Materials Literature
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It has previously been shown that the ordinary liquid–glass transition is just one example of a class of “glass transitions” due to loss of equilibrium which may occur widely in metastable phases of condensed matter. In the present paper, glass-transition phenomena occurring in stable crystalline phases of SnCl2.2H2O,…
An analysis is given of the possible advantages of a photoelectron spectrometer based upon the properties of the axially symmetric inhomogeneous magnetic field of a superconducting solenoid. The consequences of electron motion along the solenoid axis are discussed and it is shown that this can lead to a novel high-res…
We present preliminary measurements of the electrical conductivity of a composite made of small conducting rods in an insulating matrix. It constitutes a model material for studying the effect of anisotropy on percolation as a function of particle length to diameter ratio. We can interpret our results, especially the…
ABSTRACT THIN-LAYER drying and rewetting data for shelled yellow corn have been compiled from all available sources. A thin-layer drying equation was developed us-ing these data with air temperature, air humidity, air velocity and corn initial moisture content as the indepen-dent variables. A thin-layer rewetting equa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIron-nitrogen bond lengths in low-spin and high-spin iron(II) complexes with poly(pyrazolyl)borate ligandsJ. D. Oliver, D. F. Mullica, B. B. Hutchinson, and W. O. MilliganCite this: Inorg. Chem. 1980, 19, 1, 165–169Publication Date (Print):January 1, 1980Publication History…
Abstract Solution and solid‐state thermal cis‐trans isomerization of cis–transoidal polyphenylacetylene was investigated. At temperatures higher than 120°C, cis‐trans thermal isomerization in solution is accompanied by cyclization, aromatization, and scission of the polymer chain. Both spectral and kinetics data showe…
The continuous stretching of viscous liqu ids to form fibers is a primary manufacturing process in the textile industry. The mechanics of certain sheet formation and sheet and wire coating operations are quite similar, as are the mechanics of the formation of glass fibers. Most published experimental and theoretical w…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDynamics of boron acid complexation reactions. Formation of 1:1 boron acid-ligand complexesLucia Babcock and Richard PizerCite this: Inorg. Chem. 1980, 19, 1, 56–61Publication Date (Print):January 1, 1980Publication History Published online1 May 2002Published inissue 1 Janua…
The tensile and Izod impact strength of polycarbonate (PC) based polyethylene (PE) and polystyrene (PS) blends has been examined. The tensile strength can best be described as being proportional to an exponential function of the volume fraction of PE and the first power of volume fraction of PS. The variation of Izod…
La takovite, un des membres du groupe des pyroaurites qui contient du nickel a été, ainsi que son minéral apparenté l'hydrotalcite, soumise à des traitements, à 25 °C, par des solutions, 0,1 M de HCl, HNO₃, H₂SO₄, NiSO₄, Al₂(SO₄)₃ et KOH. La diffraction des rayons X et la spectroscopie aux infrarouges appliquées aux m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-State Transition of Poly(butylene terephthalate) Induced by Mechanical DeformationKohji Tashiro, Yuzo Nakai, Masamichi Kobayashi, and Hiroyuki TadokoroCite this: Macromolecules 1980, 13, 1, 137–145Publication Date (Print):January 1, 1980Publication History Published on…
Michiyoshi TANAKA, Ryuichi SAITO, Katsuyoshi UENO, Yoshiyasu HARADA; Large-Angle Convergent-Beam Electron Diffraction, Journal of Electron Microscopy, Volu
Raman data have been obtained for vitreous and molten B2O3 from −196 to 1594 °C. A ΔH° of 6.4±0.4 kcal/mole boroxol was obtained from the temperature dependence of ratios of integrated Raman intensities. This heat is thought to correspond to the transformation of BO3 triangles in boroxol rings, to BO3 triangles in a r…
The electrostrictive strains induced by high electric fields have been measured for compositions in the solid solution system Pb(Mg1/3Nb2/3)O3: PbTiO3 (PMN:PT) containing up to 20 mole% PT. Large anhysteretic quadratic strains (up to 1,000 × 10−6) can be induced at room temperature with no evidence of remanence. In pu…
Calcite precipitation occurs when trimethylamino‐N‐oxide and medium are added to surface waters collected above Lodestone and Keeper Reefs of the Great Barrier Reef. The calcium content of the water was initially 430 ppm. After 30 days incubation at 28 °C, the pH had risen and only 90 ppm of calcium remained in soluti…
Cavity (void) formation and swelling in non-fissile materials during neutron irradiation and charged particle bombardments are reviewed. Helium is the most important inert gas and is primarily active as a cavity nucleant. It also enhances formation of dislocation structure. Preimplantation of helium overstimulates cav…
Abstract
The ferroelectric properties of (Na0,5Bi0,5TiO3) single crystals are studied. It is found that some physical characteristics possess a large temperature hysteresis in the temperature range 200 – 300°C. The nature of that hysteresis is discussed.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProperties of Segmented Polyether Poly(urethaneureas) Based of 2,4-Toluene Diisocyanate. 2. Infrared and Mechanical StudiesC. S. Paik Sung, T. W. Smith, and N. H. SungCite this: Macromolecules 1980, 13, 1, 117–121Publication Date (Print):January 1, 1980Publication History Pu…
The phase diagram of the Bi2O3-Er2O3 system was investigated. A monophasic f c c structure was stabilized for samples containing 17.5–45.5 mol% Er2O3. Above and below this concentration range polyphasic regions appear. The f c c phase showed high oxygen ion conduction. The ionic transference number is equal to one for…