Materials Literature
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A theory of the eddy-current-limited complex permeability of ferromagnetic sheet is presented that takes account, for the first time, of the rotational permeability of domain interiors as well as wall motion. Models with contrasting domain structure are investigated; these are found to behave similarly when the domain…
The temperature dependence of sublattice magnetizations and the specific heat due to magnetic ordering of Mn 4 N were measured in order to study the origin of the anomalous thermomagnetic curve of the compound. The observed magnetization-temperature curves of two sublattices are more convex upwards than those of norma…
Removal of soda from a glass surface at high temperature can, on cooling, give appreciable strengthening due to lowering of the expansion coefficient at the surface. Soda depletion has been accomplished previously by treating a high‐expansion soda‐lime glass with SO 2 in the presence of oxygen and water. The depletion…
Young's modulus, shear modulus, and internal friction of the intermetallic compound NiTi have been measured as a function of temperature from about −180° to 600°C, in the kilocycle-per-second range. Annealed and cold-worked specimens were used. All the specimens showed the same general pattern, with a minimum in elast…
Abstract A method for the determination of reactivity ratios from conversion–composition data has been outlined. The conversion–composition changes during the copolymerization of styrene (M 1 ) and methyl methacrylate (M 2 ) have been studied at 60°C. By a method of graphical intersection, the integrated form of Skeis…
Films of iron and chromium were prepared at 4.2°K which show diffuse halo electron diffraction patterns characteristic of an amorphous state. In order to decide whether these films are in an amorphous state or consist of very fine crystallites, the radial distribution analysis was carried out for them. The results of…
The yellow crystals of the room-temperature modification of indium chloride, InCl, are cubic with a = 12.368 + 0.001/~.
The crystal structure of manganese ammonium sulfate hexahydrate, Mn(NH4)2(SO4)2.6H20,has been determined by a three-dimensional X-ray analysis with Fe Ke radiation (2 = 1.9373A).The crystals are monoclinic, space group P21/a, with 2 molecules per unit cell.The cell dimensions are a= 9"40, b = 12.74, c= 6.26 A, fl= 107…
Three principal continuous series of most degenerate unitary irreducible representations of an arbitrary noncompact rotation group SO(p, q) have been derived and their properties discussed in detail. The corresponding harmonic functions have been constructed.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis and Physical Properties of Some Organo- and Organosiloxysilicon PhthalocyaninesJohn N. Esposito, John E. Lloyd, and Malcolm E. KenneyCite this: Inorg. Chem. 1966, 5, 11, 1979–1984Publication Date (Print):November 1, 1966Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal Degradation of Isotactic and Syndiotactic Poly(methyl methacrylate)1H. H. G. Jellinek and Ming Dean LuhCite this: J. Phys. Chem. 1966, 70, 11, 3672–3680Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November…
The magnetization, magnetostriction and magnetoresistance of a randomly oriented assembly of single-domain particles have been calculated as a function of magnetic field. The particles are assumed to have either cubic or uniaxial anisotropy and the calculations extend over a much greater range of field strengths than…
Solutions for the flexural and axisymmetric vibrations of piezoelectric cylindrical shells of the crystal class 6mm are investigated. Applying suitable mechanical and electrical boundary conditions, the frequency equations have been obtained.
Filaments of semicircular cross section (diam 0.25–0.32 mm) were mounted in bulbs with plane windows. Chopped plane-polarized radiant flux was reflected from the flat surface, then passed through an analyzer whose plane of polarization made a 45° angle with the plane of reflection at the filament. The orientation of t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA New Series of Four-, Five-, and Six-Coordinated Iridium ComplexesL. Vaska and D. L. CatoneCite this: J. Am. Chem. Soc. 1966, 88, 22, 5324–5325Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https://pub…
The empirical correlation between meso-substitution and the phyllo-type spectrum in the porphyrin series is shown to be much less general than had previously been supposed. The variation of the spectrum with the electronic nature of the substituent is discussed.
Abstract An electron diffraction study was done with fine aragonite particles about 0.5 to 1.0 μ in size. The specimens were obtained by mixing a boiled calcium chloride solution (0.1 n) with 0.1 n of an ammonium carbonate solution. Extra spots were observed with half-integer indices {1⁄2,1⁄2,l}. This suggests the exi…
Abstract Stress softening of carbon black reinforced butadiene styrene rubber was studied as a function of the rate and temperature of the original tensile deformation. To a good approximation, stress softening depends on the product of the extension rate and a temperature function which is analytically well represent…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetic Studies on the Incorporation of Iron(II) into Porphyrins1Richard J. Kassner and Jui H. WangCite this: J. Am. Chem. Soc. 1966, 88, 22, 5170–5173Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuantitative Solubility—Structure Relationships for Some meta- and para-Substituted Benzoic Acids in Benzene and in Cyclohexane1C. Kinney Hancock, John N. Pawloski, and John P. IdouxCite this: J. Org. Chem. 1966, 31, 11, 3801–3804Publication Date (Print):November 1, 1966Publ…