Materials Literature
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Mechanical stress has been applied to samples of grain-oriented 3% silicon-iron magnetized at various angles to the rolling direction. The angle between the magnetizing field, H, and the flux density, B, is known to vary considerably and when stress is applied either parallel or perpendicular to the rolling direction…
The effect of Co, Mn, Ti, and Al substitutions on two important microwave relaxation parameters, the spin-wave linewidth ΔHkand the high field effective linewidth ΔHeff, for lithium ferrite, Li0.5Fe2.5O4, has been examined. Cobalt tends to increase both linewidths, while Mn tends to decrease them. The quantitative dep…
The effect of pH and sulfide ions on the corrosion behavior of 1040 carbon steel in aqueous solutions was determined by potentiodynamic polarization techniques. The investigations were conducted in a pH range of 6 to 14 and sulfide ion concentrations between 1 to 10,000 mg/l. General corrosion rates were found to be h…
Anisotropic Mn-Al-C (Ni) magnets are potential substitutes for Alnico 5 and 8. The limited machinability of the alloy and the fact that it is cobalt-free made it particularly interesting. The low Curie point and the costly warm extrusion process needed for grain orientation are drawbacks. The objective of this study w…
Abstract Calcitic papermill lime‐sludge, a by‐product of the kraft paper process, was evaluated as a liming material and its equivalency with dolomitic agricultural limestone determined. An incubation study involving 10 medium‐ or light‐textured Wisconsin soils demonstrated that lime‐sludge neutralizes soil acidity ve…
The problem of diffraction from lossless reflection gratings is treated with a modal expansion formulation which incorporates an impedance condition on the mode eigenfunctions along the groove aperture. The theory for both fundamental polarizations is applied to three different grating profiles and is found to yield r…
Abstract Bruchmechanische Werkstoffkenngrößen von 17 Eisen‐Kohlenstoff‐Gußlegierungen der folgenden Sorten wurden in der vorliegenden Arbeit bestimmt: Gußeisen mit Lamellengraphit, Gußeisen mit Kugelgraphit, Temperguß und Stahlguß. Die Geschwindigkeit des Ermüdungsrißwachstums, Δa/ΔN wurde in Luft und Vakuum in Abhäng…
Amorphous Fe-B and zero magnetostrictive Co-Fe-B films have been prepared by rf diode sputtering technique. The anisotropy of the films is reduced by annealing them at 300ÅC in a rotating field. Annealed Co-Fe-B films have small but homogeneous uniaxial anisotropy, and exhibit very low coercivity(0.015Oe) and high eff…
Kinetics for the reaction of hydrogen with plutonium‐1 w/o gallium were measured using powder prepared " in situ ". The rates obeyed a first‐order rate law and were independent of temperature from −29° to 355°C. A pressure dependence proportional to was observed at pressures less than 1 kPa. From 1 to 70 kPa the press…
The magnetization curve and the magnetic viscosity in reverse fields are investigated in sintered SmCo5 magnet alloys. The initial magnetization curve is shown to be close to that of an ideal reversible magnetic material until a field greater than 2500 Oe is applied. At greater forward fields significant pinning takes…
$^{35}\mathrm{Cl}$ nuclear quadrupole resonance measurements around the order-disorder ferroelectric transition in HCl and HCl-DCl mixed crystals are analyzed for possible evidence of pretransitional clusters of biased ferroelectric dipoles in the matrix of the paraelectric phase. It is shown that the hypothesis of an…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanistic investigation of the hydroxyl + hydroperoxo reactionMichael J. Kurylo, Odo Klais, and Allan H. LauferCite this: J. Phys. Chem. 1981, 85, 24, 3674–3678Publication Date (Print):November 1, 1981Publication History Published online1 May 2002Published inissue 1 Novemb…
Abstract Extinction of the diffusion flames in the stagnation‐point flow above the commercial polymers, poly(methyl methacrylate), polyoxymethylene (two types), polyethylene (three types), and polystyrene, is studied. The extinction data are used in a theory developed to obtain overall rate parameters for gas‐phase co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigher coordinate cyanide and isocyanide complexes. 11. Structural studies of three seven-coordinate isocyanide complexes of molybdenum(II) and tungsten(II)David J. Szalda, John C. Dewan, and Stephen J. LippardCite this: Inorg. Chem. 1981, 20, 11, 3851–3857Publication Date (…
Projectilelike reaction products from the $^{209}\mathrm{Bi}$+$^{136}\mathrm{Xe}$ reaction were studied at a laboratory bombarding energy of 1422 MeV. The fragments were identified by atomic number, and their kinetic energies and angular distributions were measured using three solid-state $\ensuremath{\Delta}E\ensurem…
Abstract The title compound has been synthesized by reaction of MeSnBr 3 and NaHSe in aqueous solution. The X-ray structure determination showed adamantane-like molecules (Sn-Se 253(1), Sn-C 215(1) pm) arranged in a quasi hexagonal-close packing. The atomic coordinates were used for an analysis of the vibrational spec…
The plastic deformation of niobium single crystals, purified by ultra-high-vacuum annealing, has been investigated in tension at temperatures between 77. and 4.2 K. The strongly orientation-dependent behaviour has been demonstrated by studying two tensile axis orientations, C (χ=l°, λ = 47°) and H (χ = 30°, λ = 45°).…
Abstract Die Perowskite Ba 2 B III SbO 6 kristallisieren monoklin (B III La, Pr, Nd) bzw. kubisch (B III Sm, Eu, Gd, Tb, Dy, Yb, Lu, Y). Die Sr‐Verbindungen, Sr 2 B III SbO 6 , besitzen eine monokline (B III Nd, Sm, Eu, Dy), rhombische (B III Yb, Lu, Y, Sc) bzw. kubische (B III In, Ga) Perowskitstruktur. Mit…
Abstract In a model reaction of terephthalic acid with aniline by using triphenyl phosphite in a mixed solvent of pyridine and N ‐methylpyrrolidone (NMP), mono‐ and dianilides were produced with relative yields varying with the content of pyridine in the solvent. The polycondensation of terephthalic acid with aromatic…
Abstract Based on the single, composition‐dependent glass transition criterion, poly‐ϵ‐caprolactone (PCL) was found to be miscible with each of four poly(styrene‐co‐allyl alcohol) (SAA) copolymers with hydroxyl contents between 1.3 and 7.7 wt %. Melting point depression of the PCL in the blends was used to evaluate th…