Rigid, laterally-bridged bis-porphyrin system
The synthesis of novel bis-porphyrin systems in which the porphyrins are rigidly constrained in a coplanar arrangement is reported.
Materials Literature
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Optical characterisation of gold using surface plasmon-polaritons
Measurements are presented of the optical constants of a thin gold film over primarily the visible region of the spectrum using the surface plasmon-polariton resonance condition in the attenuated total-reflection configuration. Using this technique precise results are obtained and these are compared with those found u…
I. Energy calculations for pure metals
The energies of voids, stacking-fault tetrahedra and vacancy loops in gold, silver, aluminium, copper, nickel, stainless steel, α-iron and molybdenum have been reexamined as a function of cluster size using established elastic continuum expressions. Stacking-fault tetrahedra and vacancy loops are the most stable small…
Properties and structure of lithium germanate glasses
On etudie des systemes contenant de 0 a 30% de lithium. On mesure la densite, l'indice de refraction, le coefficient de dilatation thermique, la temperature de transition vitreuse, la temperature de cristallisation et la conductivite electrique
A Review of Corrosion Failure Mechanisms during Accelerated Tests: Electrolytic Metal Migration
This paper presents an extensive literature review and assessment of corrosion failure mechanisms encountered during accelerated tests of microelectronic devices. The failure mechanism of primary emphasis is electrolytic metal migration. The metallurgies of interest are silver, gold, copper, and aluminum. Electrochemi…
On the ability of drops to stick to surfaces of solids. Part 3. The influences of the motion of the surrounding fluid on dislodging drops
The ability of a drop to stick to a solid surface is investigated when the surrounding fluid is in motion. The specific problem analysed consists of a small drop on a planar surface immersed in a second immiscible fluid which is flowing parallel to the solid surface at a constant rate of strain. An expression is obtai…
Aluminum Titanate Formation by Solid‐State Reaction of Fine Al 2 O 3 and TiO 2 Powders
The formation of Al 2 TiO 5 has been studied in equimolar Al 2 O 3 ‐TiO 2 powder mixtures of ∼1μm particle sizes and moderate purity (∼99.8 wt%) at temperatures around 1300°C, where the free energy of formation is very small. Micro‐structural development and reaction kinetics indicate that different mechanisms operate…
Microstructural evolution in annealed austenitic steels during neutron irradiation
The literature which describes the microstructural development during neutron irradiation of austenitic stainless steels is reviewed, with emphasis on solution annealed AISI 316 stainless steel. The main difference in primary damage caused by fission and fusion neutron irradiation is the considerably larger amounts of…
Effect of Heat Treatment after Cold Working on the Phase Transformation in TiNi Alloy
The effect of heat treatment in the range 633 K–933 K on the phase transformations among three types of phases, i.e. the CsCl (B2)-, rhombohedral (R)- and monoclinic (M)-phases in Ti-49.7, 50.2 and 50.6 at%Ni alloys have been investigated using the differential scanning calorimetry (DSC) method. It has been confirmed…
Characterization and properties of polyethylene blends I. Linear low‐density polyethylene with high‐density polyethylene
Abstract A blend system of linear low‐density polyethylene (LLDPE) (ethylene butene‐1 copolymer) with high‐density (linear) polyethylene (HDPE) is investigated by differential scanning calorimetry (DSC), wide‐angle x‐ray diffraction (WAXD), small‐angle x‐ray scattering (SAXS), Raman longitudinal‐acoustic‐mode spectros…
Superconductivity and metal-semiconductor transition in BaPb1-xBixO3
The perovskite solid solutions BaPb1-xBixO3 exhibit unique properties in both metallic and semiconducting phases. In the metallic phase (0 ≤ x ≤ 0.35) they are superconducting with high transition temperatures. It turns out that the high T c originates from extremely strong electron-phonon interaction. At the metal-se…
The Thermochemical Measurements on Rubidium Compounds: A Comparison of Measured Values with Those Predicted from the NBS Tables of Chemical and Thermodynamic Properties
This report presents the assessed thermochemical measurements on rubidium compounds upon which the property values, Δf H0, Δf G0, S0, C0p, and H0(T)−H0(0) at 298.15 K and Δf H0(0 K) recommended in the ‘‘NBS Tables of Chemical Thermodynamic Properties’’ are based. Included in this set of thermochemical measurements, or…
Nomenclature of tetrapyrroles (Recommendations 1986)
Abstract
Kinetics of Uptake, Retention, and Radiotoxicity of 125 IUdR in Mammalian Cells: Implications of Localized Energy Deposition by Auger Processes
The kinetics of uptake, retention, and radiotoxicity of 125IUdR have been studied in proliferating mammalian cells in culture. The radioactivity incorporated into the DNA is directly proportional to the duration of incubation and to the extracellular concentration of 125I. The rate of proliferation of cells is related…
X-Ray photoemission study of plasma modified polyethylene surfaces
X-Ray photoelectron spectroscopy (XPS) was used to determine plasma induced chemical species on the surface of polyethylene (PE). Argon plasmas were found to have no detectable chemical effect on the PE surface, whereas oxygen and nitrogen plasmas created new chemical species which altered the chemical reactivity of t…
The effect of polydispersity on the crystallization of hard spherical colloids
To crystallize, spherical colloidal particles must not have too broad a spread of size (or polydispersity). Here it is pointed out that the findings of recent calculations and computer simulations concerning the effects of polydispersity on the crystallization of hard spherical particles are simplified considerably if…
Interactions of hydrogen and deuterium with silica optical fibers: A review
This paper reviews all the interactions of hydrogen and deuterium with silica-based optical fibers. Included in the discussion are H2overtone absorption, OH formation, increased UV and IR absorption, radiation effects on H2-treated fibers, the gas-in-glass laser and applications, the reduction of OH absorption by isot…
Diffusion induced grain boundary migration
Diffusion induced grain boundary migration (DIGM) is a phenomenon in which the sideways migration of grain boundaries accompanies the diffusion of solute along them. This results in the deposition of solute in, or its removal from, the matrix through which the boundaries sweep. In this review, the detailed phenomenolo…
Sonochemistry. Part2—Synthetic applications
The first page of this article is displayed as the abstract.
Influence of oxidation and protonation on the electrical conductivity of polyaniline
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of oxidation and protonation on the electrical conductivity of polyanilinePeter M. McManus, Richard J. Cushman, and Sze Cheng. YangCite this: J. Phys. Chem. 1987, 91, 3, 744–747Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Pu…