Materials Literature
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A multiple-scattering formulation is given for the elastic scattering of electrons by a molecule, which is expressed by a sum of one-center long-range potentials and multicenter short-range potentials. The scattering amplitude for each potential is expressed using the partial wave method, and tractable formulae are gi…
The formation of a successful graft union depends on a complex series of interactions which take place between the cells of the stock and scion. As a result of these interactions processes which normally operate within the plant before the scion is separated from the stock are stimulated and redirected. In this paper…
The polarized absorption spectra of ${\mathrm{YAlO}}_{3}$:${\mathrm{Tm}}^{3+}$ were analyzed at 77\ifmmode^\circ\else\textdegree\fi{}K. A free-ion calculation was performed by fitting the centers of gravity of the $J$ manifolds. The coefficients which gave the best least-squares deviation of the calculated "free-ion"…
Abstract The vitamins, pyridoxine, pyridoxal, pyridoxamine, pyridoxal‐5′‐phosphate and pyridoxamine‐5′‐phosphate, have been studied in aqueous solution over a pH range of 2–12 by 13 C nuclear magnetic resonance spectroscopy. Resonance assignments are made primarily by the spin–spin coupling constants of carbons with p…
The development of permanent magnets based on the rare earth-cobalt 2-17 phases is reviewed. Powdered as well as sintered alloys of Sm2(Co, Fe)17have not shown very good permanent magnet properties. But modifications of these 2-17 phases with other, additional transition metals often exhibit more useful magnetic prope…
The complicated Fermi surface of graphite has been constructed successfully by using a new method of ab initio energy band calculation. The new method has been developed for he purpose of obtaining detailed band structures of layer-type crystals, in which the total wavefunction is constructed by two-dimensional OPW's…
Abstract The voltage relaxation of galvanic cells with zirconia electrolytes polarized between an inert silver electrode and an Fe + FeO electrode has been analyzed to obtain the diffusion coefficient of the electronic minority charge carriers in the temperature range between 700 and 900 °C. The method has been examin…
Abstract The piezoelectric d ‐ and e ‐constants, together with the elastic constant and the dielectric constant, were measured for oriented poly(γ‐benzyl‐glutamate) (PBG) films with various elongation ratios as a function of frequency and temperature, using an apparatus developed by us. The results are discussed in te…
The vertical sections of the Fe-Cr-Co system at 15wt%Co + 3wt%V, at 15wt%Co + 5wt%V, and at 15wt%Co + 3wt%V + 2wt%Ti are constructed. The extension of the α phase region of the system at 15%Co and 5%V, and at 15%Co and 3%V + 2%Ti is enough to allow for the solution treatment of the alloys with 21∼23%Cr at any temperat…
Insulation of 3.3 kV and 6.6 kV XLPE and PE cables was found to be mechanically stressed by 20 to 100 kg/cm2during the process of water tree formation. Infrared absorption curves change if water trees are created. A mechanism of the generation of water trees is discussed in detail. Critical values to judge the level o…
A new metallic glass, (METGLAS®alloy) Co74Fe6B20, has been identified which exhibits ∼ zero magnetostriction (|\lambda_{s}|<0.4\times10^{-6}). The saturation induction of this new alloy, 11.8 kG, is approximately twice that reported for other non-magnetostrictive glasses with similar transition-metal (TM) content b…
This paper considers the problem of estimating the core losses in a thin magnetic steel lamination when the driving flux contains not only the fundamental, but also odd harmonic components. Two numerical methods of predicting the eddy current losses due to an arbitrary flux waveform are briefly described. The importan…
Abstract Linear crystalline polymers can be processed to high degrees of orientation sufficient to produce dramatic increases in tensile strength and modulus. Three processes have been identified for inducing such orientation: cold drawing, hydrostatic extrusion, and solution spinning. All three processes utilize a hi…
A procedure for including measured analytical uncertainty into data analysis methodology is discussed. The suitability of various dispersion matrices and matrix rank determination criteria for data having analytical uncertainty is investigated. A criterion useful for judging the number of factors insensitive to analyt…
The observation of the domain pattern of 3% grain-oriented silicon-iron (transformer steel) by the Kerr magneto-optic effect has enabled a greater understanding of the basic magnetization processes of this material to be obtained. In this review paper, an attempt is made to describe recent progress in this field of st…
The discontinuity in the hard direction magnetisation curve for the alloy Pr2(Co0.6Fe0.4)17has been studied over the temperature rauge 5K-300K using a partially aligned polycrystalline sample. By means of the singular point detection technique we have measured the temperature variation of the anisotropy field and also…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and spin-state studies in solution of .gamma.-substituted tris(.beta.-diketonato) iron(III) complexes and their spin-equilibrium .beta.-ketoimine analogues derived from triethylenetetramineEric V. Dose, Kenneth M. M. Murphy, and Lon J. WilsonCite this: Inorg. Chem.…
The electrical membrane resistance rho(0) of the marine alga Valonia utricularis shows a marked maximum in dependence on the turgor pressure. The critical pressure, P(c), at which the maximum occurs, as well as its absolute value, rho(0) (max), are strongly volume-dependent. Both P(c) and rho(0) (max), increase with d…
Cross sections for evaporation residue formation and fission following complete fusion of $^{35}\mathrm{Cl}$ with $^{27}\mathrm{Al}$, $^{48}\mathrm{Ti}$, $^{54,56}\mathrm{Fe}$, $^{58,60,62,64}\mathrm{Ni}$, $^{90}\mathrm{Zr}$, and $^{116,124}\mathrm{Sn}$ have been measured with counter telescopes for laboratory project…
Abstract The structures of the precipitates of free‐radical poly(4‐vinylpyridine) (Vpy), free‐radical poly(2‐Vpy) and isotactic poly(2‐Vpy) with M(II)Cl2 (M = Co, Ni, Cu, Zn) obtained from solution have been investigated. The polymer compounds are similar to the known crystalline monomeric Vpy complexes and, with one…