Materials Literature
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The degree of preferred orientation (texture) of doctor‐bladed polycrystalline 99.5% Al 2 O 3 substrates from 3 sources was evaluated by qualitative optical and quantitative X‐ray analyses. The substrates exhibit a fiber texture in which the basal planes lie preferentially in the plane of the substrate. The same textu…
The exceptionally strong Kerr effect of some nematogenic compounds with strong electric dipole moments parallel to their long molecular axes was investigated. The Kerr constants just above the clearing point T cl were about 100 times larger than with nitrobenzene. The temperature dependence of the Kerr effect obeyed (…
Electrical conduction in amorphous As 2 Se 3 is investigated at frequencies from 30 Hz to 10.3 GHz in the temperature range -180° to 500°C. The observed conductivity σ can be expressed as a sum of dc conductivity σ dc and ac conductivity σ ac , namely σ=σ dc +σ ac . The quantity σ dc depends exponentially on reciproca…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Silver-Catalyzed Ethylene OxidationP. L. Metcalf and P. HarriottCite this: Ind. Eng. Chem. Process Des. Dev. 1972, 11, 4, 478–484Publication Date (Print):October 1, 1972Publication History Published online1 May 2002Published inissue 1 October 1972https://pubs.acs…
Data are presented for the ${\mathrm{Te}}^{125}$ Knight shift (${\mathcal{K}}^{125}$) and spin-lattice relaxation rate ($\frac{1}{{T}_{1}}$) over the temperature ranges 675-1250 K and 680-900 K, respectively, in liquid tellurium. The temperature dependence of ${\mathcal{K}}^{125}$ is compared with that of the total ma…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
The characteristics of terbium-activated gadolinium oxysulfide and lanthanum oxysulfide are compared with those of calcium tungstate. The new rare-earth phosphors have higher x-ray absorption in the 38 to 70 keV region relative to calcium tungstate. They also exhibit a larger x-ray-to-visible light energy conversion e…
Abstract Oxidation of octahedral ferrous iron in biotite by saturated bromine water results in a loss of both octahedral and interlayer cations. The hydroxyl adjacent to vacant octahedral cation sites adopt an inclined orientation resulting in a more stable environment for interlayer cations. The only structural chang…
The electronic coupling in the $4{f}^{6}5d$ configuration of ${\mathrm{Eu}}^{2+}$ in crystals has been studied. The complete $f\ensuremath{-}d$ Coulomb matrix within ${f}^{6}(^{7}F_{J})^{2}e_{g}$ has been obtained and the Hamiltonian diagonalized for various values of the spin-orbit and Coulomb parameters. The magneto…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal and molecular structure of trinitratobis(bipyridyl)lanthanum(III)A. R. Al-Karaghouli and J. S. WoodCite this: Inorg. Chem. 1972, 11, 10, 2293–2299Publication Date (Print):October 1, 1972Publication History Published online1 May 2002Published inissue 1 October 1972htt…
Abstract Conditions have been found for the etching of poly(ethylene terephthalate) with water so that the crystalline portions alone remain. Initial sample and hydrolysis products are analyzed by extraction of low molecular weight products; density, viscosity molecular weight, and endgroup determination; heating‐rate…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFacile promotion of oxidative dehydrogenation by iron ions and the synthesis of new complexes of iron with highly unsaturated tetraaza macrocyclesVirgil L. Goedken and Daryle H. BuschCite this: J. Am. Chem. Soc. 1972, 94, 21, 7355–7363Publication Date (Print):October 1, 1972…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLead orthophosphates. I. Solubility and hydrolysis of secondary lead orthophosphateJerome O. NriaguCite this: Inorg. Chem. 1972, 11, 10, 2499–2503Publication Date (Print):October 1, 1972Publication History Published online1 May 2002Published inissue 1 October 1972https://pub…
The Auger recombination lifetimes of the excess carriers in p-type InAs, GaSb, InP, and GaAs are calculated. The calculation is carried out along the line of Beatie and Smith taking into account spin split-off band effect. It is concluded that the spin split-off band effect plays a very important role on the Auger rec…
Abstract. (1) Sterile filtration of whole blood or blood cell suspensions in saline through columns of tightly packed cotton wool results in removal of over 95% of the leukocytes. (2) From whole blood, thrombocytes are inefficiently removed by the filtration procedure; filtration of blood cell suspensions in saline re…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEmpirical evaluation of the individual elements in the nuclear diamagnetic shielding tensor by the atom dipole methodT. D. Gierke and W. H. FlygareCite this: J. Am. Chem. Soc. 1972, 94, 21, 7277–7283Publication Date (Print):October 1, 1972Publication History Published online…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolubilities of n-pentane and 1,3-butadiene in liquid nitrogenG. T. Preston and J. M. PrausnitzCite this: J. Chem. Eng. Data 1972, 17, 4, 465Publication Date (Print):October 1, 1972Publication History Published online1 May 2002Published inissue 1 October 1972https://pubs.acs…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
The NMR spectra of PTFE irradiated at various temperatures with a dose of 1.1×10 7 R and irradiated at 340°C with various doses were measured over the temperature range from -50°C to 50°C. In the case of PTFE irradiated with 1.1×10 7 R, the percent crystallinity estimated from NMR spectra increased with increasing irr…
The effect of elastic anisotropy on the modes of plastic deformation of white tin is studied. The shear modulus for [Formula: see text] slip decreases markedly with temperature, and this is reflected in calculations of the ideal strength, dislocation strain energy, and lattice friction stress. Predictions of relative…