Materials Literature
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The effects of potential and p H on the rate of the hydrogen evolution reaction on zone‐refined titanium have been determined in acidic sulfate and chloride media over the p H range of 0 to 4.0. In all cases, the cathodic Tafel slope is equal to −120 m.V, i.e. , ( ∂ E / ∂ log | i H , ∝ | ) pH = − 2 ( 2.303 RT / F ) .…
Abstract The response of glass‐forming systems to isobaric three‐step thermal cycles involving cooling, isothermal annealing, and subsequent reheating has been investigated comprehensively using numerous combinations of the experimental and material parameters. The latter include the retardation spectrum or response f…
The results of optical rotatory dispersion (ORD) measurements in the third cholesteric blue phase (BP III) are reported for both pure compounds and mixtures. The spectra possess weak, broad, anomalous regions at short wavelength, the sign and wavelength dependence of which follows the sense and pitch of the cholesteri…
Data are presented on the electronic conductivity and molten alkali carbonate stability (Li:K binary of 62:38 mole ratio) of various materials at 923 K under a 30% atmosphere. Of the examined materials, only and satisfied both criteria sufficiently for acceptable use as molten carbonate fuel cell cathode materials.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComposition dependence of bremsstrahlung background in electron-probe x-ray microanalysisAndrzej A. Markowicz and Rene E. Van GriekenCite this: Anal. Chem. 1984, 56, 12, 2049–2051Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of measurement error variances from process dataGedeon A. Almasy and Richard S. H. MahCite this: Ind. Eng. Chem. Process Des. Dev. 1984, 23, 4, 779–784Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 October…
Tension-torsion tests with a computer controlled servohydraulic testing machine are reported. Yield surfaces were obtained during a load controlled path, which includes combined stress creep, as well as during a strain controlled path, which includes combined stress relaxation. These surfaces and their relation to the…
The optical and near infrared absorption of dilute Tm3+ and Yb3+ impurities in YPO4 and LuPO4 single crystals have been measured at liquid helium and nitrogen temperatures. For Tm3+, the spectral region from 5 000 to 38 000 cm−1 was examined and Zeeman spectra were obtained in the visible region. The observed transiti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent effects in polyelectrolyte solutions. 1. Potentiometric and viscosimetric titration of poly(acrylic acid) in methanol and counterion specificityNicolaas T. M. Klooster, Frans Van der Touw, and Michel MandelCite this: Macromolecules 1984, 17, 10, 2070–2078Publication…
The stationary state of a phenomenological model of two-dimensional nucleation-controlled crystal growth is found, using an operator formalism akin to quantum field theory, and the implications for the growth of polymer crystals are briefly discussed. The method also enables a correspondence to be drawn between this p…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControl of spin state in (porphinato)iron(III) complexes. An axial ligand orientation effect on the spin state in bis(2-methylimidazole)(octaethylporphinato)iron(III) perchlorateDavid K. Geiger, Young Ja Lee, and W. Robert ScheidtCite this: J. Am. Chem. Soc. 1984, 106, 21, 6…
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
X-ray absorption spectra about the K edges of Ni, Cu and Ti have been measured at the Stanford Synchrotron Radiation Laboratory. The imaginary part of the atomic scattering factor f ′′ was determined using the optical theorem and the real part f ′ computed by the Kramers–Kronig dispersion relation. Methods for evaluat…
Abstract The ASTM E‐42 committee round robin on XPS measurements found, in a simple survey, that the intensity‐energy response of electron spectrometers was unacceptably unreliable. In this paper new, high accuracy, reference procedures are developed to define the relative intensity‐energy response function of spectro…
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
Abstract Change in yield and deformation associated with physical aging was studied on a series of polycarbonates (bisphenol‐A polycarbonate, polyestercarbonates, and phenolphthalein‐bisphenol‐A copolycarbonates) and a polysulfone. A combination of tensile and biaxial yield measurements, dynamical mechanical analysis,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and DNA binding and photonicking properties of acridine orange linked by a polymethylene tether to (1,2-diaminoethane)dichloroplatinum(II)Bruce E. Bowler, L. Steven Hollis, and Stephen J. LippardCite this: J. Am. Chem. Soc. 1984, 106, 20, 6102–6104Publication Date…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPyridinium molybdates. Synthesis and structure of an octamolybdate containing coordinately bound pyridine: [(C5H5N)2Mo8O26]4-E. M. McCarron III, J. F. Whitney, and D. B. ChaseCite this: Inorg. Chem. 1984, 23, 21, 3275–3280Publication Date (Print):October 1, 1984Publication H…
Abstract Cylindrical specimens of poly(methyl methacrylate) ( PMMA ) were quenched from above the glass transition and subsequently tested in torsion. Torque and normal‐force relaxation responses were recorded simultaneously. The experiments were performed at 40, 60, and 80°C, at increasing aging times and at deformat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface-enhanced Raman scattering from copper and zinc phthalocyanine complexes by silver and indium island filmsCarol. Jennings, Ricardo. Aroca, Ah Mee. Hor, and Rafik O. LoutfyCite this: Anal. Chem. 1984, 56, 12, 2033–2035Publication Date (Print):October 1, 1984Publication…