Materials Literature
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We present ab initio investigations of the formation of magnetic moments in crystalline, quasicrystalline, and liquid Al-Mn alloys. We find that the appearance of local moments on the Mn sites is controlled by a local Stoner criterion. In the stable crystalline compound ${\mathrm{Al}}_{6}\mathrm{Mn}$ strong $\mathrm{A…
Polychlorinated biphenyls (PCBs) are ubiquitous global contaminants that have been intensively investigated for three decades.They are broad-acting toxicants occurring in complex mixtures and accurate risk assessment has proven to be elusive.Focusing on a limited set of end points and emphasizing a fixed set of congen…
The present review discusses some current issues related to the principles and analytical aspects of electrochemical studies (typically done at room temperature) of solid, rigid or semirigid (nonfluid) systems in the absence of a liquid solution phase. Representative examples include redox and conducting organic polym…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionHomogeneous-Phase Electron-Transfer Reactions of Polyoxometalates. [(Chem. Rev.1998, 98, 113 (this issue). Published on the Web January 22, 1998.]I. A. WeinstockCite this: Chem. Rev. 1998, 98, 1, 389–390Publication Date (Web):February 5, 1998Publication History Publi…
The phase behavior of binary blends of A homopolymer and symmetric AB diblock copolymer is studied within mean-field theory. The occurrence of lamellar, hexagonal, and body-centered-cubic phases is examined in the weak to intermediate segregation regime and over a wide range of homopolymer length relative to that of t…
We found that the frustration, i.e., unusual density modulation, is induced on ferroelectric SmA b and HexB b phases composed of achiral banana-shaped molecules. The frustration takes place along the bent direction of molecules, with four or five molecules included in each inversion unit. Such an unusual frustrated st…
The earliest concept of spunlacing (also known as hydroentanglement): using water jets to entangle fibres to form non-woven fabrics, was conceived as early as 1950s. Like other nonwoven fabrics, spunlaced non-woven fabrics are not made of yams, but directly from fibers or filaments which are laid by web forming machin…
Experiments on a pilot-scale 150-litre forced circulation crystallizer with external circulation flow rates of 2 and 3 l/s revealed a high sensitivity of the product crystal size distribution for this operational variable. It is believed that a change in the circulation flow rate influences (1) the nucleation rate, wh…
Thin superconducting films attract great attention as a promising material for plenty of applications. The surface determines most of the physical properties of these films. We studied the polarization effect for the [001] surface of perovskite ABO 3 superconducting crystals on the example of SrTiO 3 . Optimization of…
A new recycling technique has been developed which uses a natural solvent, d limonene, to shrink expanded polystyrene (EPS). d-Limonene is a natural vegetable oil which is extracted from the rinds of citrus fruits and is a good solvent of EPS. Limonene has almost the same solubility as toluene at room temperature. Thi…
Sensitization of type 347 (UNS S34700) austenitic stainless steel (SS) samples removed from forged bars was investigated using the electrochemical potentiokinetic reactivation (EPR) method and the weight-loss technique of ASTM A 262, Practice B. A normal and a low-carbon steel were investigated. After solution-anneali…
Herein we present preliminary results of a study of the distribution and chemical composition of clay minerals in rocks recovered from the Trans-Atlantic Geotraverse (TAG) hydrothermal mound. This study is part of Leg 158 of the Ocean Drilling Program, an effort to evaluate the subsurface secondary mineral distributio…
In this paper, we investigate fiber diameter and strength distributions in early-stage processing. We have processed two lots of merino wool from scouring to top finishing. Fiber samples collected at each processing stage are measured for diameter on an optical fiber diameter analyzer, and fiber strength is measured o…
The present paper deals with the texture, deformation mechanisms and mechanical properties of α and near α alloys (i.e. with hexagonal symmetry matrix). For items related aspects are reviewed: 1) texture formation during thermomechanical treatments depending on the composition of the alloys 2) determination of active…
Abstract A C -centered monoclinic phase isotypic with Al 13 Os 4 and structurally related to it body-centered orthorhombic phase were found in the Al 13 Co 4 alloy annealed at 1373 K and subsequently quenched. The new orthorhombic phase exhibits the lattice parameters of a = 1.531 nm, b = 1.235 nm and c = 0.758 nm. Th…
The use of microelectrodes in biofilm research allows a better understanding of intrinsic biofilm processes. Little is known about mass transfer and substrate utilization in the boundary layer of biofilm systems. One possible description of mass transfer can be obtained by mass transfer coefficients, both on the basis…
Tetrasulfonated cobalt and nickel phthalocyanines (CoPcTs and NiPcTs, respectively) intercalated in layered double hydroxide (LDH) were studied by Raman microscopy. In the case of the cobalt complex the investigation included the supported sample in which the phthalocyanine is not within the LDH galleries but on its o…
A method is needed to accurately and rapidly determine the gravimetric bark content of a cotton sample. Gravimetric bark content represents the percent bark mass through out the volume of a cotton sample. The current method for measuring gravimetric bark content is a labor intensive, lengthy process. Machine vision, o…
The corrosion of underground structures, such as pipelines, depends on soil aggressiveness towards the metals. Two different methods of protection are used: (a) cathodic protection and (b) polymer coatings. The assessment of the degradation of buried structures is not easy because of the complex composition of the soi…
Technical Briefs Effect of Ultrasonic Vibration on Transient Boiling Heat Transfer During Rapid Quenching of a Thin Wire in Water H. Yamashiro, H. Yamashiro Institute of Advanced Material Study, Kyushu University, Kasuga, Fukuoka, 816, Japan Search for other works by this author on: This Site PubMed Google Scholar H.…