Materials Literature
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Coefficients of linear thermal expansion are reported, in the range 60 K to room temperature, for eight optical materials: Polytran potassium chloride and Polytran calcium fluoride-Harshaw; chemical-vapor-deposited (CVD) zinc sulfide and zinc selenide-Raytheon; germanium (single-crystal and polycrystal); crystalline m…
Raman scattering in single crystals of ${\mathrm{V}}_{2}$${\mathrm{O}}_{3}$ has been studied in the range from \ensuremath{\sim}20 K to room temperature. Metal to insulator, crystallographic, and antiferromagnetic-ordering transitions take place concurrently at ${T}_{t}\ensuremath{\sim}150$ K. The observed spectra sho…
Charge transfer between two insulators, or between a metal and an insulator, is not influenced by previous identical contacts. Since it has recently been shown that material transfer occurs to a large extent on the first contact and to a much smaller extent on subsequent contacts, it can be concluded that material tra…
Abstract A mixing‐reaction model (MIRE) is used to develop criteria, readily accessible by experiment, which permit the chemist to decide whether and when mixing effects influence the product distribution in competitive consecutive or parallel reactions. The validity of these criteria is demonstrated by comparison of…
Radial expansion and subsequent fracture into segments of thin-walled cylindrical shells at large initial strain rates are studied analytically and experimentally. The theory of probability along with a description of relief wave propagation away from each fracture is used to formulate a theory which predicts the numb…
This book is intended to be both an advanced basic text and a state-of-the-art compendium on both clinical and research aspects of electrocochleography. It meets these aims of the editors very well indeed, except where a two-year delay in publication prevents a complete update. The collection of papers and discussions…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCloso boron hydrides with 13 to 24 boron atomsLeo D. Brown and William N. LipscombCite this: Inorg. Chem. 1977, 16, 12, 2989–2996Publication Date (Print):December 1, 1977Publication History Published online1 May 2002Published inissue 1 December 1977https://pubs.acs.org/doi/1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHomogeneous nucleation and glass formation in aqueous alkali halide solutions at high pressuresH. Kanno and C. A. AngellCite this: J. Phys. Chem. 1977, 81, 26, 2639–2643Publication Date (Print):December 1, 1977Publication History Published online1 May 2002Published inissue 1…
Abstract Polarisationsversuche an rotierenden Scheibenelektroden zeigten daß die Korrosion von unlegiertem Stahl (Werkstoff Nr. 1.1623) in sauerstoffreien Kohlensäurelosungen nicht durch Transportvorgänge, sondern durch kathodische Aktivierungspolarisation kontrolliert wird. Die gegenüber verdünnten Mineralsäuren glei…
Summary Kerolites from Goles Mountain (Yugoslavia), Wiry (Poland), Madison Co. (North Carolina), and Kremze (Czechoslovakia) are compared with talc and stevensite. Chemical analyses give a composition for kerolite near R 3 Si 4 O 10 (OH) 2 . n H 2 O with R mainly Mg and n about 0·8–1·2. Infra-red data and dehydration-…
Abstract The transport coefficients of macromolecular solutes are normally extrapolated to “infinite dilution” to remove the effects of concentration‐dependence terms, for which no satisfactory general treatment has been available. It is shown that a simple general treatment for the concentration‐dependence effect can…
The electrical and optical properties of rf-sputtered Sn-doped In2O3 (ITO) films have been found to depend strongly on the O2 partial pressure during deposition. For the sputtering conditions used, films with both low electrical resistivity (ρ ∼ 3 × 10−4 Ω cm) and high visible transmission (∼ 90%) were obtained only o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBiodegradable Films from Starch and Ethylene-Acrylic Acid CopolymerFelix H. Otey, Richard P. Westhoff, and Charles R. RussellCite this: Ind. Eng. Chem. Prod. Res. Dev. 1977, 16, 4, 305–308Publication Date (Print):December 1, 1977Publication History Published online1 May 2002…
Chemical, optical and infrared absorption, Mössbauer and X-ray data are reported for eight cordierite samples. Fe^(2+) in the octahedral and channel sites is identified in optical and Mössbauer spectra, which indicate that generally less than 5 percent of the total iron is Fe^(2+) in the channels. The single-crystal M…
A short description is given of the determination–as a function of frequency and temperature–of secondary mechanical loss peaks in glassy amorphous polymers. The molecular motions causing secondary loss peaks are classified. The dependence on frequency of the temperature of the maximum of the loss peak is discussed. T…
J. D. Goss-Custard, The Ecology of the Wash. III. Density-Related Behaviour and the Possible Effects of a Loss of Feeding Grounds on Wading Birds (Charadrii), Journal of Applied Ecology, Vol. 14, No. 3 (Dec., 1977), pp. 721-739
The incommensurate (I) states of the triple charge density waves (CDW) in 1T-TaS 2 are studied in details by taking into account a sufficiently large number of harmonics. A domain-like structure of the I-CDW state is shown to be realized as the fundamental wave vector of the I state approaches to the commensurate (“3×…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA numerical model of chemical kinetics of combustion in a turbulent flow reactorC. K. Westbrook, J. Creighton, C. Lund, and F. L. DryerCite this: J. Phys. Chem. 1977, 81, 25, 2542–2554Publication Date (Print):December 1, 1977Publication History Published online1 May 2002Publ…
Abstract Increased insight into the mechanism of carbocationic copolymerization has been achieved by classifying and reviewing in detail 334 monomer pairs in terms of the extended Kelen‐Tüdös method. The reactivity ratios ( r values) of essentially all published olefin–olefin, olefin–vinyl ether, vinyl ether‐vinyl eth…
Abstract Interaction between a collapsing bubble and a free surface is investigated theoretically and experimentally using high speed photography. A limit value for the distance from the free surface to the center of the bubble reported to its radius is found. Under this limit the free surface is not disturbed before…