Materials Literature
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Abstract Rutile (TiO 2 ) single crystals of various degrees of stoichiometry have been compressed at temperatures in the range 600 to 1300 °C; there is no ductility below 600 °C. Cleavage has been observed on (100), (110) and (101) planes, the exact mode of fracture being dependent on orientation and composition. Thes…
Isothermal sections at 1010° and 800°C have been determined in the system by the quenching technique. A determined solubility of system at 1010°C is in good agreement with recent revisions of that binary melting diagram. The steep nature of the corundum liquidus curve in the system is found to continue into the ternar…
(1964). The Mechanism of Protection by Organic Coatings. Transactions of the IMF: Vol. 41, No. 1, pp. 121-126.
Materials and components used in the MSRE are described and design data are given. The objectives of the program are discussed. (P.C.H.)
Abstract not Available.
On décrit deux catégories de sulfures de terres rares et de sodium. Dans les deux cas, la terre rare T et l'ion Na ont la coordinence six. La première catégorie comprend les terres rares T = La, Ce, Pr, Nd. La structure peut être considérée comme étant du type NaCl, lacunaire et désordonnée. Les anions S forment un pa…
Nous avons étudié FeCr2O4 dans le but de déterminer sa structure magnétique. A la température de 4,2 °K la structure est certainement différente du modèle Yafet-Kittel et peut, en première approximation, être considérée comme une spirale ferrimagnétique du même type que celle proposée par Hastings et Corliss dans le c…
Dilute ferromagnetic alloys with iron, nickel, or cobalt as host metal and dilute alloys of transition metals with hosts such as copper, gold, silver, or zinc were studied using the Mossbauer effect. (R.E.U.)
The remarkable ability of liquid gallium to wet the surfaces of many solids, including human teeth (1), has stimulated interest in gallium alloys as possible filling materials in dentistry (1, 2). A number of gallium alloys which possess some of the properties necessary in dental filling materials have been reported (…
Abstract The reactions of the oxides SiO 2 , MoO 3 , and WO 3 with steam at temperatures between 400 and 700 °C and pressures of 5 to 500 atm were studied by means of the transfer method. The results were evaluated by a new method. In the system Sio 2 /H 2 O the formation of gaseous Si(OH) 4 , Si 2 O(OH) 6 , and [SiO…
Abstract The increase in resistivity of Cu single crystals oriented near 〈110〉 and 〈111〉 is measured as a function of integrated electron flux at various electron energies below 1 MeV. Specially prepared thin single crystals of about 0.1 mm thickness are used. It is found that the damage production curves thus obtaine…
Four phases named S1, S2, S3 and S4 in tridymite of type S were confirmed on the close examination of the change of X-ray powder reflections with increasing temperatures.Unit cell dimensions are: S1; monoclinic, a=10.04Å, b=17.28Å, c=8.20Å, β=91.50°, S2; orthorhombic, a=10.04Å, b=17.28Å, c=8.20Å, S3; domain structure,…
ADVERTISEMENT RETURN TO ISSUEPREVarticleNEXTMelting and Pre-Melting Phenomena in Alkali Metal Nitrates.G. J. Janz, F. J. Kelly, and J. L. PeranoCite this: J. Chem. Eng. Data 1964, 9, 1, 133–136Publication Date (Print):January 1, 1964Publication History Published online1 January 1964Published inissue 1 January 1964http…
J. C. Barnes, J. Chem. Soc., 1964, 3880 DOI: 10.1039/JR9640003880
SummaryIn general, Keller, Hunter and Robinson's theory will explain the reactions taking place during the anodic oxidation of aluminium and many of the properties of the coatings. However, there are instances where observations do not agree with this theory. For example, when aluminium is anodized under special condi…
Data on the fluorescence spectra, fluorescence lifetimes, and the temperature dependence of these quantities for the dibenzoylmethane chelates of europium and of terbium in a variety of environments are presented. The effect of the environments studied on the europium chelate is much more pronounced than on the terbiu…
A. J. Mckinnon, T. N. Waters and D. Hall, J. Chem. Soc., 1964, 3290 DOI: 10.1039/JR9640003290
The anodic oxidation of formic acid has been investigated on platinum black electrodes in 5 N sulfuric acid. The data presented pertain to the activation controlled process under approximately steady state conditions at four temperatures between 25° and 90 °C. Tafel plots appear to have significant slopes, and the cor…
Solutions in closed form are presented for the polarization behavior and the distribution of current and potential in idealized, one‐dimensional porous electrodes in the case of a simple oxidation‐reduction reaction under pure activation control. Exact solutions are derived for transfer coefficients of 1/3, 1/2, and 2…
This book is intended as a laboratory reference tool. The separate book chapters have been written by workers in the various fields covered, with a couple written by the contributing editor, Clement J. Rodden. The chapters were abstracted separately for the database.