction…
485. Heteropoly-tungstic acids and heteropoly-tungstates. Part II. 11-Tungsto-aluminic, -chromic(III), and -manganic(III) acids and their salts
J. A. Mair and J. L. T. Waugh, J. Chem. Soc., 1950, 2372 DOI: 10.1039/JR9500002372
344. Substituted anthracene derivatives. Part I. cis- and trans-9 : 10-Dimethyl-9 : 10-dihydroanthracene
G. M. Badger, M. L. Jones and R. S. Pearce, J. Chem. Soc., 1950, 1700 DOI: 10.1039/JR9500001700
Some Chemical and Physical Properties of Rubber
The chemical constitution and physical state of natural rubber in its viscous, high-elastic and crystalline conditions are described. It is shown that those depend on long hydro-carbon chains which are normally coiled and tangled. The high elasticity of rubber is made possible by the ability of the chains to straighte…
484. Heteropoly-tungstic acids and heteropoly-tungstates. Part I. 11-Tungstoferric(III) acid and its salts
J. A. Mair, J. Chem. Soc., 1950, 2364 DOI: 10.1039/JR9500002364
Influence of temperature on the adsorption of water vapor by collagen and leather
The adsorption of water vapor by co ll agen, commercial hide powder, and severa l leathe rs was determined at various relative humidities ranging from about 0 to 96 percent, at 28, 50, and 70 C. Determi nations were also made on chestnut a nd quebracho tann ins at 28 C at vari o us re lative humi dities. The results i…
Some Rare Earth Activated Phosphors
Two classes of rare earth activated phosphors having interesting and unusual properties are described. The first series, consisting of alkaline earth silicates activated by divalent europium, shows a wide range of fluorescent colors when excited by 3650 Å radiation. Some of these compounds are characterized by the sta…
Thermionic Work Function of the (100) Face of a Tungsten Single Crystal
A slab with one surface cut and etched parallel to (100) crystallographic planes formed the cathode in a low power electron microscope. The electron image of the cathode was formed on a fluorescent screen with a small hole at the center. An electron collector placed behind the hole permitted a measure of the electron…
2-MERCAPTOBENZIMIDAZOLE
The physical properties of 2-mercapto benzimidazole and main methods for its preparation are introduced.The situations of production and demand for 2-mercapto benzimidazole in China and in Japan are described in brief. Meanwhile,the application fields of 2-mercapto benzimidazole as rubber antioxidant and pharmacy inte…
Internal structure of granitic pegmatites
"Internal structure of granitic pegmatites." Geologiska Föreningen i Stockholm Förhandlingar, 72(3), pp. 361–362
Studies on the ecology of Zostera marina and Zostera nana (1)
The so-called “MOBA” or “Zostera-zone ” is a place of interest from the view-point of fishery in the inland sea. In Ikawazu-cove Zostera marina and Z. nana make “MOBA”, where the ecological studies on Zosterae has been carried out. In this paper the enviromental factors-hydrographycal and biological-which seem to corr…
The influence of stress upon the electrode potential and polarization of iron and steel in acid solution
M. T. Simnad and U. R. Evans, Trans. Faraday Soc., 1950, 46, 175 DOI: 10.1039/TF9504600175
Sodium peroxide decomposition of minerals in platinum vessels
T. A. Rafter, Analyst, 1950, 75, 485 DOI: 10.1039/AN9507500485
The swelling of cross-linked amorphous polymers under strain
L. R. G. Treloar, Trans. Faraday Soc., 1950, 46, 783 DOI: 10.1039/TF9504600783