Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparative kinetics of high-temperature reaction between hydrogen sulfide and selected metal oxidesPhillip R. Westmoreland, James B. Gibson, and Douglas P. HarrisonCite this: Environ. Sci. Technol. 1977, 11, 5, 488–491Publication Date (Print):May 1, 1977Publication History…
High-voltage breakdown measurements were made in two similar particle contaminated coaxial test systems, one with AC and the other with DC voltages. Information is presented on the effects of particle size, shape, and material for both SF6and N2gases at pressures up to 15 atm in a plain coaxial gap and a coaxial gap i…
The proton NMR spectra of unligated ferrous porphyrins, proposed to exist in the intermediate S = 1 spin state, have been recorded and analyzed. The dominant dipolar shifts for the phenyl protons in tetraphenylporphinatoiron(II) result in a quantitative measure of the axial magnetic anisotropy, which, together with th…
The structure of a suspension of highly charged macromolecules indicates both solidlike and liquidlike phases separated by a distinct melting point. Here the structure factor of the liquidlike phase measured by optical techniques is analyzed using methods previously developed for simple fluids. The hypernetted-chain a…
Analytical models are presented describing the x-ray-excited emission of ’’no-loss’’ photoelectrons and Auger electrons and the energy distribution of emitted secondary electrons. The secondary electron energy distribution is given in terms of the electron kinetic energy EK, work function W, photon energy Eo, and mass…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange interactions in transition metal dimers. 10. Structural and magnetic characterization of oxalate-bridged, bis(1,1,4,7,7-pentaethyldiethylene triamine)oxalatodicopper tetraphenylborate and related dimers. Effects of nonbridging ligands and counterions on exc…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMonomer Sequence Distribution in Ethylene-Propylene Rubber Measured by 13C NMR. 3. Use of Reaction Probability ModelC. J. Carman, R. A. Harrington, and C. E. WilkesCite this: Macromolecules 1977, 10, 3, 536–544Publication Date (Print):May 1, 1977Publication History Published…
Composite powders were hot‐pressed to determine the phase relations in the Si 3 N 4 ‐SiO 2 ‐Y 2 O 3 pseudoternary system. Four quaternary compounds, Si 3 Y 2 O 3 N 4 , YSiO 2 N, Y 10 Si 7 O 23 N 4 , and Y 4 Si 2 O 7 N 2 , were identified. Studies of polyphase and single‐phase materials in this system showed that these…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLCST Behavior in Polymer BlendsR. E. Bernstein, C. A. Cruz, D. R. Paul, and J. W. BarlowCite this: Macromolecules 1977, 10, 3, 681–686Publication Date (Print):May 1, 1977Publication History Published online1 May 2002Published inissue 1 May 1977https://doi.org/10.1021/ma60057…
The theory of spin relaxation for liquid crystals is examined with the objective of properly analyzing the statistical interdependence of the faster rotational reorientation of the individual spin-bearing molecules and the (slower) director or order-parameter fluctuations. The analysis is presented in terms of a compo…
(1977). Some Bending Measurements on Yarns. The Journal of The Textile Institute: Vol. 68, No. 5, pp. 188-189.
On the basis of elastic waves released by imploding cavitation bubbles, a mechanism for biological cell disintegration in high intensity ultrasound has been proposed. Comparison of this mechanism with the published results on yeast cells shows many points of agreement suggesting that yeast cell disintegration in ultra…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSeparation and PurificationCite this: Anal. Chem. 1977, 49, 6, 499APublication Date (Print):May 1, 1977Publication History Published online24 May 2012Published inissue 1 May 1977https://doi.org/10.1021/ac50014a729RIGHTS & PERMISSIONSArticle Views47Altmetric-Citations-LEARN A…
A detailed analysis is given for three techniques used to determine the tilt bias angle of a nematic liquid crystal in contact with a boundary surface. Two of these methods, the crystal rotation and capacitive methods, have severe disadvantages, such as a restricted range of application, an insufficient accuracy, and…
The optical absorption of amorphous electrochromic display layers is explained as small polaron absorption. The necessary W 5+ 5d‐electron localization is favored by the lattice disorder. This is concluded from the change of the optical properties to free‐electron‐like behavior upon crystallization of the layers. The…
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The solution of Poisson's equation is an essential step in the formulation of self-consistent calculations. An efficient method of solution is presented for a system of arbitrary geometry. The charge density and potential within a cell of arbitrary shape are expanded in spherical harmonic series. A truncation function…
The complete Raman spectra of single-crystal synthetic zircon and thorite are reported for the first time. Results are presented for thorite at 295K and zircon at 295 and 90K. The temperature-dependent study was essential for distinguishing between weak first-order bands and second-order features which can have narrow…
The problem of the collapse of a vapour/gas bubble attached to a solid wall and initially perturbed from a hemispherical shape is solved numerically by the variational method, in which the bubble's viscosity and compressibility in liquid are neglected. The effects of surface tension on the collapsing bubble are taken…